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Re: Analog noise on Atari Falcon

Posted: 26 Aug 2024 14:36
by exxos
Found this...

(oh think you found it already :lol: )




That does sound bad.. sounds like half the audio phase is missing or something!

Re: Analog noise on Atari Falcon

Posted: 26 Aug 2024 14:45
by exxos
Looking at the datasheets, both have a DC blocking cap on the audio output... The falcon however doesn't... That could be a reason if the DC offset isn't removed, it would be clipping constantly..

ITT.PNG
CS.PNG
falc.png

But that wouldn't really explain why the CS works and ITT doesn't anyway.

Re: Analog noise on Atari Falcon

Posted: 31 Aug 2024 10:09
by mikro
Maybe this might help? https://atari.joska.no/audiomod

Re: Analog noise on Atari Falcon

Posted: 05 Sep 2024 03:41
by leonk
UPDATE: The CODEC has been replaced (in a new socket) and WOW .. all the noise is gone! MP3, demo playback is crystal clear!
IMG_8174.JPG
IMG_8175.JPG

Re: Analog noise on Atari Falcon

Posted: 05 Sep 2024 09:42
by Steve
Nice! I guess that ITT DAC is just rubbish :)