[sdiy] tempco puzzle

[Andre Majorel]

On 2002-10-01 15:27 +0100, Seb Francis wrote:

> What would you say the target "smallest noticeable difference"
> would be for a perceptive human?  Paul Perry suggested 1dB, but
> does this also depend on the actual volume?

It somewhat depends on volume and frequency (see the
Fletcher-Munson curves). I don't known the exact figures but an
error of 1 dB over 10°C seems quite acceptable in a synth
application. Errors could cause trouble if the output level is
not just a matter of loudness (E.G. the VCA output is used for
linear FM), or if the error causes clipping.

-- 
André Majorel <URL:http://www.teaser.fr/~amajorel/>
std::disclaimer ("Not speaking for my employer");