Formats in audio bandwidth processing applications
Edmund U. Cohler, J.E. Storer, R. Borgioli · 2005
For audio/communication/ image requirements a 16-bit floating point format provides a memory-efficient word size for representation and processing. Fixed-point is marginally suitable for representation (recording and reproduction) but has neither the uniformity of resolution nor the dynamic range needed for simple digital processing. An octal floating point format with 13-bit sign-mantissa and 3-bit exponent is shown to be an excellent one for both range and resolution.