Hi. After having worked in the field of musicdsp quite some years, there
is still one mysterium left: phase shift. The actual task at hand is to
estimate the frequency-dependent latency of an LTI filter. For a bunch
of filters (i.e. butterworth LP) it works rather well by just calling
Matlab's
my understanding is if different frequenices are delayed by different
*time* then you have dispersion. in this sense the group delay as a
function of frequency can be written as an average group delay
(non-negative if causal) plus a zero-mean item characterizing
dispersion, so that if this item
evaluating group delay centroid from local frequency
bands, but I'm not sure of a theory that supports doing so.
xue
-Original Message-
From: music-dsp-boun...@music.columbia.edu
[mailto:music-dsp-boun...@music.columbia.edu] On Behalf Of Andreas Beisler
Sent: 18 March 2011 14:45
To: music
When I wrote my very first sound recording application, I encountered
the very same issue. The problem was that I didn't write asynchronously
to the disk (that is in an extra thread).
Make sure that you don't write the buffer to disk in the audio thread or
dropouts might occur occasionally.
The artifacts are very prominent in the tail end of the truncated file.
I don't understand how you cannot hear it. Must be covered by the noise
floor of your sound card's converters.
Andreas
On 2/5/2015 1:55 PM, Didier Dambrin wrote:
I couldn't hear any difference (through headphones),
