On 17/01/2011 05:50 PM, Darren New wrote:
> scott wrote:
>> In general more power means you have more possibilities to do stuff to
>> increase the quality.
>
> Or, more bitrate means more switching means more power. Running a DAC at
> 22KHz is going to take lots more power than running it at 8KHz.

For decent speech transmission, you apparently need a spectrum that goes 
up to about 4 KHz. That means at least 8,000 samples per second.

A CD-quality digital signal is 44,100 samples per second. That's only 
about 5x higher. Are you seriously telling me it takes 5x the power to 
do that?

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