Erik Hofman wrote:
Timothy Miller wrote:
On 4/3/06, Justin Findlay <[EMAIL PROTECTED]> wrote:
I'd say more than 24, perhaps 32 bits per channel.
Ok. I thought about saying 32, but I didn't want to look absurd. :)
32 bits is absurd. If it works, it would do an excellent job of
digitizing the noise of the input buffer amp.
Internally you would have to use 32-bit floating point values,
Why? If you are going to have over 16 bits of output, 64 bit integer
math would be just as good and it would be faster. With 16 bit output,
32 bit integer should be sufficient.
everything else will be obsolete rather soon. 24-bit D/A conversion
would be nice and 32-bit D/A converters would be great.
Note that 32 bit float is NOT 32 significant bits.
I am having trouble seeing 24 bit. 24 bit is 144 dB dynamic range and I
doubt that you could possibly get over 110 dB with an analog circuit.
Even 20 bits is 120 dB dynamic range so I think that 20 bits would be
the limit since any more would just be lost in analog noise. Even
subtracting 6 dB for the sign you still have 114db which is more than
most any analog audio.
Or forget about an internal D/A converter all together and use digital
output only.
But where is the DAC? Would it have a good enough filter?
--
JRT
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