Is the sound card in use?


 
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Old 10-18-2006
Is the sound card in use?

I'm just wondering if there's a simple way (that could be used in a shell script) to tell if the sound card is in use (as in audio is being played)?
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exstream(3alleg4)						  Allegro manual						 exstream(3alleg4)

NAME
exstream - Playing audio streams. Allegro game programming library. SYNOPSIS
#include <allegro.h> Example exstream DESCRIPTION
This program shows how to use the audio stream functions to transfer large blocks of sample data to the sound card. In this case, the sam- ple data is generated during runtime, and the resulting sound reminds of a car engine when you are accelerating. SEE ALSO
AUDIOSTREAM(3alleg4), END_OF_MAIN(3alleg4), SCREEN_H(3alleg4), SCREEN_W(3alleg4), allegro_error(3alleg4), allegro_init(3alleg4), alle- gro_message(3alleg4), clear_to_color(3alleg4), desktop_palette(3alleg4), font(3alleg4), free_audio_stream_buffer(3alleg4), get_audio_stream_buffer(3alleg4), install_keyboard(3alleg4), install_sound(3alleg4), install_timer(3alleg4), keypressed(3alleg4), makecol(3alleg4), play_audio_stream(3alleg4), readkey(3alleg4), screen(3alleg4), set_gfx_mode(3alleg4), set_palette(3alleg4), stop_audio_stream(3alleg4), textprintf_centre_ex(3alleg4), voice_start(3alleg4), voice_stop(3alleg4) Allegro version 4.4.2 exstream(3alleg4)