NAME

AMinInputGain − get minimum input gain supported by audio controller

SYNOPSIS

#include <audio/Alib.h>

AGainDB AMinInputGain(Audio *audio);

DESCRIPTION

AMinInputGain() returns the minimum input gain supported by the audio controller associated with the audio connection.  If the application specifies a gain lower than this, the gain is set to AZeroGain, which results in no sound. 

audio specifies the Audio structure associated with this connection. 

RETURN VALUE

Upon successful completion, AMinInputGain() returns the minimum input gain, in decibels, that the audio controller supports. 

ERRORS

AMinInputGain() does not return an error status. 

EXAMPLES

The following example gets the minimum input gain supported by the audio controller:

AGainDB min_in; /* min input gain */
Audio *audio; /* audio connection */
.
.
.
/* get min input gain */
min_in = AMinInputGain(audio);

DEPENDENCIES

This function belongs to the Audio Library of functions that manage connections to an audio server.  The audio server must run on a system that has audio hardware.  To find out whether or not your system has audio hardware, refer to the hardware manual that accompanies your system. 

AUTHOR

AMinInputGain() was developed by HP. 

SEE ALSO

AGetChannelGain(3X) AGetGain(3X), AGetSystemChannelGain(3X), AGMGainRestricted(3X), AInputChannels(3X), AInputSources(3X), AMaxInputGain(3X), AMaxOutputGain(3X), AMinOutputGain(3X), AOutputChannels(3X), AOutputDestinations(3X), ASetChannelGain(3X), ASetGain(3X), ASetSystemChannelGain(3X), ASimplePlayer(3X), ASimpleRecorder(3X). 

Using the Audio Application Program Interface.

Hewlett-Packard Company  —  HP-UX Release 9.03: April 1994