Support and General Use > Recording
20 BIT ??
dwonk:
I think mmdats was refering to feeding a 20 bit signal via SPDIF optical. Alot of concert tapers that use the H120 are using outboard A/Ds like the SONY SBM-1, Grace Lunatec V3, Apogee Mini-Me and Denecke AD20. A few of these A/Ds are capable of outputs of 20 bit word lengths. The extra bits would improve detail as well as improve the overall dynamic range (which may be irrelevant considering the material being recorded and self noise of the devices).
mlind:
Amen to that!
mmdats:
I feel like if this is possible then someone should try and do it. I will do all sorts of testing on it, I just can't write the code.
A recording upgrade like this would be very significant among tapers like myself, who run a 24/96 signal to the iRiver to be truncated without the proper UV22HR dithering down to 16 bit.
Please help us out with the 20bit recording,
Thank you
saratoga:
I don't think dither really matters when your noise floor is at 60dBA. Since the bottom 30dB is just noise anyway, you're not going to notice any dithering applied.
Davide-NYC:
While full 20 bit sounds great (pun intended) in theory, I'm not sure what actual aural benefit (if any) we would experience. I'm probably wrong but AFAIK it took MikeS some herculean effort to get the big SWCODEC recording update done a couple months back.
Not to discourage features but I'm not certain proper rigorous testing has been done (or at least reported) on the H1x0 units with the current Rockbox code. I know I haven't been doing any testing since the big update.
Basically I'm saying if it's a choice between features and stability (for recording) I always will choose stability. Not to thread hijack, but how are people finding the current code? Is it satisfactory? Any problems?
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