[nas] isolate input/output?

Erik Auerswald auerswal at unix-ag.uni-kl.de
Fri Mar 9 18:17:37 MST 2007


Hi,

On Fri, Mar 09, 2007 at 07:15:20PM -0500, Paul Fox wrote:
> i need to be able to tell nasd to use its normal output channels,
> for remote access, but to leave the mic input alone, so that it
> can be used by a local app.  can i do this currently?  or are the
> inputs and outputs all tied together in the single mixer device?

The input device is only opened if there is some NAS client requesting
data from it (if ReleaseDevice is set to "yes" in the config file). This
is independant of the input mixer settings. If MixerInit is set to "no",
then the mixer settings will not be changed when nasd is started.

Since version 1.8a the input- and output-devices can be totally
independant, including the mixer (for the OSS NAS server).

You can set the mixer in the inputsection of the config file to the
empty string ("") to disable any input gain control for NAS. The mixer
settings will not be changed by nasd in this case.

If you set autoOpen to "no" in the input section, nasd will not even try
to open an input device, unless some NAS client tries to read from the
input device.

Erik
-- 
Conventional Li-Ion batteries have been known to catch fire and explode.
                        -- Iddo Genuth



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