Activating the generator in the left column will produce a sine wave at a random frequency, which is not visible at first. Click "REVEAL FREQ." below the generator to make the frequency of the sine wave visible.

Activating the generator in the right column will produce a burst of linear-filtered white noise centered on a random frequency and with a percent-linear-variable notch width. As with the left column, click "REVEAL FREQ. RANGE" below the generator to show the filter center frequency and its approximate notch width, expressed in Hz.

As they are generated with separate random functions, the sounds are independent and do not correspond to one another.

More features, including ADSR testing, wave shaping, and a way to keep track of user performance, will be added in future versions.

Traditional music education too often neglects timbral aspects of ear training. Audiences increasingly experience music through electronic media, and even in live events an array of electronic filters and amplifiers intervenes between the musician and the listener. For a contemporary musician to remain in control of the sounds they create both on recordings and in a live setting, they must develop quick apprehension not only of pitch class/rhythm/harmony but of the octave band, attack/decay time, wave shape, and contribution of white noise components of every sound. It is my hope that this small application will make timbral ear training easier.

Good luck in training.

BEEEP BEEEP/WHOOOSH WHOOOSH,

Chad R. Matheny

Berlin, 23.NOV.2017