matesimulator - http://osmocom-analog.eversberg.eu/docs/

       36c3 Mate Bottle Simulator - a fun project. Don't take it seriously!

       This  program simulates the bottle blowing of a Club Mate bottle.  It will produce a tone that depends on
       the given fill of a bottle.  Dial 6283 on Eventphone's network and play the tone into the phone.

       -h--help

              This help

       -a--audio-device hw:<card>,<device>

              Sound card and device number (default = 'hw:0,0')

       -s--samplerate <rate>

              Sample rate of sound device (default = '48000')

       -w--write-tx-wave <file>

                                                                                                matesimulator(1)

matesimulator - http://osmocom-analog.eversberg.eu/docs/

matesimulator [options] <fillinpercent>