This report describes a series of subjective tests made to discover whether instantaneous companding could profitably be applied to a pulse-code-modulation system designed for high quality sound ...
Pulse code modulation for high quality sound distribution: Quantizing distortion at very low signals
In PCM systems, distortion of very low level signals is known to occur, and in high-quality programme distribution it is the most objectionable signal degradation caused by this kind of system. This ...
The feasibility has been investigated of applying PCM to the distribution of stereophonic programmes of the highest broadcast quality in time-division multiplex. By this means all the programmes ...
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