[PD] Relative Db measurement

Andy Farnell padawan12 at obiwannabe.co.uk
Tue Dec 19 13:24:01 CET 2023


Folllowing up on Chris's question; has anyone done much calibration for
more scientific projects like audiometry? I'm quite interested in ways
of measuring and, if needed, slightly rescaling to get accurate
dBV (analog domain signals) assuming a decent sound DAC,
good holiday wishes
a.




On Sat, Nov 04, 2023 at 04:13:15PM +0800, Chris McCormick wrote:
> Hi,
> 
> Hopefully this elementary audio question is not too stupid.
> 
> If I have some signal source how I can I measure the relative change in Db
> when some change is made to the signal? E.g. if I have an [osc~ 440] going
> into a [*~] and I change the multiplier, how can I measure the output from
> that and determine relative change in Db when I change the multiple?
> 
> Also does this even make sense on Db scale?
> 
> Thank you!
> 
> Cheers,
> 
> Chris.
> 
> 
> -- 
> https://mccormick.cx/
> 
> 
> 
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