Basic usage
The estimated pitch is displayed on a note scale graphic (1). The detected pitch is shown by a small red rectangle, which is surrounded by a bigger red border when the note is in tune (2). Detailed information about the pitch detection are shown on the left (3), with the target note frequency (above) and the detected pitch (below). The note will be found automatically, since the program doesn't require to select the note to tune manually.
The waveform of your instrument is plotted over a time scale of 50 milliseconds (4). The autocorrelation of the audio signal, which is used to detect the pitch, is also displayed (5), together with a red bar showing the estimated frequency (6).
The tuner uses the default audio device, which is shown at the bottom of the main window (7). The desired recording source and the signal recording levels can be adjusted using a sound mixer.