SPEECH BANDWIDTH COMPRESSION SYSTEM (SCANNING FILTER)
Abstract
Progress is reported on a time-frequency scanning speech compression system. A statistical investigation was made to determine the scanning waveforms based upon articulation scores for selected zero crossings. Experimental results are described for the probability density of pulse period for infinitely clipped speech. Experimentation on reconstructed speech showed definite improvement in articulation using an auto-vox for reverberation. The construction of the over-all system was completed with the exception of narrow-band pass filters. Tests on the system for single side-band transmission were made to observe any deterioration of the signal. The results of articulation scores as well as sound spectrograms showed no distortion in transmission. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 30, 1961
- Accession Number
- AD0260048
Entities
People
- A.p. Albanese
- B. Zivatofsky
- L. Zolotnitsky