The Panasonic VP7722A Audio Analyzer is a measuring instrument with functions to measure ten items including the frequency, level, distortion, S/N ratio, and signal average. One feature of the instrument is the measurement of distortion factor. The true distortion below the noise level which cannot be measured by conventional distortion meters can be measure using the digital signal processing techniques. This instrument can also perform a harmonic analysis for making it easy to measure extremely low distortion factors.
