Re: What effect does enabling capture in alsamixer have on the device, system or applications?

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Koh Kah Oon Augustine wrote:
> we were ... unable to get any signals recorded from the sound card/mic
> array system for months until we found out that the issue could be
> solved by enabling audio capture on the sound card in Alsamixer

> 1. How does enabling capture in alsamixer actually allow for a device
>    to be able to start recording signals

This is not "enabling capture"; capturing was always enabled.

Alsamixer shows all mixer controls implemented by the hardware.
In your case, there is a "capture mute" switch whose default value
is not what you'd like.

>    what changes did alsamixer actually make to ALSA (its drivers etc)
>    that would have miraculously enabled the signals to be recorded?

The driver tells the device to change the setting of that mixer control.


Regards,
Clemens

------------------------------------------------------------------------------
Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server
from Actuate! Instantly Supercharge Your Business Reports and Dashboards
with Interactivity, Sharing, Native Excel Exports, App Integration & more
Get technology previously reserved for billion-dollar corporations, FREE
http://pubads.g.doubleclick.net/gampad/clk?id=157005751&iu=/4140/ostg.clktrk
_______________________________________________
Alsa-user mailing list
Alsa-user@xxxxxxxxxxxxxxxxxxxxx
https://lists.sourceforge.net/lists/listinfo/alsa-user




[Index of Archives]     [ALSA Devel]     [Linux Audio Users]     [Fedora Users]     [Fedora Desktop]     [Fedora SELinux]     [Big List of Linux Books]     [Yosemite News]     [Yosemite Photos]     [KDE Users]     [Fedora Tools]

  Powered by Linux