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Comp.dsp is a worldwide Usenet news group that is used to discuss various aspects of digital signal processing.
There are 9 threads in our archives.
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The threads with the newest articles are listed first.
zero lag Butterworth filter
adamchapman - 2010-01-25 15:55:00
Im trying to implement a zero-lag butterworth Filtert as described in
tha paper at
http://www3.uta.edu/faculty/ricard/Grad%20Biomech/Pezzack/Robertson%20(2003)%20Design%20and%20responses%20of%20butt...
PID Autopilot for landing
adamchapman - 2009-10-02 15:03:00
Hi,
I remember when I was at university in a lecture on PID controllers,
the lecturer mentioned a way that an autopilot can tell the aircraft
is on the ground, using nothing but a PID loop with v...kernal density estimation function notation
adamchapman - 2009-08-28 07:29:00
Hi,
I'm trying to implement the mean shift algorithm on page 18 of
http://hal.inria.fr/docs/00/17/10/38/PDF/RR-6282.pdf .
H is a diagonal matrix when you're using more then one dimension.
...log energy of audio frame
adamchapman - 2009-06-11 13:43:00
Hi,
sorry to post 2 questions in the same day but Ive been searching all
day and got nowhere.
Im trying to compute the log energy of an audio frame. I am aware that
the result of my calculatio...formant frequency vs. fundamental frequency
adamchapman - 2009-06-11 08:35:00
What exactly is the difference between the fundamental frequency of a
sound and the first formant frequency?
To me they look the same
...dimensions of multivariate gaussian
adamchapman - 2009-02-12 19:03:00
hello,
I'm trying to construct a Gaussian Mixture model (GMM) from data with
n dimensions.
A multivariate Gaussian is described with:
b=(1/(((2*pi)^(D/2) * sqrt(det(sigma)))) * exp(-0.5*(x...logarithmic power spectra looks ridiculously high
adamchapman - 2009-02-06 16:45:00
Hello,
I was reading this paper (http://www.kecl.ntt.co.jp/icl/signal/
nakatani/papers/icslp2002f0.pdf) and thought his Power spectra looks
ridiculously high.
using 10*log10(S) for the log pow...Ripple Enhanced Power Spectrum (REPS)
adamchapman - 2009-01-22 11:30:00
Hi,
I'm trying to obtain the REPS for some audio data, but it's proving
quite difficult.
The link at
http://books.google.co.uk/books?id=7yJXMJUw03oC&pg=PA253&lpg=PA253&dq=reps+%22ripple+enhanc...Time derivative of Blackman window
adamchapman - 2009-01-15 06:29:00
Hi,
I've made a Blcakman window in Matlab with the code:
windowWidth=256;
Window=(0:windowWidth)/windowWidth;
Window=0.42-0.5*cos(2*pi*adaWindow)+0.08*cos(4*pi*adaWindow);
This looks fine w...