DaySequerra DownMix 5.1, DownMix User Manual

5.1 Surround Encoder

DownMix

User Manual

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Welcome

Thanks for purchasing the DaySequerra DownMix. Our DTS Neural Surround™ DownMix reduces 5.1
surround sound to a stereo mix that accurately represents the 5.1 original. We design and build all of
our DaySequerra products to be completely reliable and easy to use, so you can concentrate on
producing great sounding broadcasts, not struggling with complicated equipment or difficult to use
product manuals.

While the DownMix has been designed to be straightforward to use, we do suggest that you spend a
few minutes familiarizing yourself with the features and operational functions that are contained in this
manual.

DaySequerra has been building broadcast quality products since 1989. The technology
developed for the DownMix, and all of our products, has evolved through a process of user
feedback, extensive listening, field-testing and careful refinement.

In the event that you encounter any technical or operational difficulties with this or any DaySequerra
product, please feel free to contact us at 856-719-9900. Our office hours are from 9 to 5 ET, Monday

through Friday. Or you can email your questions to: [e-mail].
Also, please remember to visit our website www.daysequerra.com for warranty registration and the

latest DaySequerra product information.

We have worked hard to ensure that your DaySequerra DownMix will reliably serve you for years to
come. With a modular design and upgradeable firmware, your new unit is easy to install and use right
out of the box.

We sincerely hope our products help you achieve a new level of excellence in your work!

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DavidV.Day
andtheDaySequerraTeam

DaySequerra | 154 Cooper Rd. #902 | West Berlin, NJ 08091 | Voice 856-719-9900 | [e-mail] | www.daysequerra.com

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DownMixUserManual

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TableofContents

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Important Safety Information 4
Service Information 4
DownMix Technical Specifications 5
Introduction 6
Operational Diagram 6
Typical Applications 7
Unpacking and Installation 8
Front Panel 9
Rear Panel 10
Meter Display 12
Home Screen 13
Programming Menu 14
Menu Tree 14
System Menu Functions 15
Faults 17
Firmware Update Procedure 18
Warranty 19

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• Brings the excitement of surround sound to your audience without replacing any

infrastructure.

• Active correction to fix issues such as comb filtering, spatial location and

distortion.

• The conveniences of a matrix surround encode/decode system with the

performance of modern day perceptual audio codecs.

• Backward compatibility with matrix decoders (Dolby® ProLogic II, SRS Circle

Surround, etc.).

• UpMix decoders featuring the DTS Neural UpMix Technology are now available in

over 70% of consumer AV receivers worldwide. The decoder will up-mix the signal
to the proper format for the user’s setup.

• Two channel audio stream can be edited, stored, or transported just like any

standard stereo stream on your current equipment without virtually any loss in
quality.

DownMixKeyFeatures

All rights reserved DaySequerra Corp. Copyright 2010.
All logos and trademark used herein are the property of their respective owners.
Specifications subject to change.

DownMix User Manual Revision B for firmware 3.17.09.

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ImportantSafetyInformation

• Indoor use only. Not for use in wet or damp environments.

• Maximum Relative Humidity: <80%

• Class I Equipment (grounded type)

• Electrical rating: 100-260V~50-60Hz 25W max

• Internal circuit breaker for continuous short circuit protection.

• AC Mains supply voltage fluctuations are not to exceed +

• Operations temperature range -40°C to 70°C

• Maximum altitude: 3000m (9843ft)

• Equipment suitable for continuous operation

• Weight: 3.6kg (8lbs) equipment only; 5.4kg (12.0lbs) shipping

Important Note: Please connect your DownMix to an uninterruptible power supply (UPS) to
provide other protection against power surges and low-voltage conditions.

If DownMix is subjected to a strong RFI field, such as those emitted from portable two way
radios, the display may “blank out”. To restore the display without rebooting the unit, turn the
rotary encoder to activate the main menu, and then press HOME. If the keylock is enabled, you
will have to deactivate it by pressing the ENTER key followed by BACK.

10% of the nominal voltage

ServiceInformation

The DaySequerra DownMix contains no user serviceable components inside the unit. Please contact
DaySequerra for repair and upgrade information. In the event that your unit needs to be returned to the

factory, contact us for a return authorization number. Please visit www.daysequerra.com and

register your new DownMix so we can keep you informed of the latest hardware and software
updates.

The lightning flash with arrowhead symbol is intended to alert the user to the presence of un­insulated “dangerous voltages” within the product’s enclosure that may be of a sufficient level
to cause harm.

The exclamation point within a triangle is intended to alert the user to the presence of important

operating and maintenance instructions within the
product literature.

Exposed portions of the power supply assembly are
electrically live. To reduce risk of electric shock, the
power cord must be disconnected when the power
supply assembly is removed. For continued
protection against electric shock, a correctly wired
and grounded (earthed) three-pin power outlet must
be used. Do not use a ground-lifting adapter and
never cut the ground pin on the three-prong plug.
The ground terminal of the power plug is connected
directly to the chassis of the unit.

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DownMixUserManual

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TechnicalSpecifications

Latency of the DTS Algorithm:
Power Consumption:
Dimensions:
Sample Rate:
Dynamic Range:
GPIO:
Regulatory:

<16ms at 48k sampling rate
25W Maximum
Rack Mount; 1 RU (1.75” x 19” x 10.75”)
32kHz-96kHz, 24-bit
140dB, DR any input to any output
DB-9 Female, 0-5V TTL opto-isolated
North America: Designed to comply with FCC Class

A part 15 requirements.
Europe: Designed to comply with LV Directive
73/23/EEC and EMC Directive 89/336/EEC; CE Mark
(EN 55022 Class A, EN55024); Designed for RoHS
and WEEE compliance.

FCCPart15RegulatoryStatement

This equipment has been tested and found to comply with the limits for Class A digital device pursuant
to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against
harmful interference when the equipment is operated in a commercial environment. This equipment
generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance
with the instruction's manual, may cause interference to radio communications. Operation of this
equipment in a residential area is likely to cause interference in which case the user will be required to
correct the interference at their own expense. The user is cautioned that changes and modifications
made to the equipment without approval of the manufacturer could void the user's authority to operate
this equipment. The user should use only shielded and/or grounded cables to combat sources of
interference.

EnvironmentalPreservationEfforts

This equipment has been designed and built by DaySequerra corporation to give many
years of trouble free service and is backed by our three year warranty and commitment
of providing the best customer support. When the time comes to retire your product
from service, it should be disposed of in accordance with local codes or ordinances. Do
not discard with household or commercial waste.

DaySequerra products are manufactured with the environment in mind. The
Directive on the restriction of the use of certain hazardous substances in electrical
and electronic equipment (2002/95/EC) restricts the use of six specific hazardous
materials in the manufacture of various types of electronic and electrical equipment.
Following this directive prevents these toxic substances from entering our
environment after disposal.

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Introduction

The DaySequerra DownMix enables 5.1 surround sound to be transported through any stereo
infrastructure using the DTS Neural Audio process. Because DownMix renders sound independently of
the transport environment, it will compliment analog, digital, linear or compressed mediums. The
process is based upon the principle that both natural stereo and 5.1 content are two dimensional; both
contain width and depth spatial attributes. DownMix can represent six channels of discreet audio
sources into a stereo down mix by transforming the sources to pure intensity and coherence encoding.
By correcting overlaps of the signal sources in intensity, time, coherence, polarity, and phase before the
six channels are combined, DownMix accounts for the problems suffered in traditional matrix encode
systems (comb filtering, spatial location distortion, etc).

This proprietary DTS Neural Audio process, or “watermark process” guarantees that surround
information is faithfully reproduced when later rendered by the DaySequerra UpMix or any Lt/Rt
system. In brief, DownMix produces a stereo mix that accurately represents the original content
whether monitored in mono, stereo, matrix or DTS Neural 5.1 Surround Sound.

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OperationalDiagram

The diagram below shows a DownMix taking a multi-channel audio source and creating two-channel
audio using the proprietary DTS Neural Audio process of embedding a watermark signal within the
stereo audio signal patch containing spatial and steering positioning information. The resulting stereo
audio signal is also known as Lt/Rt.

This approach to down mixing the audio into a two channel signal ensures that it can be transmitted
through any stereo-capable distribution system. Since the audio output is watermarked, it may be re-up
mixed again into the original format.

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DownMixUserManual