Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Vocoder carriers consisted of two commonly used control carriers (sine tones and white noise) and harmonic complexes with identical long-term magnitude spectra, only differing in component starting phase
| Carrier | Frequencies | Symbol | Phase of nth component |
|---|---|---|---|
| Sine | Filter center frequency | S | 0 ° |
| Noise | White noise | N | N/A |
| Harmonic complexes | 240 equally weighted sine harmonics with 100 Hz fundamental | H0 | 0 ° |
| H90 | Random 0–90 ° | ||
| H360 | Random 0–360 ° |
