debian man page for start_sound_input

start_sound_input(3alleg4)					  Allegro manual					start_sound_input(3alleg4)

NAME
       start_sound_input - Starts recording in the specified format. Allegro game programming library.

SYNOPSIS
       #include <allegro.h>

       int start_sound_input(int rate, int bits, int stereo);

DESCRIPTION
       Starts recording in the specified format, suspending audio playback as necessary if the card is not full duplex.

RETURN VALUE
       Returns the buffer size in bytes if successful, or zero on error.

SEE ALSO
       install_sound_input(3alleg4),		read_sound_input(3alleg4),	      stop_sound_input(3alleg4),	   digi_recorder(3alleg4),
       set_sound_input_source(3alleg4), get_sound_input_cap_parm(3alleg4),  get_sound_input_cap_bits(3alleg4),	get_sound_input_cap_rate(3alleg4),
       get_sound_input_cap_stereo(3alleg4)

Allegro 							   version 4.4.2					start_sound_input(3alleg4)