ABSTRACT
The actual circuitry and logic behind a digital reverberation device is very complex. It must be enough to say that the digital signal is fed into a large number of memory stores. In fact there are very satisfactory digital reverberation units which cost little more than a respectable domestic compact disc player. Digital pulses can be compressed in time and restored to their original spacing later. The digital audio is processed to a 10-bit sample, which may not seem very good, but there is a companding process which makes the overall result more like a 12-bit system. The digital signal is made up of 80 bits which contain information about the time in hours, minutes, seconds and frames, which in the UK and most of Europe are twenty-fifths of a second. Spring devices could be cheap and compact but they tended to have a 'twangy' quality.
