22 Jul
2007
22 Jul
'07
6:44 a.m.
On 21 Jul 2007, at 13:56, Dan Mills wrote:
Well, I'd qualify that as there's no need to use doubles between
modules, there are many DSP processes that work better in double if
you can afford the extra memory bandwidth. Filters are one.
It's generally not doubles in the audio path though, but its things
that you're using to modify it, coefficients, phase accumulators and
so on.
- Steve
And more generally: are there common rules for
keeping sound
quality intact? I mean
only format-related probable issues rather hardware issues like
jitter and such.
Be very careful how you write float->int conversions (it is not
trivial), and work in floating point as far as is possible, there is
little reason (other then marketing) to move to doubles (IIR filters
possibly excepted).