On Jan 15 2011, f...@kokkinizita.net wrote:
That means you are using the filter coefficients (_c1..._c4) as
computed by prepare() for 96 kHz also at 192 kHz. That won't work.
Try this as the input to prepare() for 192 kHz:
Yep, ran it at 96k first so the filters were initialized to that, then
changed the sample arte to 192 (I'm working in Bidule)
float Allpass22::quad192real [4] = { 41.0f, 4.00f, 5.80e3f, 3.44f };
float Allpass22::quad192imag [4] = { 157.0f, 3.65f, 19.00e3f, 3.21f };
Should be within +/- 5 degrees over the audio band.
Yep, -3 degrees at 20 HZ, little bit more variance higher up but seems to
be within the +/-5 degrees.
When I find the time (that is after having finished the complete
rewiring of the Sala dei Concerti, written my LAC2011 paper, sorted
out some troubles with the Belgian tax authorities, and done some
work on other projects)
Sounds familiar :-)
I'll try a 6th order version wich should
be somewhat easier to optimise for arbitrary sample rates. :-)
Excellent....
Best - Dave
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