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Beeps

A program for generating soundtracks of recurrent beeps.

Beeps

The following beeps can be heard:

  • Pairs of recurring beeps every 15 seconds. A high pitch beep immediately followed by a low pitch beep marks the transition to a 15 second period filled with 3 second interval beeps. A low pitch beep immediately followed by a high pitch beep marks the transition to a 15 second period of silence.
  • Beeps at 3 second intervals only heard during every other 15 second interval starting with the first interval.
  • Double chirps at 5 minute intervals overlapping with the period transition beeps.
  • A final set of wind-down beeps at the end of the specified duration.

This is useful if you have a task you need to repeatedly do for the duration of 15 seconds at a rate of one every 3 seconds with breaks of 15 seconds to do a different task. For example some kind of physical exercise.

The 5 minute chirps indicate progress through the track.

The final wind-down beeps let you know when you should stop.

Usage

Use cargo build or cargo build --release to build the program. Optionally it can be installed system-wide using cargo install --path ..

Run beeps 300 for a roughly 5 minute track (additional time required for initial beep and wind-down beeps). The program will output an 8 bit unsigned 8kHz PCM track. This can be piped directly into a program like aplay or converted into other formats.

The provided GNUMakefile (which depends on GNU Make and makes use of the oggenc and lame programs) can be used to produce Ogg Vorbis (target ogg) or MP3 (target mp3) files containing tracks of 5, 10 and 15 minute duration.

Samples

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