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DIY 24bit Mic level A/D -> SPDIF out?
DIY 24bit Mic level A/D -> SPDIF out?
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Old 13th May 2007, 08:36 PM   #1
scott wurcer is offline scott wurcer  United States
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Default DIY 24bit Mic level A/D -> SPDIF out?

I didn't find much seaching around (just a well known one based on some Cirrus chips). I was dismayed to find most low cost portable field recorders use 92-96 dB max dynamic range cheap (24bit?) A/D's. I would like to be more lazy about setting input level and worrying about wind noise and use post processing on the files. Many mics routinely do >110dB DR. Battery power a must.

Another question - SPDIF has 24 spaces for bits but I've come across devices that only take 16 of them. This was a long time ago, do most devices now recognize them? Forgive my ignorance, this digital stuff is not my game
"The question of who is right and who is wrong has seemed to me always too small to be worth a moment's thought, while the question of what is right and what is wrong has seemed all-important."
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Old 14th May 2007, 09:15 AM   #2
s_volkovoy is offline s_volkovoy  Ukraine
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96dB is aproximaly 16bit, 24bit depth teoreticaly can achieve 144dB, but it is very hard to do(usualy 6-4LSBs is noise).
SPDIF can transmitt both 16 and 24 bits per frame!! if you have 16 bit from 24 maybe your recording system is limited to 16.
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