[maxmsp] (Ambisonics) methods for encoding A-Format to B-Format

You also need to make sure your window / overlap combo doesn't  
introduce distortion along the way.  This is often overlooked.   
Summing windows with the chosen overlap should result in a constant  
magnitude; if it doesn't, you'll introduce AM distortion.

On Nov 9, 2007, at 1:58 PM, Stefan Tiedje wrote:

> julienbreval schrieb:
>> Usually, the FFT (especially in realtime) involves a time versus
>> frequency trade-off that can blur sharp attacks. Perhaps there are
>> some special techniques for avoiding it, though I have not heard yet
>> about them.
>
> This is not true as long you don't process your bins. You can do  
> the test yourself, and just send audio through a pfft~ which does  
> nothing. The result will be the same...
>
> If you do processing, you have to know exactly what has to happen  
> with the phase part of the signal to avoid that blur...
>
> There is no quality difference between realtime and non realtime,  
> but you get a pretty big latency (the framesize) if you want high  
> frequency resolution...
>
> Stefan
>
> -- 
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grrr waaa
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