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tuneit -- A simple command-line instrument tuner for ALSA and JACK

Introduction

Tune-It is a very simple command-line based instrument tuner for Linux.

It uses two different algorithms for pitch detection. By default, a simple and fast Schmitt Trigger based algorithm is used to detect the fundamental frequency of an instrument. For better and more reliable results, there is an alternative FFT based algorithm which is much more CPU intensive.

As audio capture backends ALSA and JACK are supported. By default, tuneit will try to use the hw:0,0 ALSA device.

Options

tuneit [OPTIONS...] [captureDevice]
Valid options:

        -f              Use the more CPU intensive FFT based algorithm
        -i              List available input ports and exit
        -j              Use JACK as the audio transport system
        -l LATENCY      Measurement window size in 1/N seconds (default is 10)
        -r RATE         Set desired ALSA sample rate (default is 48000)
        -t HERTZ        Tune the A note of the scale (default is 440.0)

-- Mario Lang <mlang@delysid.org>