save_sample (3) - Linux Man Pages
save_sample: Writes a sample into a file. Allegro game programming library.
NAMEsave_sample - Writes a sample into a file. Allegro game programming library.
DESCRIPTIONWrites a sample into a file. The output format is determined from the filename extension. At present Allegro does not natively support the writing of any sample formats, so you must register a custom saver routine with register_sample_file_type(). Example:
if (save_sample("sound.wav", sample) != 0) abort_on_error("Couldn't save sample!");