[sdiy] move over you 32 bit DACs ...

[Vladimir Pantelic]

On 04.02.22 09:21, Mattias Rickardsson wrote:
> You're right, 64-bit is overkill after all. 
> 32-bit μ-law will do.

or maybe part mantissa, part exponent?


> Den fre 4 feb. 2022 00:46Ben Bradley via Synth-diy
> <synth-diy at synth-diy.org <mailto:synth-diy at synth-diy.org>> skrev:
> 
>     I want to see the microphone/transducer that picks up 194dBSPL with
>     any reasonable degree of fidelity.
> 
>     On Thu, 3 Feb 2022 at 17:48, Mattias Rickardsson <mr at analogue.org
>     <mailto:mr at analogue.org>> wrote:
>     >
>     > True, Harry!
>     > And mono will do... So why is it stereo?
>     >
>     > /mr
>     >
>     > Den tors 3 feb. 2022 22:10Mr&MrsAccount <hbissell at wowway.com
>     <mailto:hbissell at wowway.com>> skrev:
>     >>
>     >> Yes you will need 64 bits, but only once...
>     >>
>     >> Harry
>     >>
>     >>
>     >> ________________________________
>     >> From: Mattias <mr at analogue.org <mailto:mr at analogue.org>>
>     >> To: Brian <brianw at audiobanshee.com <mailto:brianw at audiobanshee.com>>
>     >> Cc: Synth <synth-diy at synth-diy.org <mailto:synth-diy at synth-diy.org>>
>     >> Date: Thursday, 3 February 2022 3:52 PM EST
>     >> Subject: Re: [sdiy] move over you 32 bit DACs ...
>     >>
>     >> Brian Willoughby <brianw at audiobanshee.com
>     <mailto:brianw at audiobanshee.com>> skrev:
>     >>>
>     >>> Speaking of jet engines, I went to an AES talk where someone
>     explained that 24 bits is enough to span the dynamic range from  the
>     softest sound that the human ear can pick up, all the way to the
>     pressure wave (of 2 atmospheres?) a couple of miles from an atomic
>     blast. That convinces me that I don't need to search for a 32-bit
>     DAC, much less a 64-bit DAC.
>     >>
>     >>
>     >> 2 atmospheres... Sounds a bit like you're referring to the
>     loudest possible sound in air, 194 dB?
>     >> 24 bits won't take you to more than 144 dB. And since even 32
>     bits give a futile 192.6 dB, it seems like the next level will be
>     needed: 64 bits. ;-)
>     >>
>     >> /mr
>     >>
>     >
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