This report describes research into the problem of rectification
of sound recordings made under adverse conditions and communicated and
recorded with a great deal of noise. In the course of this research,
a number of refinements have been made to the process of digital speech
synthesis through new vocoder techniques.
The particular case under investigation was that of old, noisy
recordings of a singing voice and the immediate goal was the separation
of that voice from wide band noise, orchestral accompanyment and
recording noise. This has been accomplished by the development and
refinement of the homomorphic vocoder as a filtering device.
University of Utah
Rectification; Homomorphic vocoder; Digital speech synthesis; Filtering device;
Sound recordings; Electronic noise; Vocoder;
Miller, N. J. (1974). Removal of noise from a voice signal by synthesis. 1-84. UTEC-CSc-74-013.
University of Utah Computer Science Technical Report