NLS DS1, DA1 User Manual
National Library Service
for the Blind and
Physically Handicapped
The Library of Congress
Digital Talking-Book Player
Models DS1 and DA1
Library Guide
Version 1.00, February 2010
Table of Contents
1
General Information ................................................................................................ 2
1.1 General Description..........................................................................................................2
1.2 Abbreviations, Definitions, and Acronyms ......................................................................7
1.3 USB Flash Cartridge.........................................................................................................8
1.4 Digital Talking Book ......................................................................................................10
2 User Operation and Controls ................................................................................ 13
2.1 Player Controls ...............................................................................................................13
2.2 Playing Cartridges with Multiple Books.........................................................................22
2.3 Player Controls Using Assistive Technology Devices ...................................................23
3 Special Features for Libraries and Technicians.................................................. 26
3.1 Library Diagnostic Operations (via Keypad)..................................................................29
3.2 Technician Diagnostic Operations (via Keypad) ............................................................33
3.3 Player Configuration and Operation with an XML file ..................................................42
4 Player Checkout Procedure................................................................................... 43
4.1 General Inspection........................................................................................................43
4.2 Operation on AC Power...............................................................................................44
4.3 Operation on Battery Power........................................................................................44
4.4 Battery Condition and Player Statistics......................................................................45
4.5 Keypad Check...............................................................................................................46
4.6 Cartridge Check ...........................................................................................................47
4.7 Audio Quality................................................................................................................48
4.8 Headphone Check.........................................................................................................48
4.9 AT Device Port Check..................................................................................................49
5 General Upkeep Activities ..................................................................................... 50
5.1 Exterior Cleaning............................................................................................................50
5.2 Battery Replacement.......................................................................................................50
5.3 Software Upgrade...........................................................................................................51
6 Preparation for Shipping....................................................................................... 52
7 Long-Term Player Storage.................................................................................... 53
8 Appendix ................................................................................................................. 54
8.1 Barcode Format ..............................................................................................................54
8.2 Statistics Table................................................................................................................58
8.3 List of Error Announcements .........................................................................................60
8.4 Frequently Asked Questions...........................................................................................62
This publication has been prepared by
Engineering Section, Materials Development Division
National Library Service for the Blind and Physically Handicapped, Library of Congress
Comments and corrections should be directed to
Head, Engineering Section
NLS/BPH
Library of Congress
1291 Taylor Street NW
Washington DC 20542
NLSengineering@loc.gov
General Information
y
p
p
t
d
Section 1
1 General Information
1.1 General Description
The digital-talking book player is used to play audiobooks stored on USB flash-drive cartridges. These players are
supplied to eligible patrons through a network of co-operating libraries under the program administered by the
National Library Service for the Blind and Physically Handicapped, Library of Congress in executing United States
Public Law 89-522.
The player is able to play digital-talking books (DTBs) structured in ANSI/NISO Z39.86-2002, DAISY 2.02, or
CEA-2003 formats. The player can play audio files stored as AMR-WB+, MPEG I/Layer 3 (MP3) and RIFF WAV
format, either as part of a talking book or as stand-alone audio files.
The user operates the player using a number of buttons located on the top surface. In addition several player functions
occur automatically in response to patron actions or inactions. The player automatically powers on and gives an
audible greeting when the patron plugs the power cord into a live AC power outlet. When powered on, the player will
start or resume the playing of a DTB automatically when the cartridge is inserted into the player. When operating on
battery power and not playing a book, the player will turn off after 30 minutes of inactivity.
There are two models of the digital-talking book player, the Standard Model (DS1) and the Advanced Model (DA1).
Features Common to Both Models
The Rewind, Play/Stop, and Fast Forward controls are centered and located close to the front edge of the player.
These primary controls are used to start and stop the book and to move the reading position. g position.
Power
On/Off
Rewind
Pla
Tone Up
Tone Down
Sleep
/Stop
Fas
Forwar
Speed Up
Speed Down
Assistive Technology
USB Socket
hone Socket
Head
Volume U
Volume Down
February 2010 Digital Talking-Book Player 2
Library Guide
Figure 1-1. Standard Player (DS1)
General Information
Section 1
The square, green Play/Stop button initiates the playing of a book or stops a book or message already playing.
Holding this button down on the Standard Player enters and exits the built-in User Guide.
The white, triangular Rewind and Fast Forward buttons to the left and right of the Play/Stop button move
the reading position through the book, further in time and book structure the longer the button is held down.
Periodically the amount of book time traversed is announced, while beeps indicate the crossing of chapter
boundaries during both Rewind and Fast Forward.
Just behind the Rewind, Play, and Fast Forward controls are the Power, Sleep, and Volume buttons.
The round, red Power button is pressed to turn the player on and off.
It is located close to the left edge of the player.
The Power button can also be used to perform a hardware reset to reboot the player. A hardware reset is
accomplished by holding the button down until a beep is heard (more than 7 seconds).
The white Sleep button, shaped like a crescent moon, is used to start or continue playback for 15, 30, 45 or
60 minutes.
It is centered just behind the Play/Stop button.
At the conclusion of the sleep period the player’s volume will fade and playback will stop.
The yellow Volume buttons are shaped like arrowheads and point up and down.
They are close to the right edge of the player.
Behind the Power, Sleep, and Volume controls is a raised line running from one side of the player to the other. This
line divides the six most frequently used controls on the front of the player from the Tone and Speed controls located
behind the raised line and on either side of the round speaker.
The Tone and Speed buttons are shaped like up-and-down arrowheads, like the Volume buttons. They are located
between the round speaker and the edges of the player.
• The Tone buttons are close to the top left edge.
• The Speed buttons are close to the top right edge.
The Volume, Tone, and Speed controls all announce the direction of adjustment with each press of the button (e.g.,
“Tone up” or “Tone down”, with similar announcements for the other controls). When playing a book, the Advanced
Model enunciates the adjustments only by simple beeps, with a second beep to represent the normal or middle setting.
The Speed control changes the speed of the speech from 50 percent to 300 percent of normal, with no change in pitch.
The player can be powered from a 120 volt AC wall outlet or from an internal battery pack. The battery pack was
designed specifically for this player. It is not replaceable by patrons.
The player is designed to resist entry of small liquid spills and insects. The speaker is water-resistant and further
protected by a water-resistant speaker grill cloth. The keypad is seated into channels inside the player housing to
resist liquid spills entering the player.
The digital talking-book cartridge is inserted into the cartridge dock opening on the front of the player directly below
the Play/Stop button. The cartridge plugs into a USB type A receptacle socket at the rear of the cartridge dock. When
the player is powered, inserting a cartridge will start playback automatically.
The player has a pull-out handle located below the cartridge dock opening.
A compartment in the back of the player can be used for power cord storage while using battery power or when the
player is not in use.
1
When connected to AC power, turning the player off does not disconnect power from the electronics. Most of the
controls are disabled; however, the circuit is still active so that battery charging can occur, if necessary.
When the player is turned off while using batteries, power is completely disconnected from all electronics except the
battery monitoring integrated circuit.
1
February 2010 Digital Talking-Book Player 3
Library Guide
General Information
Section 1
The cartridge used with the player is about the size of a compact cassette, but with a more complex shape. The end of
the cartridge with the round finger hole is beveled, so that when that end of the cartridge is pressed down on a flat
surface in front of the player, the other end of the cartridge, with the USB Connector, tilts up and can slide smoothly
into the player. The end of the cartridge with the USB connector is also beveled so it will fit into the player only one
way.
Information
Previous
Element
Bookmark
Next Element
Menu
(Select Navigation Level)
Figure 1-2. Additional Controls on the Advanced Model (DA1)
Advanced Features
The Advanced Model has an additional row of controls between the raised line and the round speaker. The
advanced controls are for setting and retrieving bookmarks and for navigating through the structured levels of a
NISO, Daisy 2.02, or CEA-2003 book.
The white, rectangular Menu button in the center of the player selects the level at which step navigation by
the Next and Previous buttons occurs. Pressing this button repeatedly selects progressively finer navigation
levels available in a particular book. Navigation by phrase and by bookmark is also selectable.
The white, blunt arrow-shaped Previous and Next buttons on the left and right sides of the Menu button
respectively move the reading position to the previous or next element in the book. The level at which
navigation occurs by the Previous and Next buttons is set by using the Menu button. When set to the
bookmark level, the Previous button can be used to go to the beginning and the Next button to move to the
end of the book. These are two non-erasable bookmarks.
February 2010 Digital Talking-Book Player 4
Library Guide
General Information
Section 1
The white, diamond-shaped Information button near the left edge of the player is used to obtain
information about the reading position, the book currently being read, and the power and battery status of the
player.
The white, rectangular Bookmark button near the right edge is used to insert and delete bookmarks. Once a
bookmark is set, the reading position may be returned to the bookmark by using the Previous and Next
buttons provided the bookmark navigation level has been selected with the Menu button. Pressing this button
at a previously set bookmark will remove it.
External Connectors
Headphone
A bright green, circular headphone jack is located on the right side of the player. The player accepts headphones with
a 3.5 mm (mini) ring, tip, and sleeve plug. It will also accept a mono 3.5 mm (mini) tip and sleeve connector. The
player senses the presence of a connector and disconnects the speaker audio output. This output may be used to drive
external amplified speakers or a pillow speaker.
USB host
Behind the headphone jack is a USB port. This USB port can be used for several purposes:
• Patrons may connect Assistive Technology (AT) remote control devices to control the player. (Refer to
section 2.3.)
• Patrons can connect commercial off-the-shelf USB flash drives
Internet library.
• Repair personnel may use this port to access diagnostic information during servicing.
This USB receptacle is provided with a cover to protect it when not in use.
2
to play books obtained from the NLS
Battery
The battery pack comprises 6 Nickel Metal Hydride (NiMH) cells, a self resetting fuse and a 70°C thermostat for
safety, and a thermistor for end of charge detection. The nominal capacity of the battery is 2000mAH which will
provide approximately 35 hours of play time (at normal speed and normal volume settings). To preserve the service
life of the battery, a charge cycle is initiated only if the remaining capacity is estimated to have fallen to less than 75
percent of full capacity. (Note: unlike many simple consumer devices, the battery is not recharged on application of
AC power)
The player continually monitors the charge state of the battery pack. The battery’s self discharge
used to modify the capacity measurement.
The player reports the remaining capacity in number of hours of play time available unless this is greater than 75% of
the full capacity in which case the player reports “greater than H hours” (where H is 75% of the number of hours that
the player can play on a fully charged battery). When the player estimates that the capacity is than half an hour, the
announcement will be “Battery Low”. If the battery pack has been depleted so that the voltage is less than 6 Volts,
and the player is powered on using battery power, the message “Battery Low, Powering Off” is played and the player
will immediately power off. Due to the uncertainty of the capacity measurement the player underestimates the actual
capacity.
3
is estimated and is
2
Most but not all commercially available USB flash drives will function correctly as a DTB storage medium. NLS
maintains a list of known compatible and incompatible drives.
3
Self discharge is the loss of stored charge due to chemical reactions within the battery. The rate of self discharge
doubles for every 10
February 2010 Digital Talking-Book Player 5
o
C rise in temperature.
Library Guide
General Information
Section 1
It is estimated that the battery pack will have a service life in excess of 600 charge cycles. Under moderate battery
usage (4 hours per day for 5 days per week), the battery life should exceed 4 years. At the end of its service life the
capacity of the battery pack will be 75 percent of its initial value. A count of the number of charge cycles for the
current battery pack is kept by the player. This may be read by library staff through a diagnostic function.
Digital Talking-Book Player Specifications
Player size 157 mm (6.2 in.) width; 224 mm (8.8 in.) depth; 43 mm (1.7 in.) height
Player volume 151 l cm3 (93 in3)
Player weight 1.15 kg (2.52 lb)
Player box size 316.3 mm (12 in.) width; 232 mm (9.1 in.) depth; 97mm (3.8 in.) height
Player overpack (8 players) 480 mm (19 in.) width; 406 mm (16 in.) depth; 318 mm (12.5 in.) height
Book formats ANSI/NISO Z39.86-2002, Daisy 2.02, CEA-2003
Audio formats AMR-WB+ (3GP file format), MPEG 1/layer 3, RIFF WAV
Speaker
frequency response
Headphone
frequency response
Speaker power (max) 2 W
Headphone power (max) 60 mW
AT remote protocol USB HID (keyboard and gamepad devices)
AC voltage 120 VAC nominal, 60 Hz
AC current draw Maximum 9 mA RMS (when charging the battery pack)
DC current draw (nominal) 55 mA
AC protection 1 Ampere fuse: non-replaceable component of the internal AC/DC power supply
DC power
DC protection Within battery pack: 2.5 Amp resetable fuse. Thermal fuse at 70o C.
200 Hz to 10 kHz (+/- 6 dB)
20 Hz to 20 kHz (+/- 3 dB)
Battery pack: custom nickel-metal hydride, Part No. 42824591310
(7.2 volt nickel-metal-hydride pack: 6 cells in series with a nominal capacity of
2000 mAh)
February 2010 Digital Talking-Book Player 6
Library Guide
General Information
1.2 Abbreviations, Definitions, and Acronyms
Abbreviations and Acronyms
AT Assistive Technology
AMR-WB+ Adaptive MultiRate-WideBand+
ANSI American National Standards Institute
DAISY Digital Accessible Information System Consortium
DTB Digital Talking Book
DTBM Digital Talking-Book Machine
ESD Electrostatic Discharge
HID Human Interface Device
IPA Isopropyl Alcohol
mAh milliAmpere hour
MLA Machine Lending Agency
MP3 MPEG-1 Audio Layer 3 Format
NISO National Information Standards Organization
PC Personal Computer
PDTB Protected Digital Talking Book (Using DAISY PDTB2)
Service Center
USB Universal Serial Bus
VAC Volts Alternating Current
VDC Volts Direct Current
WAV Waveform Audio Format (audio file format variant of RIFF bitstream format)
3GP
3GPP Third Generation Partnership Project
During the warranty period: the manufacturer; post warranty, the contract repair
entity specified by NLS
Multimedia Container Format defined by the Third Generation Partnership
Project
Section 1
February 2010 Digital Talking-Book Player 7
Library Guide
General Information
Section 1
1.3 USB Flash Cartridge
The player plays DTBs stored on USB flash drive cartridges. These cartridges contain a type of solid state memory
that is nonvolatile and can be rewritten thousands of times. They are resistant to damage by extremes of temperature,
humidity, and other environmental conditions expected to be encountered by patrons and libraries.
The cartridge has a feature that enables erasing or rewriting of the contents, but only by authorized parties. Thus, it is
impossible for patrons to inadvertently or maliciously alter the contents of the book.
Cartridges are manufactured in several sizes. The nominal capacities are 1 GB, 2GB and 4GB. About 99.5 percent of
NLS DTB titles are less than 1GB in size.
Cartridges accommodate a print and braille label in a slightly recessed area to protect the embossed braille. This label
contains two 30-point print lines, four large-print (14-point) lines, and five rows of book information in braille. The
underside of the cartridge has an area available for a library-specific label or identifier.
The cartridge has mechanical features that assist handling by physically handicapped persons. It can be inserted into
the player in only one orientation.
Figure 1-3. USB Flash Drive Cartridge (Top)
Figure 1-4. USB Flash Drive Cartridge (Underside)
February 2010 Digital Talking-Book Player 8
Library Guide
General Information
Digital Talking-Book Cartridge Specifications
Cartridge size 57 mm (2.25 in.) width; 95 mm (3.75 in.) depth; 10 mm (0.39 in.) height
Cartridge weight 37 g (1.3 oz)
Technology USB high speed mass storage device
Capacity (unformatted) 1 GB, 2 GB, 4 GB
File system FAT12, FAT16, FAT32
Container size 112 mm (4.4 in.) width; 152 mm (6 in.) depth; 19 mm (0.75 in.) height
Container weight 110 g (3.87 oz)
Section 1
February 2010 Digital Talking-Book Player 9
Library Guide
General Information
Section 1
1.4 Digital Talking Book
A digital talking book is composed of a collection of computer files. These files contain the digitized audio content
along with information on the book’s structure to permit both random access and linear reading of the material. To
play the book, a compatible player requires information on how all the audio files fit together and the location of the
book structure elements such as parts, chapters, and optionally page numbers.
Digital talking books created for NLS are built to conform to the ANSI/NISO Z39.86-2002 standard. Using the
complete standard, books can be created in many formats such as audio, text, or mixed text and audio. The content of
NLS digital talking books contains only human narrated speech. In the following description of the DTB, only those
parts of the standard relevant to NLS-produced books are described.
1.4.1 Files That Make Up a Typical DTB
File Name Description Purpose
db54321.ppf
db54321.pncx
db54321-01.smil
db54321-02.smil
db54321-01.3gp
db54321-02.3gp
db54321-03.3gp
db54321-04.3gp
db54321-05.3gp
db54321-06.3gp
db54321-07.3gp
db54321ann.3gp
db54321hdgs.3gp
us-nls-db54321.ao
dtbsmil110.dtd
ncx110.dtd
oeb1.ent
oebpkg101.dtd
pdtb_protected.smil
protected.mp3
db54321.ncx
db54321.opf
Protected Package file (PPF) Book structure
Protected Navigation Control file (NCX) Book navigation
Synchronized Multimedia Integration Language
(SMIL) files
Audio clip organization
AMR-WB+ files
Compressed audio
AMR-WB+ announcement file
AMR-WB+ headings file
Authorization object
contains the symmetric keys for the encrypted files
Book protection
encrypted in the NLS public key
Document Type Definition file
Document Type Definition file
Entity file
Document Type Definition file
Administrative files for
book validation but not
required to play the book
Façade Book SMIL presentation
Façade Book announcement
Façade Book Navigation Control file (NCX)
Façade Book
Façade Book Package file (OPF)
1.4.1.1 Package File
The Package file contains administrative information about the DTB, the files that compose it, and how these files
interrelate.
The major parts of the Package file are as follows:
• Package Identity – a unique identifier for the DTB
• Metadata – Publication metadata (title, author, publisher, etc.)
• Manifest – A list of files that make up the DTB
• Spine – An arrangement of files providing a linear reading order
February 2010 Digital Talking-Book Player 10
Library Guide
Figure 1-5. Example DTB files
General Information
Section 1
1.4.1.2 Navigation Control File
The Navigation Control file (NCX) exposes the hierarchical structure of a DTB to allow the user to navigate through
it. The NCX is similar to a table of contents in that it enables the reader to jump directly to any of the major structural
elements of the document, i.e., part, chapter, or section. However, it will often contain more elements of the
document than the publisher chooses to include in the original print table of contents. Other elements such as pages
can be included in separate, nonhierarchical lists and can be accessed by the user as well. These NCX elements
contain pointers to elements in the SMIL file. Each NCX element has an associated audio label (or tag) that the player
renders to notify the user (e.g., “Chapter One”). These labels access clips in audio files directly, not through the
SMIL files.
It is important to emphasize that these navigation features are intended as a convenience for users who want them,
and not as a burden to those who do not. The NCX is used primarily by the Advanced Model. It does not contain
information required for linear playback of the book.
1.4.1.3 SMIL Files
The SMIL (Synchronized Multimedia Integration Language) files contain information that weaves together the
various parts of the audiobook into a complete presentation. These files define the order, timing, and location of the
audio clips that compose the DTB. There will be one or more SMIL files in each DTB. Each SMIL element will
identify an audio file that contains the clip. The start and end times of the clips referenced in the SMIL elements are
relative to the audio file and not the entire DTB.
1.4.1.4 Audio Files
The digitized audio files are compressed during the production of the DTB to reduce their size. NLS uses AMRWideband Plus (WB+), an advanced compression standard specifically designed for high-quality voice compression.
The compressed audio is stored on the cartridge in the 3GP file format.
1.4.1.5 Authorization Object File
The audio files and the content of some other files are encrypted to meet the requirements of copyright law. The keys
to decrypt the audio and markup files are unique for each book and are themselves encrypted and stored in the
Authorization Object file. The player contains a private key that is used to decrypt the Authorization Object file and
recover the book keys required to decrypt the book content. Commercial players that have not been enabled to play
NLS books do not contain this key and thus are unable to play NLS protected books.
1.4.1.6 Administrative Files
A DTB contains several files that play no role in rendering the book. These files describe the rules that the book
content must follow to be valid. They are used in the production and validation of the DTB.
1.4.1.7 Façade Book
All NLS DTBs actually have a second book contained on the cartridge. This so called Façade Book is played only
when the encrypted book cannot be played. A Façade Book will never be heard when playing a book on an NLS
player, but it may be played on a third party commercial player that has not been authorized to play NLS books. The
Façade Book merely informs users that they are not authorized to read the book.
1.4.2 How the Player Uses the Files
To read a book linearly, that is to say from beginning to end, the player opens the Package File and uses the “spine”
to identify the sequence of one or more SMIL file presentations to play. The SMIL file contains a series of pointers
to audio clips to be played. These clips are located in the compressed 3GP Audio Files.
If a user wishes to use the features of the Advanced Model to move directly to a place in hierarchical book structure,
such as a chapter, the player will use the information contained in the NCX file that will point to the position in a
February 2010 Digital Talking-Book Player 11
Library Guide
General Information
gp
Section 1
SMIL file where the chapter begins. The NCX file will also have a direct pointer to the audio clip that will render the
name of the chapter so that the user can quickly locate the navigation point of interest. Both the standard and
advanced players use information in the NCX file to report the book title and reading position location.
Before a protected book can be played, the player examines the Authorization Object to determine the secret key
required to extract the unique book keys from the Authorization Object. If the player has the key required, it will
decrypt the book keys and use them in turn to decrypt the book’s audio and navigation information. If it does not
have the secret key that this book was protected with, it will play the Façade Book.
Authorization Object
us-nls-db54321.ao
Audio “label” clips
play when user
navigates (e.g.,
“Chapter One”).
db54321hdgs.3gp
“Book Keys” required
to decrypt protected
files.
Package File
db54321.ppf
NCX File
(Navigation)
db54321.pncx
Audio File
The player contains the “private” key to
decrypt the Authorization Object which
hold the “Book Keys”
SMIL Files
db54321-01.smil
The “spine” of the
book contains a
list of SMIL files to
be played in
order.
Each navigation
mark points to a
SMIL element
within a SMIL file.
db54321-02.smil
Each SMIL
element points
to an audio clip
within an audio
file.
Audio Files
db54321ann.3gp
db54321-01.3gp
db54321-02.3gp
db54321-03.3gp
db54321-04.3gp
db54321-05.3gp
db54321-06.3gp
db54321-07.3
Façade Book
pdtb_protected.smil
protected.mp3
db54321.ncx
db54321.opf
Figure 1-6. Representation of a Typical NLS Digital Talking Book
February 2010 Digital Talking-Book Player 12
Library Guide
User Operation and Controls Section 2
2 User Operation and Controls
The player responds to user actions by a combination of two processes. The first moves or stops moving the reading
position (referred to as navigation) and the second initiates or alters the characteristics (volume, tone, or speed) of the
audio rendered by the player.
The reaction of the player to user action is principally affected by
• Whether or not the player is playing a book
• How the book is “marked up,” i.e., the type and number of navigation points created when the DTB was
produced
• The format of the book on the cartridge (ANSI/NISO Z39.86, DAISY 2.02, CEA2003)
• Whether a cartridge is inserted into the player
• The type of player (Standard Model or Advanced Model) and its verbosity setting
• The sequence and timing of the user actions (e.g., the player may react differently to a press and hold on a
control than to a faster press and release)
2.1 Player Controls
The description of player controls in this section refers to several player states:
1. Primary
The usual function for the control. Most controls require a book cartridge with a DTB to be inserted into the
player for this function to be available. A simple press and release will always initiate the primary function
for the control.
2. Secondary
A control may have several functions depending on how the user operates it. A secondary function will be
accessed by an action other than a simple press and release such as holding the button for several seconds.
3. Key Describer
When no book cartridge is inserted in the player, the player is in the Key Describer state. Unless otherwise
noted, all buttons will give a brief explanation of their operation when the user presses them in this mode.
February 2010 Digital Talking-Book Player 13
Library Guide
User Operation and Controls Section 2
Play/Stop
Primary
Pressing the Play/Stop button while the player is stopped starts or resumes playback of the
book. Playback resumes from the reading position noted by the player for the current book
when playback or navigation last ended.
Pressing the Play/Stop button while the player is playing a book or message stops playback
and silences the player.
Playback commences automatically upon the insertion of a book cartridge from the last
reading position recorded by the player for the particular book on the cartridge or from the
beginning if the book has never been played.
When the player is stopped and the reading position is the end of the book, pressing
Play/Stop once will play a message informing the user of this and that pressing Play/Stop
again will move the reading position to the beginning of the book.
Secondary (Multiple Books on a Cartridge)
Play/Stop
When a cartridge containing more than one book is in the player, pressing and holding the
Play/Stop button will enter the Bookshelf mode. In this mode the user can select from the
books available on the cartridge using the Rewind or Fast Forward buttons. Pressing the
Play/Stop button will exit the Bookshelf. The player will remember the book selected even
if the cartridge is removed from the player. On the Standard Player, the first book
encountered on the Bookshelf will always be the User Guide. (this functionality was added
in firmware revision 2.1)
Secondary (Standard Model only)
When no cartridge is inserted in the Standard player or only one book is present on a
cartridge inserted in the Standard player, pressing and holding the Play/Stop button will
switch playback from the DTB on the cartridge, or from the Key Describer, to the built-in
User Guide. When the User Guide is enabled, it can be read just like a regular DTB.
Pressing and holding the Play/Stop button, when the User Guide is enabled will return
playback to the cartridge DTB. The User Guide can be entered at any time.
February 2010 Digital Talking-Book Player 14
Library Guide
User Operation and Controls Section 2
Rewind
Rewind and Fast Forward are the principal means of book navigation for the Standard
Model player. The rewind and fast forward behavior of the Standard and Advanced Models
are the same; however, users of the Advanced Model will most likely use its other controls
to perform most navigation.
Pressing and releasing the Rewind (RW) button moves the reading position back 5
seconds.
Pressing and holding the Rewind button moves the reading position back at an
accelerating rate.
RW
When a chapter
immediately following a beep will snap the reading position to the beginning of the chapter.
If a chapter boundary is crossed after moving the reading position back 15 minutes, rewind
proceeds by chapter (one chapter for each 2 seconds the RW button is held). Until a chapter
boundary is crossed the acceleration will increase to a ceiling of 1 hour steps for each 3
seconds that the RW button is held.
Time Rewind
Initial Press 5 seconds
10 seconds 15 minutes
Until a chapter boundary is crossed:
13 seconds 30 minutes
16 seconds 1 hour
19 seconds 2 hours
Each 3 seconds +1 hours
Once a chapter boundary is crossed:
Each 2 seconds 1 chapter
Secondary (Multiple Books on a Cartridge)
When more than one book is present on a cartridge and the user has entered the Bookshelf
mode by pressing and holding the Play/Stop button, pressing the Rewind button will
select the previous title available on the cartridge.
_______________________
4
The term “chapter” actually may refer to other navigation levels depending on the particular book.
Some books may not be marked with chapter, in which case a navigation level of similar granularity
will be chosen.
4
boundary is crossed, a beep is heard. Releasing the Rewind button
Reading position
held
moves
2 seconds 20 seconds
4 seconds 1 minute
7 seconds 5 minutes
On release of the Rewind button, the
chapter name is announced if the
reading position has crossed a
chapter boundary.
Playback will continue following
release of the Rewind button only if
the book was playing prior to
pressing Rewind.
February 2010 Digital Talking-Book Player 15
Library Guide
User Operation and Controls Section 2
Fast Forward
Pressing and releasing the Fast Forward (FF) button moves the reading position forward
5 seconds.
Pressing and holding the Fast Forward button moves the reading position forward at an
accelerating rate.
When a chapter boundary is crossed, a beep is heard. Releasing the Fast Forward (FF)
button immediately following a beep will snap the reading position to the beginning of the
chapter.
If a chapter boundary is crossed after moving the reading position forward 15 minutes, fast
forward proceeds by chapter (one chapter for each 2 seconds the FF button is held). Until a
chapter boundary is crossed, the acceleration will increase to 1 hour steps for each 3 seconds
that the FF button is held.
FF
Time Fast Forward
Initial Press 5 seconds
2 seconds 20 seconds
4 seconds 1 minute
7 seconds 5 minutes
10 seconds 15 minutes
Until a chapter boundary is crossed:
13 seconds 30 minutes
16 seconds 1 hour
19 seconds 2 hours
each 3 seconds +1 hours
Once a chapter boundary is crossed:
each 2 seconds 1 chapter
held
Reading position
moves
On release of the Fast Forward
button, the chapter name is
announced if the reading position has
crossed a chapter boundary.
Playback will continue following
release of the Fast Forward button
only if the book was playing prior to
pressing Fast forward unless the end
of the book is reached.
Secondary (Multiple Books on a Cartridge)
When more than one book is present on a cartridge and the user has entered the Bookshelf
mode pressing the Fast Forward button will select next title available on the cartridge.
February 2010 Digital Talking-Book Player 16
Library Guide
User Operation and Controls Section 2
Power
Primary
Pressing the Power button turns the player on and off when it is being powered from the
battery. When the player is powered by AC, the Power button enables and disables the
keypad and USB ports, but part of the circuit is always powered (battery
monitoring/charging).
The player turns on automatically when AC power is applied.
Secondary
Pressing and holding the Power button for 7 seconds will apply a hardware reset to the
Power
microprocessor. This should be necessary only when the player has become unresponsive
to other controls. Resetting the player does not erase any stored data or bookmarks.
Key Describer
If the player has no cartridge inserted, pressing the Power button plays an informative
message describing the use of the Power control and the remaining battery capacity.
Pressing the Power button again during this message or shortly thereafter turns the player
off.
Volume
Pressing the Volume Up or Volume Down button adjusts the audio volume. Each press
of the control will make one adjustment. There is a total of 45 dB of volume control in 15
steps. Each step is either three or four dB. The lowest volume setting will not mute the
audio output.
A distinct double beep sounds when the volume is adjusted to the maximum or minimum
to inform the user that no more adjustment is available.
If the volume is adjusted to the lowest setting when the machine is powered off, it will be
reset at a slightly higher level when the player is subsequently turned on. This is done to
ensure that the user can hear the player power up.
Volume
Primary
Pressing the Sleep button starts both playback and a timer that will turn the player off
after 15 minutes. If the button is pressed again, within 5 seconds, the sleep timer is
increased in 15 minute steps up to 1 hour. When the timer expires the audio will fade out
over 5 seconds and playback will stop.
Pressing the Play/Stop button while the sleep timer is active will disable the sleep
function. Pressing any other controls, such as volume, will have no effect on the sleep
Sleep
February 2010 Digital Talking-Book Player 17
timer.
Secondary
The player’s serial number and software version can be played by rapidly pressing the
Sleep button 10 times or more when a cartridge is not inserted. The informational
message will repeat until the Play/Stop or Power button is pressed.
Library Guide
Sleep
User Operation and Controls Section 2
Tone
Pressing the Tone Up or Tone Down buttons adjusts the tonal quality of the player
audio. The treble (high frequencies) can be boosted by up to 10 dB with the tone up
control, and the bass (low frequencies) can be accentuated by the same amount with the
tone down control (compared to the mid setting, which is flat). At the extreme Tone Up
setting, there is a 10 dB boost in treble and a 10 dB cut in bass. An analogous effect
Tone
occurs at the extreme Tone Down setting.
A distinct double beep sounds when the tone is adjusted to maximum or minimum to
inform the user no more adjustment is available. A different beep and announcement
sound at the neutral tone setting.
The tone adjustment is only active when a book cartridge is inserted. When a book
cartridge is inserted for the first time, the player sets the tone level to neutral. The player
remembers the setting for each book so that the tone setting for that book is recalled when
the book cartridge is reinserted.
Speed
The speed of playback is adjustable using the Speed Up and Speed Down buttons. The
speed is adjustable from one half to three times normal. That is to say if a book took a
narrator 7 hours to narrate, it would take 2 hours and 20 minutes to render at the fastest
setting. The pitch of the audio at all speed settings remains the same.
Speed
A distinct double beep sounds when the speed is adjusted to maximum or minimum to
inform the user no more adjustment is available. A different beep and announcement
sound at the normal speed setting.
The speed adjustment is only active when a book cartridge is inserted. When a book
cartridge is inserted for the first time, the player sets the speed level to normal. The player
remembers the setting for each book so that the speed setting for that book is recalled
when the book cartridge is reinserted.
February 2010 Digital Talking-Book Player 18
Library Guide
User Operation and Controls Section 2
Controls Exclusive to the Advanced Model (DA1)
Information
Primary
Pressing the Information (Info) button gives information on the book and on the player state.
Information given for an ANSI/NISO book:
1. Current position in the book (i.e., chapter)
2. Current page number (if pages are marked in the book)
3. Total book time elapsed
Total book time remaining (at 1x play speed)
Total book time
4. Book Title
5. AC or battery powered
Estimated time the player will play a book on battery
Different information plays for Daisy 2.02 or CEA2003 books or for a collection of audio
Info
files.
Pressing the Info button while a message is being played will interrupt the rendering of the
information element and advance to the next information message.
Secondary
Pressing and holding the Info button for 1.5 seconds will switch playback from the DTB on
the cartridge, or from the Key Describer, to the built-in User Guide. When the User Guide is
enabled, it can be read just like a regular DTB. Pressing and holding the Info button, while the
User Guide is enabled will return playback to the cartridge DTB.
Menu
Menu
Pressing the Menu button selects the navigation level at which the Previous element and
Next element buttons operate. The levels available depend on the particular book. Many
books will be marked at the chapter level only, while some will mark parts and chapters or
chapters and sections. Recipe books are likely to have recipe and page levels.
The Phrase level actually permits navigation by SMIL segments or one minute intervals, if its
length is over one minute. The SMIL file weaves together all the components of the book
(audio fragments for NLS books) into a continuous “presentation.” Book producers can mark
significant points as SMIL segments without explicitly making them navigation points such as
chapters or pages. For example, each ingredient of a recipe may be a distinct SMIL segment.
Thus, at the phrase level, a recipe can be heard ingredient by ingredient by using the Next
element button.
The menu button is only active when a book cartridge is inserted. When a book cartridge is
inserted for the first time, the player sets the navigation level to the highest (coarsest)
available. The player remembers the setting for each book so that the navigation level set for
that book is recalled when the book cartridge is reinserted.
Secondary
Pressing and holding the Menu button for 2 seconds will set the navigation level to the
highest (coarsest) level.
February 2010 Digital Talking-Book Player 19
Library Guide
User Operation and Controls Section 2
Previous
Primary
Pressing the Previous (Prev) element button moves the reading position to the beginning of
the previous navigation element at the hierarchical level selected by the Menu button
(chapter, section, page, bookmark, etc.)
The player reacts differently depending on the current navigation level and whether the player
is playing the book prior to the Previous element action:
Prev
Navigation level
(set with Menu)
Part, chapter,
section, poem, etc.
Bookmark
Phrase
State Action
1. The reading position moves to the beginning of the
previous part, chapter, section, poem, etc.
Playing
Stopped
Playing
Stopped
Playing
Stopped
2. The book will play continuously from the new
reading position. NLS books will have the name of
the part, chapter, section, poem, etc. recorded at
this point.
1. The reading position moves to the beginning of the
previous part, chapter, section, poem, etc.
2. The book will play the audio element tag
associated with that part, chapter, section, poem,
etc. of the book and then stop.
1. The reading position moves to the first bookmark
prior to the current reading position or to the
beginning of the book if no bookmark was set.
2. The book will play the lowest navigation level
audio element (e.g., the section title if chapter and
section is present) and the elapsed book time at the
bookmark. Then the book will play from the
bookmark.
1. The reading position moves to the first bookmark
prior to the current reading position or to the
beginning of the book if no bookmark was set.
2. The book will play the lowest navigation level
audio element and the elapsed book time at the
bookmark. Then at least 5 seconds of audio from
the bookmark up to the end of the current SMIL
segment or 10 seconds, whichever is shorter.
1. The reading position moves back 1 minute or to
the beginning of the SMIL segment prior to the
current reading position, whichever is shorter.
2. The book will resume playing at that point.
1. The reading position moves back 1 minute or to
the beginning of the SMIL segment prior to the
current reading position, whichever is shorter.
2. The book will play at least 5 seconds of audio up
to the end of the current SMIL segment or 10
seconds, whichever is shorter.
Secondary
Pressing and holding the Previous button moves the reading position back five navigation
elements at the hierarchical level selected by the Menu button or 10 pages at the page level.
February 2010 Digital Talking-Book Player 20
Library Guide
Loading...