Audio non-linearity: A comb-filter method for measuring distortion
Abstract
A new method of measuring nonlinear distortion of sound signals is described. This method uses a test-noise signal, based on a pseudo-random sequence and occupying most of the audio band, in conjunction with comb-filter techniques to measure distortion over a wide frequency range; it gives better correlation with subjective test results than the conventional total harmonic distortion method.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- May 1976
- Bibcode:
- 1976STIN...7627446B
- Keywords:
-
- Nonlinearity;
- Signal Distortion;
- Audio Frequencies;
- Harmonic Analysis;
- Parameterization;
- Radio Filters;
- Communications and Radar