Hello Alain,
Thanks for your reply.
On Fri, 2004-02-27 at 03:13, Alain CrÃtet wrote:
> Hi digger,
>
> The 'PCM Capt' control is the digital input level.
> The 'Mic' control is a switch for the input selector and the analog input
> level (for the Mic only).
I guess I don't quite understand. In 'VX Control' (macosx) while using
the mic input there is a 'Digital Gain' control from infinity to 18db.
Is that the equivalent of the 'Mic" control in alsa?
Then with 'VX Control' in macosx there is a 'Preamplifier Gain' control
that goes from +30db to +51db. Is it not yet implemented in alsa? In
the source there seem to references to it, but I can't understand it
enough to know if it is.
>
> I have tested it with alsa 1.0.0rc1 and arecord, it's ok.
>
> Do you have unmute the 'Monitoring' control and set it to the correct
> level ?
I can hear it. Or do you mean that the 'Monitor' control should effect
the recording level? I've tried with everything on and 100% and looking
at the waveform the level is low. The only control that seems to have
any effect is 'Mic'.
In macosx at a normal speaking level I can easily drive the recorded
level into clipping. With alsa and linux I have to shout to get near
there.
Not that I want to cause clipping, but I need to record some low level
sound like water dripping. Without adding an external preamp it won't
work.
Thanks again for your help,
digger
>
> > ----------
> > De : digger vermont
> > Envoyà : Thursday, February 26, 2004 8:46 PM
> > Ã : Alsa Users
> > Objet : [Alsa-user] Vxpocket V2, does digital gain or mic preamp work?
> >
> > Hello all,
> >
> > I've a Vxpocket V2 I'm using on a powerbook g4 with alsa 1.0.2c. Using
> > arecord, the recorded level with a mic (Shure SM57) is low about -30db.
> > The 'PCM Capture Volume' which I think is supposed to be the
> > digital-gain or the mic-preamp seems to have no effect. Is this
> > control functional or am I trying the wrong thing?
> >
> > Thanks for any help
> >
> > digger
> >
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