Re: mouse noise speculation - sound card related

Boris Tobotras (
Fri, 06 Mar 1998 12:22:53 +0300

On Fri, 06 Mar 1998 03:22:52 GMT, "David L. Parsley" wrote:

> I, too, have had trouble with extraneous noise from my Linux box while
> moving the mouse. I noted that, with no sound driver, no problem. I
> also noted that under Win95, no problem. My speculation: I assume that
> the sound card is picking up some electrical noise; so why no noise
> under W95? Is it possible that Win95 keeps the output levels at 0
> untill you actually play a sound, then brings them up to whatever you
> have set for the duration of the sound? Then of course, while a sound
> is being played, you probably wouldn't notice a little noise in the
> background. If this isn't what happens, it seems like a good idea for a
> userspace sound API.

More probably, you just have to set all unneeded unput channels'
level to 0. Microphone, line input, etc.

	Best regards, -- Boris.

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