Sony SDDS Print Master manual Dtrs Machines Care and Use

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4 DT RS Machines ± Care and Use

4 DTRS Machines – Care and Use

4.1Models

DT RS machine are semi-professional machines designed for ªlargeº home studios.

T hey became quickly adopted as a standard 8 track digital tape machine in European dubbing studios. I t is still often the format of choice for moving material between studios. T here are two makes and several models, the most important of which are listed below.

§T ascam DA88 ± the original

§Sony PCM800

§T ascam DA98

At present the SDDS masters must be in standard 16 bit format. New high bit rate modes are now available, but the camera sites only have standard PCM800s and DA88s so they can’t play back the new formats.

4.2Levels

Note that the DA88 and PCM800 are factory set so that +4dBu = ±16dBfs. An allowance for this has to be made if mixing with studio operating levels other than 0dBu (as 0dBu = ±20dBfs). T he machine itself can be modified for different levels, or console input/output trims can be used. I f in doubt, check using the SDDS DT RS test tape. T he DA98 has software selectable levels for +4dBu = -16, -18 and ±20dBfs.

4.3Clean air

T here is a cooling fan in the DA88 and PCM800, which sucks air through the machine. T here is no filter and the only entry hole is the cassette drawer. T his means that any dirt, cigarette smoke etc. in the air is pulled directly over the heads, which is very bad for the performance of the machine. I t is recommended that the air around the machines is kept as clean as possible, with no smoking in the same room. T here is a simple modification to change the direction of the fan and add a filter. T he machine seems to be slightly hotter after this mod, so careful checks must be made afterwards. Details are on Eddie Ciletti’s web site www.tangible- technology.com

4.4Errors

Errors can occur for a variety of reasons. Problems caused by dirty or worn heads can be checked for by playing back the master after recording. However, many recent problems we have found were all caused by tape path misalignment. T his means that the tape will play back fine on the machine on which it was recorded, but causes errors on other machines.

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Contents Sdds Print Master Guidelines Contents Glossary of T erms Dash Sdds Print Master FormatLeft Left Cent RE RI GHT Cent RE Subwoofer Sdds Print Master Guidelines, Page 6 Sdds Print Master Guidelines, Page 7 Sdds Print Master Guidelines, Page 8 Sdds Print Master Guidelines, Page 9 Dash Machines Care and Use Dtrs Machines Care and Use DT RS Machines Care and Use Sdds Print Master Guidelines, Page 13 Akai DD8 machines Care and Use 0dBu or -4VU Sdds Print Master Guidelines, Page 16 Hear the Difference Sdds The industrys best sounding formatSdds Print Master Guidelines, Page 18 Estimonials Dolby level versus operating level. Historical notes Subwoofers Sdds Print Master Guidelines, Page 22 Sdds Print Master Guidelines, Page 23 Sdds Print Master Guidelines, Page 24 SPL Glossary of TermsW .SDDS.COM
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