I googled a bit, but couldn't find any good apps that help assist in the testing of an audio device (like an MP3 player). I would like to test the THD and the SNR of the device. Are there any good ...

Designing total-harmonic-distortion (THD) measurement into a system usually involves a notch filter and a broadband ac measurement. The problem with this technique is that it measures both THD and ...

The author is technical publications manager and a senior technical writer at Audio Precision in Beaverton, Ore. When reduced to its basics, the process of audio test and measurement is concerned with ...