[music-dsp] 32 bit floats >>> 24 bit integer
le_kernel at spymac.com
Fri Jan 20 11:52:04 EST 2006
On 20 Jan 2006, at 15:35, Nigel Redmon wrote:
> Not sure of the context for which you're dithering your individual
> tracks... of course, if you need to transfer individual tracks, you'd
> dither them individually, but if you're transferring a mix, you'd do
> the mix in floating point and dither the mix; dither trades off the
> harsher distortion of rounding/truncation error for noise, so you add
> dither just before you need to reduce the word length.
I got a bit sidetracked by the dither. although I did wonder if dither
before truncation is equal to dither after truncation.
what I was also getting at is whether all float >>> integer conversions
are equal. there's no special voodoo magic involved, is there?
> On Jan 20, 2006, at 4:27 AM, kernel wrote:
>> this is partly where I'm coming from. my own software writes audio
>> tracks to 32 bit multichannel float files. these files are going to
>> end up in my DAW (protools) which only takes 24 bit integers. so
>> there *will* be further processing via EQ, combfilters etc. I've
>> been known to dither each individual track before now but I didn't
>> much like the results.
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