Re: [LAU] Distorded Jamin?

On 10 Jul 2007, at 07:51, Sampo Savolainen wrote:

> On Sat, 2007-07-07 at 12:20 +0200, joel silvestre wrote:
>> Hi,
>>
>> I've just seen something strange, Jamin seems to generate some
>> distorsion even with eq, limiter and compressors bypassed. This
>> distortion disappear when Jamin is completly bypassed.
>
> That's a very good question. Could that be crossover distortion? Jamin
> divides the signal into three bands which it compresses  
> individually and
> then combines them back together.

I don't think so, the way it's done should make it distortion free. I  
would think it's more likely to be the compressors or limiter. Also,  
you'd expect distortion from a filter to be much higher, those peaks  
are about 90dB down, and AFAIR, there are no non-linear filters in  
jamin's signal path.

Do the 2ndary peaks move with the signal if you change the frequency  
of the sine wave?

Is there anything other than the master bypass that can make it go  
away? Prime suspect would be the limiter, but I'm not sure if you can  
bypass that. What happens if you reduce the amplitude? There's all  
kinds of processing that would cause distortion kicking in if the  
signal has high amplitude.

I'm just off on a trip, but I'll be back on Thursday, so I'll look at  
it then if someone reminds me.

- Steve

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