ref: be0f4f860ae1a68a054c0d740b4c9ed9c3a2e486 dir: /bin/2mp3/
#!/bin/rc play -o /fd/1 >[2]/dev/null |\ audio/pcmconv -i s16r1c1 -o S16r1c1 |\ audio/mp3enc -r -v -q 0