Re: [music-dsp] Precision issues when mixing a large number ofsignals

2012-12-11 Thread Theo Verelst
I think you'll have to consider the difference between popularizing a scheme to get a "reasonable sounding" mix, probably by presuming certain self-correlation and sync issues in your input signals, and proper information theoretical theorems. I mean taking a random number of channels with ac

Re: [music-dsp] Precision issues when mixing a large number of signals

2012-12-11 Thread Andy Farnell
On Mon, Dec 10, 2012 at 01:39:48PM +1100, Ross Bencina wrote: > avoid any loss of precision due to truncation... etc. There is also > arbitrary precision arithmetic if you don't want to throw any bits > away. This seemed most pertainent to Alessandro's requirement that N was unknown and might be

Re: [music-dsp] Precision issues when mixing a large number ofsignals

2012-12-11 Thread Alessandro Saccoia
Just wanted to say thanks to everybody who answered. I know the problem could seem trivial, but since I need to try a lot of preprocessing setups (noise gating, eq'ing, and some speech recognition too..) for this mix to sound nicely, I wanted to be sure not to take a wrong approach in the very l