Audio Authority 1704 User Manual

User Manual

Model 1704

Demonstration Media Player

2

Introduction

The 1704 plays a wide array of audio and video les for interactive HD media
demonstrations. It has a variety of interface methods including four push-buttons,
serial communication, and IR. Load video and/or audio les on an SD card using
a Microsoft Windows® PC. Output can be digital and/or analog video and audio.
It is ideal for use with one or more Audio Authority® audio distribution ampliers
such as Model 1726 headphone demonstrators.

Features

• HDMI audio-video output (1080p)

• Composite video output (480i)

• Digital and analog audio output (2-channel)

• Multiple video and audio le formats

• Autoplay at power-up

• Small footprint, 4” x 6” x 1.5” including anges

Package Contents

Before installing this product, please check the
packaging and make certain the following items are
contained in the shipping carton:

• 1704 Media Player

• DC Power Adapter

• Remote Control (CR2025 battery not included)

• User Manual

Model 1704

3

Model 1704 (rear panel)

Model 1704 (front panel)

USBSDIR

LED1+

LED1-

LED2+

LED2-

LED3+

LED3-

LED4+

LED4-

GND

GND

GND

GND

K1

K2

K3

K4

A B C D E F G

DC12V

OFF

HDMI OUT

AUDIO CVBS OPTICAL I/O RS232

POWER

LED

H

I J K L M N O P

Panel Descriptions

# 1 push-button # 2 push-button # 3 push-button

# 4 push-button IR receiver SD card slot USB (rmware updates)

A B C

D

E F G

12V power input Power switch Power light HDMI output

Analog audio output 3.5 mm Composite Video Digital output (Toslink®)

I/O port for motion sensor (3.5mm) Serial port (DB9 connector)

H

I

J

K

L M

N

O P

4

SD Card Slot

The video and audio les are stored on an SD card (SD up to 4GB, SDHC up to
32 GB, does not accept SDXC) as well as programming instructions for custom

functionality. Do not use a computer running Mac OS to put les on the SD card.
Video, still images, and audio les placed on the root of the SD card will autoplay
on power up. If the SD card is updated to add new video les, check to make
sure the custom programming remains on the card.

Video Output

The 1704 HD output connects via an HDMI cable to HDMI display screens.
Composite Video may be connected (if needed) at the CVBS connector. Both
video outputs play at the same time.

Video File Information

Supported le types are listed below, with maximum video resolution and audio
format. Test all les before deployment.

Audio Output

The 1704 connects to any device that can accept 2-channel PCM digital audio
via an optical cable, or low-level analog audio through 3.5mm stereo connector.

Audio File Information

• Audio le types include MP3, WAV, ADPCM, AAC, OGG,
RA-lossless, and SRS.

• MP3 les: variable or constant bit rate (up to 320 kbps).

• WAV les: ADPCM, any sample rate up to 48kHz.

• FLAC les: 2 channel, variable bit rate 24bit/192K.

RS-232

The 1704 can respond to external commands via RS-232, or it can issue
commands to other devices. Basic commands are listed on page 8, custom
programming is available from Audio Authority.

File Type 720p/2-ch 1080p/2-ch

MP4

MKV

TS

MOV

5

Control Interface Connections

The 1704 can be controlled using four push-buttons,
RS-232, remote control, and/or via IR.

Push-Buttons

To control media using push-buttons, connect
4-wire momentary switches to each position at the
green terminal sockets (Figure 3). Compatible
push-buttons are available from Audio Authority
(Figure 2). Push-buttons are available in several styles
and colors; Figure 1 shows a stainless steel button
illuminated with blue LED ring.

Figure 1. Model 999S push-button

Figure 2. Push-button with optional disconnect harness

Button 2

Button 1

Red = LED+

Red = LED+

Black = LED-

Black = LED-

Blue = Switch

Blue = Switch

White = GND

White = GND

Button 4

Button 3

Red = LED+

Red = LED+

Black = LED-

Black = LED-

Blue = Switch

Blue = Switch

White = GND

White = GND

Figure 3. Push-button harness connections

6

Remote Control

The remote control is useful for setup and testing (Figure 5). Insert a CR2025
battery (not included).

Power Press to power on/off

Title Press to view title

Info Press to view channel info

Mute Press to mute audio output

Numeric Press to enter numeric input

Repeat Press to set repeat option

Time Seek Press to jump to specic point

TV Mode Press to switch between NTSC/PAL

Home Press to return to main menu

Menu Press to enter main menu

Slow Press to play in slow-motion

Setup Press to access Setup menu

Zoom Press to zoom in/out when playing back

Navigate Press the arrow buttons to navigate menu

OK Press to conrm selection

Volume - Press to reduce volume

Volume + Press to increase volume

Audio Press to select audio format

Subtitle Press to activate subtitles

Resume Press to resume play

Angle Press to view angle

Pause Press to pause playback

Return Press to return to previous screen

Stop Press to stop playback

FR Press to fast rewind

FF Press to fast forward

Previous 1. Press to go to the previous le when playing music

2. Press to page up the le list in browser

Next 1. Press to go to the next le when playing music

2. Press to page down the le list in browser

7

Figure 5. Remote Control

8

Using Control Interfaces

The player can be controlled by four push-buttons, IR commands (including
remote control), and RS-232 commands. All player interaction depends on how
les are named and arranged on the SD card (PC setup only, not Macintosh
compatible). Video, still images, or audio les placed on the root of the SD card
will autoplay on power up. To use playlists, put media les in separate playlist
folders. The folders can be any name but must be linked by name to a playlist
number within the autoplay.txt le, as shown in Example 2.

Note: If you need more than four “buttons” you can use the number keys on the IR
remote, or RS232 commands such as @00:05$, to trigger the corresponding playlist.

For example, the 1726 demonstrator allows eight buttons via RS-232; see page 11.

Using Push-buttons

Push-buttons can be used for transport controls like Play and Next Track, or they
can be used to start a media le or a playlist of les. Sample SD card folders are
available to demonstrate the capabilities of the 1704 media player:

www.audioauthority.com/downloads/videos/1704transport.zip

www.audioauthority.com/downloads/videos/1704playlists.zip

To test the functionality of each mode, copy the contents of a demo folder into
the root folder of an empty SD card and then insert it in the 1704 SD card slot.
Program the buttons using the example text le contents below.

Example 1: Push-buttons for Transport Control

This example shows how to use push-buttons to trigger
basic media player functionality. The player refers to the
commands in a text le on the SD card.

Inside the autoplay.txt le:

PLAY=1 assigns “Play” to push button 1
STOP=2 assigns “Stop” to push button 2
NEXT=3 assigns “Next” to push button 3
PREV=4 assigns “Previous” to push button 4

Example 2: Push-buttons Trigger Video Playlists

This example shows how to use push-buttons to trigger
specic video playlists.

Inside the autoplay.txt le:

01=Playlist1/*.* play les in the “Playlist1” folder when push-button 1 is pressed
02=Playlist2/*.* play les in the “Playlist2” folder when push-button 2 is pressed
03=Playlist3/*.* play les in the “Playlist3” folder when push-button 3 is pressed
04=Playlist4/*.* play les in the “Playlist4” folder when push-button 4 is pressed

NEXT

PREV

STOP

RETURN

PLAY

UP

DOWN

LEFT

RIGHT

SETUP

MENU

VOL_PLUS

VOL_MINUS

MUTE

Buttons

9

Creating a Slideshow with Audio

The push-buttons can be used for transport control of each slideshow. Place
still images in folders of the root directory and label the folder photo1/. Create a
corresponding audio folder named photo1_audio and place the background audio
les that folder. Place the autoplay.txt le in the root folder. Inside the text les
slideshow parameters can be adjusted such as playing time (parameter range 1-13
seconds), transition time (parameter range 1-13 seconds) and volume (parameter
range 1-31).

Inside the autoplay.txt le:

Transition=9 assigns transition from image to image in folder.
Slide time=13 assigns length of screen time per image.
Volume=30 assigns custom volume level for audio playback.
01=photo1/*.* play les in the “photo1/” folder when push-button 1 is pressed

Transition=9 assigns transition from image to image in folder.
Slide time=13 assigns length of screen time per image.
Volume=30 assigns custom volume level for audio playback.
02=photo2/*.* play les in the “photo1/” folder when push-button 2 is pressed

Transition=9 assigns transition from image to image in folder.
Slide time=13 assigns length of screen time per image.
Volume=30 assigns custom volume level for audio playback.
03=photo3/*.* play les in the “photo1/” folder when push-button 3 is pressed

Transition=9 assigns transition from image to image in folder.
Slide time=13 assigns length of screen time per image.
Volume=30 assigns custom volume level for audio playback.
04=photo4/*.* play les in the “photo1/” folder when push-button 4 is pressed

10

Using RS-232 Commands

Use the command format shown in the command list, and make sure the les and
folders are arranged and named correctly as shown above.

Basic Serial Command List

@00:OK$ OK

@00:UP$ Direction Key, Up

@00:REV$ Playback

@00:FWD$ Fast Forward

@00:REP$ Repeat Play

@00:MUTE$ Mute/Unmute Toggle

@00:VOL+$ Volume Up

@00:VOL-$ Volume Down

@00:STOP$ Stop

@00:PREV$ Previous File

@00:NEXT$ Next File

@00:ENTER$ Enter

@00:LEFT$ Direction Key, Left

@00:DOWN$ Direction Key, Down

@00:SYNC$ Start Over (return to the beginning of the le)

@00:POWER$ Power Toggle (On or Off)

@00:AUDIO$ Open Audio Format Window

@00:PAUSE$ Pause

@00:RIGHT$ Direction Key, Right

@00:01$ Play les in folder linked to Playlist 1 in autoplay.txt

@00:02$ Play les in folder linked to Playlist 2 in autoplay.txt

@00:99$ Play les in folder linked to Playlist 99 in autoplay.txt

Serial Protocol

Transfer Rate 9600 bps

Data Bits 8

Parity None

Stop Bits 1

Flow Control None or Off

5 4 3 2 1

9 8 7 6

GND RX TX

Pinout

Pin 2, Tx

Pin 3, Rx

Pin 5, Ground

Shell, Ground

11

Installation

• Attach the player to a at surface with the screws provided.

• Connect push-buttons, if desired, for media selection. Push buttons should
be four-wire momentary switches, and can be illuminated (2-5 volt LED).

• Connect A-V output(s) to a monitor, amplier, or a headphone amplier
if desired.

• Connect power supply to AC power, then to the 1704 power port.

• For initial testing, connect A-V output(s) to a test player to check for
desired functionality.

• Call Audio Authority with questions that are not addressed in this manual.

Operation

On power up, the POWER LED comes on to show normal operation. If media
les have been placed in the root of the SD card, the 1704 begins playing the rst
media le in the root. Operate push-buttons (if installed) to select media tracks.
Demonstration may also be triggered by selecting a product with push-buttons
attached to an accompanying Model 1726 headphone demonstrator (Figure 6).

Figure 6. Example System with Model 1726. With custom programming, the 1726 can trigger the 1704

to play a specic media le for each product.

Speaker

1704

Video Display

1726

Product Select Push-Button

Volume Up

Volume Down

(Up to 8 Push-Buttons)

Example System

Speaker

1726

Product Select Push-Button

(Up to 8 Push-Buttons)

RS-232
Digital Audio (Optical)
Button Harness
HDMI

RS-232
Audio
Button Harness
HDMI

2048 Mercer Road, Lexington, KY 40511-1071 USA

800-322-8346 • 859-233-4599 • Fax: [phone]

[e-mail] • www.audioauthority.com

752-698

Rev.20160929