[music-dsp] 32 bit floats >>> 24 bit integer

kernel 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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