DaySequerra DownMix User Manual

0 (0)

5.1 Surround Encoder

DownMix	User Manual

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: info@daysequerra.com.

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!

David V. Day

and the DaySequerra Team

Table of Contents

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

DownMix Key Features

•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.

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.

DownMix User Manual

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 +10% of the nominal voltage

•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.

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.

DownMix User Manual

Technical Specifications

Latency of the DTS Algorithm:	<16ms at 48k sampling rate
Power Consumption:	25W Maximum
Dimensions:	Rack Mount; 1 RU (1.75” x 19” x 10.75”)
Sample Rate:	32kHz-96kHz, 24-bit
Dynamic Range:	140dB, DR any input to any output
GPIO:	DB-9 Female, 0-5V TTL opto-isolated
Regulatory:	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 one 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.

DownMix User Manual

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.

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.

DownMix User Manual

+ 14 hidden pages