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Anybody knows any Mac alternative for Linux's APLAY program? I would like to run this script:

echo "main(i){for(i=0;;i++)putchar(((i*(i>>8|i>>9)&46&i>>8))^(i&i>>13|i>>6));}" | gcc -x c - && ./a.out | aplay

Which makes great sound effect, but I don't know how, since Mac OS doesn't have aplay.


Link to Wikipedia, which describes the functionality of aplay.

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What does aplay do? – Mark Dec 12 '12 at 11:34
See edit, linked url. – Michal Dec 12 '12 at 12:17
up vote 4 down vote accepted

I believe the sox utility stands in for aplay.

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Here is the same program, as a perl one-liner, which works (tested) on Mac, Linux, and Windows

perl -e 'for($i=0;;$i++){
    print pack("n", ((($i*($i>>8|$i>>9)&46&$i>>8))^($i&$i>>13|$i>>6))); 
}' | ./play -c 2 -b 8 -e unsigned -t raw -r 48k -

the "./play" command is the "sox" utility already mentioned in this article.

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aplay needs ALSA which is only available on Linux. You could try outputting that bytestream to a file and try to play with afplay on OS X. (You likely need to add proper AIFF headers for afplay to accept the file since it won't play a raw PCM dump (or however that bytestream coming out of that echo should be interpreted).)

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The fun part about the aplay and this little C algorithm is that it changes and generates different sounds over time, so outputting it would take that away :( – Michal Dec 12 '12 at 14:02
See it as a longer time delay for buffering playback. :-) how is that data to be interpreted? That might help to find a suitable command line utility that works on OS X to play the data generated by the utility. (For example that might work with mpg123 though I haven't tried that yet.) – MacLemon Dec 12 '12 at 14:32
So what would you suggest? – Michal Dec 12 '12 at 16:08

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