> But if that conversion were to floating point rather than fixed
> point data, and then converted to fixed point after the attenuator,
> that would seem to be a valid way to get the signal in the right
> gain range for storage in a file.
Flawn,
The original floating point spec was to compress the signal down to 8
bits - three FP, four signal and one parity bit. That was a bit crude
and when 16 bit became practical, better compression algorithms became
available like MP3.
I'd like to know more about digital mixing, but with lots of bits
available, I presume you are saving mixing data along with the
original signal coding. A recorder with this facility wouldn't need
any input volume controls, but that almost applies now to 24 bit
recording which theoretically has a 120dB signal to digital dither
range. (24 bits minus parity bit minus 3 bits LSB dither)
David
David Brinicombe
North Devon, UK
Cogito cogito ergo cogito sum - Ambrose Bierce
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