search for: 4000hz

Displaying 7 results from an estimated 7 matches for "4000hz".

Did you mean: 1000hz
2005 Jan 13
0
autocorrelation and levinson-durbin
...cally 50-440Hz) and one additional peak per 1000Hz. From this we can see that the best order for an LPC speech model is based upon the bandwidth of the sampled audio. In speex linear prediction is used to model the vocal tract of the speaker. For narrow-band mode we low-pass filter the speech to 4000Hz. Using our knowledge of speech we choose a suitable model of 5 poles (1 pole for the fundamental frequency and 4 poles for the vocal tract). Since each pole requires 2 coefficients we arrive at 10 LPC coefficients. For wide-band speex in addition to the above model we also high-pass filter the s...
2009 Oct 11
1
About Speex
...s Pedro Velez, I'm a student working on the "analysis of a compression codec for estethoscopic sounds to be transmitted over IP networks" for my thesis project. I would like to know if this codec would be suitable for this kind of application since these kind of sounds can reach up to 4000Hz. If so, I would like to cite and recommend this codec for further research and use in my university. I hope I can get a response to this question. Sincerely, Pedro
2008 Nov 11
7
music on hold
hii guys: i get the message from the asterisk: Started music on hold, class 'default', on Local/s at skype-web-callback-dial-263to263-1775,1 [2008-11-11 14:32:41] WARNING[1781]: format_wav.c:156 check_header: Unexpected freqency 11025 [2008-11-11 14:32:41] WARNING[1781]: file.c:322 fn_wrapper: Unable to open format wav [2008-11-11 14:32:41] WARNING[1781]:
2007 Feb 05
3
Speex and RTP
> I believe there is new resampling functionality in the speex svn head, > although I haven't tested it yet. You might also want to check out > 'Secret Rabbit Code' for your resampling. Yes, I've just been working on a resampler recently. Its changing a lot, but it's now usable. I'd actually be quite happy to have some feedback on it. Jean-Marc > Hope this
2004 Apr 10
4
Woodpeckers Revisited
Just when I thought I couldn't be wrong, I was wrong. We have woodpeckers that drill into the arial telephone cables, and water seeps through the holes and partially grounds the tip and/or ring wires causing hum. I thought the hum/buz on my lines was a telco problem. The Qwest HQ noise team assures me that my lines are within spec. Sure enough, when I listen on the test set the lines
2015 May 16
5
[Bug 90482] New: Xorg take 100% CPU when using multiple independent screen configuration
https://bugs.freedesktop.org/show_bug.cgi?id=90482 Bug ID: 90482 Summary: Xorg take 100% CPU when using multiple independent screen configuration Product: xorg Version: unspecified Hardware: x86-64 (AMD64) OS: Linux (All) Status: NEW Severity: normal Priority: medium
2015 Apr 05
3
Nouveau kernel module exhausting CPU
Hello I recently switched from Nvidia binary driver to Nouveau. I have encountered a possible bug in the kernel module. Before I file a bug report I would like to know if this is a known issue or not. I believe it is related to sleep state and power management of the driver. The Bug: When the computer is left on it's own to go to a power save mode X takes 100% CPU-time in its thread. A