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Dr. 8 Bit
Account closed
Registered: Sep 2006
Posts: 25 |
reduce the audio-noise
How can I reduce the audio-noise from c64?? some ideas?? a capcitor...mmm.. |
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Sledge
Registered: Sep 2003
Posts: 102 |
http://www.bigmech.com/misc/c64mods/noisereduction.html
Perhaps this might help as a guide for noisereduction?
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uneksija
Registered: Jan 2002
Posts: 44 |
Thanks ready. for the information. I'll try to take a pic of my plugs someday. I want to stress that the way I did it is _not_ a hardware modification, but simply one way to connect the SID to the outside world. |
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Frantic
Registered: Mar 2003
Posts: 1627 |
A picture of this modified plug at http://codebase64.org/ would be 100% nice, in order to make it available for the future. :) |
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gregg
Account closed
Registered: Apr 2005
Posts: 56 |
<Post edited by gregg on 5/10-2007 04:03>
Just solder these two pins together.
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Devia
Registered: Oct 2004
Posts: 401 |
Uhm.. that picture shows the connector IN the computer and not the connector at the cable. On the cable it's of course mirrored.
...iirc ;-)
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Frantic
Registered: Mar 2003
Posts: 1627 |
<Post edited by Frantic on 5/10-2007 16:20>
Ok! I started a little article on this on codebase. Feel free to improve it. (Did Magervalp say something about that it was better to connect these pins with a resistor or something? I don't know shit about these matters.)
http://codebase64.org/doku.php?id=base:reduce_noise
Have a nice day! |
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gregg
Account closed
Registered: Apr 2005
Posts: 56 |
@Devia, that's right, I just forget to mention it! :)
Shorting composite video to ground shouldn't be dangerous though. |
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Hate Bush
Registered: Jul 2002
Posts: 453 |
so, i was too lazy to have fun with soldering. just as i expected.
BUT it is quite effective to get rid of the noise using the noise gate. very short attack, hold and short-to-mid decay did the job beautifully for me, and they will probably do it for you as well. provided that you don't use long (B to F) release phases. and yes, don't expect to filter out the whole noise from the low frequency dominated tracks (eg. kick drum). |
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Frantic
Registered: Mar 2003
Posts: 1627 |
...and I just updated the Codebase page on this topic a little.
http://codebase64.org/doku.php?id=base:reduce_noise
Yep! |
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Devia
Registered: Oct 2004
Posts: 401 |
Hm.. This past weekend I modded my A/V plug to short SIDIN and GND.
The result was.. well.. non-audible :( ..meaning I can't hear any noise reduction improvement from that at all.
Someone should test the result of this visually by sampling the output in the two cases... I'm too lazy to do this right now :-P
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