14 Jan
2010
14 Jan
'10
7 a.m.
On Thu, Jan 14, 2010 at 10:20:57AM +0100, Arnold Krille wrote:
Maybe the 64bit is better at calculation and -230dB
are not yet good enough to
avoid denormals. What if you change that code to add a bit more offset?
The code adds 1e-10f (-200dB) to the input of the first
delay element in a 2nd order allpass filter. How much
of this remains at other points depends on the filter
parameters, but it won't go much below -230dB. And that
is giant overkill already. Denormals for 32-bit FP are
below -750dB.
Ciao,
--
FA