[alsa-devel] Grey noise with HDA Intel PCH

[Clemens Ladisch]

Julian Wollrath wrote:
> when having my soundcard not muted, I get to hear grey noise over the
> speakers or over the headphone
>
> Simple mixer control 'Master',0
>   Mono: Playback 19 [22%] [-51.00dB] [on]

This is rather low.  A lower signal level implies a worse signal-to-
noise ratio.

> Simple mixer control 'Mic',0
>   Front Left: Playback 0 [0%] [-34.50dB] [on]
>   Front Right: Playback 0 [0%] [-34.50dB] [on]

This plays any noise from the mic input.


Regards,
Clemens