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[fluid-dev] Clicking, continued

From: kd4crel02
Subject: [fluid-dev] Clicking, continued
Date: Fri, 28 Jan 2005 00:52:35 -0500
User-agent: KMail/1.7.1

Hi again,

I tried my hand at changing the code in 1.0.3 to disable the filter off 
optimization. It compiled and ran without errors. But the clicks persist, 
just as before! So I'm thinking that these clicks have nothing to do with the 
filter off optimization.

Now, I've made a rather interesting observation. I have two sound cards: my 
laptop's built-in ESS Maestro and an external USB Griffin iMic. I'd been 
using solely the iMic until now, so I decided to give my built-in card a try. 
And guess what, it's click-free. The problem only happens with the iMic.

So there's something strange about this particular card. Something about it is 
causing this clicking *only* while FluidSynth is producing the audio in real 
time. If I record FluidSynth's signal sent to JACK using jackrec, and play 
back the wave file - through the iMic, of course - there's no clicking at 
all. But there was plenty of clicking coming out of the iMic while I recorded 

I wonder if there's a relationship between my computer's CPU load and the 
amount of clicking... I also wonder if this is a problem with USB sound cards 
in general...

Anyway, I'll keep working at this for now.


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