Related Manuals for MyTek Stereo96 ADC
Summary of Contents for MyTek Stereo96 ADC
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Page 1: User Manual
MASTERING ANALOG TO DIGITAL CONVERTER USER MANUAL VER.7/sep 2010 Use ver.5 manual for earlier units (without toslink) - Page 2 This manual may be updated Download the newest version at: http://www.mytekdigital.com For technical support, technical tips and support check: Http://www.mytekdigital.com/ or contact Mytek tech support at: highend@mytekdigital.com or at: tel. (646)-613 1822 fax.(212)-202 5331 Mytek 211 Centre Street New York NY 10013...
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Page 3: Table Of Contents
Quick Start………………………………………….…….3 Introduction..……………………………………....4 Operation- Internal jumper settings.......…..…...5 Operation- Typical setup -Balanced Signal Source….…...6 Operation- Analog input alignment……………...…….…8 Operation- Unbalanced Signal Source…….......9 Sampling frequencies and External synchronization…..11 SuperShaper-HR ™ Noise shaping and dithering…..13 Rack mount shelf........….....16 Companion Stereo96 DAC..........17 Specifications…………………………………………..18 Warranty conditions……………………………………... 19... -
Page 4: Quick Start
Running equipment with the same effect as Stereo96ADC on internal clock and slaving the wordclock output. Clocking via AES/EBU rest of equipment to Mytek clock is the line is recommended especially when recommended setting for best sonic cables are very long (over 20ft). -
Page 5: Introduction
Stereo96 Series Converters The MYTEK Stereo96 series consists of two 1/3 rack units- the Stereo96 ADC and the Stereo 96 DAC. They are also a part of an extended family of 1/3 rack units which also includes 192kHz capable converters, SRC and Studio Clock. Stereo96 converters... -
Page 7: Operation- Typical Setup -Balanced Signal Source
Typical Setup Balanced signal source Stereo96 ADC is equipped with 2 XLR analog inputs. For best signal to noise performance it is recommended the signal source has a typical low impedance output with standard +4dB line level balanced signal. Alternatively a weaker unbalanced signal source can be used as described in subsequent paragraph. - Page 8 The quality of recorded signal does not depend on how the digital destination is synchronized with Mytek AD converter. 6. Record- adjust input level with knob or by adjusting level at the source. Unless you are printing final CD master, we do not recommend recording too hot.
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Page 9: Operation- Analog Input Alignment
Analog Input Alignment When using internal trimpots analog input level needs to be aligned using an approx 1kHz sinewave fed from +4dB balanced source. The alignment does not affect audio quality, only input sensitivity. The alignment is performed using 10 turn trimpots inside the unit (see: "Internal Jumpers"). -
Page 10: Operation- Unbalanced Signal Source
The wordclock source can be terminated with internal 75 Ohm resistor inside the Mytek unit (see: "Internal jumpers"). The termination is recommended when using long wordclock cables (above 10 ft) and when the wordclock source is capable handling such termination. Do not terminate if the source is not capable of high current drive or cable is short. - Page 11 The quality of recorded signal does not depend on how the digital destination is synchronized with Mytek AD converter. 7. Record- adjust input level by adjusting level at the source. Unless you are printing final CD master, we do not recommend recording too hot.
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Page 12: Sampling Frequencies And External Synchronization
In typical setup the ADC is running on its internal clock with the rest of equipment synchronized to Mytek clock either through digital output signal or wordclock. In this configuration Mytek ADC serves as a very stable low jitter house clock which increases the integrity and robustness of the rest of the system. - Page 13 and must not be used for critical projects downsampling. Some such as Faulkner Downsampler (http://www.audiosignal.co.uk/freeware.html) provide excellent results for 88.2>44.1 but don't work for 96k. 88.2k is also easier to upsample to DSD. 96k sample rate, has in our opinion, a marginally better perceived sound quality than 88.2k but the difference is very small and difficult to perceive for most people.
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Page 14: Supershaper-Hr ™ Noise Shaping And Dithering
SuperShaper-HR ™ uses 9th order high resolution noise shaping filters with proprietary filter coefficients developed by Mytek Inc. The appropriate noiseshaping curve is programmed into noiseshaping filters. This feature allows for preserving most of 24 bit performance in 16 bit data output. - Page 15 More information about use of noise shaping in high resolution recording can be found in the following Audio Engineering Society Preprints ( http://www.aes.org ): “Coding Methods for High Resolution Recording Systems” Preprint Number: 4639 Convention: 103 1997-09 Author: J. Robert Stuart This paper reviews the recording and reproduction chain from the viewpoints of digital audio engineering and psychoacoustics.
- Page 16 “Optimal Noise Shaping and Dither of Digital Signals” Preprint Number: 2822 Convention: 87 1989-10 Author: Michael Gerzon Author: Peter G. Craven This paper discusses optimizing noise shaping, with or without dither, using filtered error-feedback round a quantizer. “Psychoacoustically Optimal Noise Shaping” Preprint Number: 2965 Convention: 89 1990-09 AES Journal Vol:Issue: 40:7/8 Page: 611 Year: 1992 Author: Robert A.
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Page 17: Rack Mount Shelf
The Stereo96 ADC is 1/3 rack space wide and 1U tall. Mytek provides a 1U rack mount shelf as accessory to mount up to 3 of 1/3 rack units. The units are attached to shelf with small screw connecting the shelf to bottom through a threaded hole on the bottom of the unit. -
Page 18: Companion Stereo96 Dac
Companion Stereo96 DAC Stereo96 DAC is a two channel hi-end Digital to Analog converter for recording and mastering applications. The main feature of this converter is its outstanding sound quality which makes it suitable for the most demanding projects when preserving the original signal quality is required. -
Page 19: Specifications
Specifications Conversion: Linear, 128x oversampling at 44.1/48kHz 64x oversampling at 88.2/96kHz Resolution: 24 bit Sample rates: 44.1kHz, 48kHz, 88.2kHz, 96kHz or wordclock 25-100kHz Dynamic Range: 120dB A-weighted, 117dB Total THD+Noise: -105dB (<0.0005%) Internal clock jitter:<10picoseconds Analog Inputs: +4dBm balanced or unbalanced, 10kOhm Digital outputs: Hi-speed (25-100kHz) AES/EBU and SPDIF Optical TOSLINK SPDIF/ADAT... -
Page 20: Warranty Conditions
No other warranty is expressed or implied. Any faulty unit should be sent, shipping prepaid, to the manufacturer service center. Prior to shipping the client should obtain from Mytek an RMA# for warranty services. Units sent without RMA# will not be accepted.
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