search for: hisses

Displaying 20 results from an estimated 84 matches for "hisses".

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2003 Apr 14
1
S100U hissing noise..
Hi, I have got a hissing/humming noise on my handset that is connected to the S100U USB device.. I was running a CVS version of * that was about 2 to 3 weeks old and had perfect quality.. But that HDD died on me so I reinstalled and used the latest CVS, now I have this sound that is best describes as a similar sound to the noise a cpu fan makes.. Like a high piched hissing noise.. Any one
2014 Aug 10
1
High Frequency Hiss with Opus at 48 kbit/s
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi to everybody. First of all I hope this is the right place to discuss such an (nitpicky) issue. I've just been testing the current Opus release and for mere curiosity compared its performance to WMAPro with CD quality music at low bitrates (48 kbit/s). While Opus generally does a very good job, I found one particular example (a high pitched
2011 May 03
2
Multiple cards using same IRQ - getting IRQ errors and hissing
I am running Asterisk 1.16.2.13, dahdi 2.4.0 and libpri 1.4.11.4 on an HP ML110 G6 using Ubuntu Linux 10.04 LTS. I have two Digium TE121 single T1 port cards and a Digium AEX800 8-port FXS card. All PCI Express cards. Co-workers are hearing hissing sounds on some calls, and I am getting IRQ errors when running "dahdi show status". I see that sharing IRQs for Digium cards isn't
2003 Jun 09
2
Underwater in 10 - 20 seconds
I'm running a X100P connected to a POTS line and a TDMP400P w/ two FXS daughter cards. Both calling out from one of the FXS phones (internally) or calling my home number (externally) the FXO card starts to freak out. By freak out I mean I can still hear but it sounds like you are underwater, there is an annoying hiss or buzz on the line as well. If I hang up and pick up another house phone
2005 Jul 19
1
Re: ices2 "crashes" respectivley produces hissing
On 7/18/05, Christian Leitold <linux@leitold.info> wrote: > I've just found out the problem also occurs when using darkice instead > of ices2. Therefore, I guess that icecast2 is actually responsible for > this strange behaviour. This couldn't possibly be icecast's fault - icecast itself doesn't, and can't, do any processing of audio. Given that it happens with
2005 Jul 18
4
ices2 "crashes" respectivley produces hissing
Hello list! I've recently installed icecast2 and ices2 on my Debian Sarge box, to stream some musik for my local network. Basically, it just runs fine, using my soundcard / ALSA as audio source. Unfortunately, there is one BIG problem: after a certain amount of time (varies, can be a few minutes up to an hour or so), ices2 just "crashes", thus producing a terrible noise on the
2001 Jul 14
3
Some very early RC1 results
Hi all, I started testing the RC1 encoder at ftp://sjeng.sourceforge.net/pub/sjeng/oggdrop.exe (based on branch_monty_20010708) On the songs I have tested so far (not much :) I did not hear any stereo issues, but there are some very noticeable problems with the produced files. Songs without much high-end will suddenly have one when encoded. (you'd expect it the other way around) It
2004 Aug 06
2
Way to measure loss of quality
2 things, first an idea... next a question. QUALITY MEASUREMENT IDEA: I find it difficult to hear 2 voice samples and tell which is nearer the original, especially if the background hiss is slightly different. So what if you actually subtract the post-compression sound from the original and then listen to the DIFFERENCE. If you can't hear any voice except background noise and some hiss from
2001 Aug 14
1
udial.wav problem
I was doing some testing with RC2 and I noticed that RC2 doesn't encode past 19kHz with this clip (-b256 and -b350). There are no problems with this clip like it was before, but this clip contains signal past 19kHz which is audible as a faint high-frequency hiss - and that hiss is gone in the encoded file since RC2 cuts off at 19kHz. I think that -b256 and -b350 should encode at least up to
2004 Sep 06
1
added background noise problem?
Using narrow, wideband, and ultra-wideband encoding on a short 16khz wav gave .spx's of 3,789 ... 2,935 ... and 1,875 bytes. Even after reading the manual, smaller files for the higher frequency encoding seems counter-intuitive. My mp3 at 32 kbps on the original 22khz wav is 3,866 with a quality comparable to speex wideband on the converted 16khz wav, so speex is a 24% improvement in size.
2005 Feb 09
2
Any reliable command line clients?
...the sake of stability or audio quality, I will. I haven't found anything yet that meets all these. Here's what I've tried and the results. ogg123: The obvious choice. But it can't seem to do it for long. After several hours it begins to get a very repeatable pattern of quick hisses. Usually pairs of two, the first one long, the second short. Perhaps every 2 to 3 seconds. Also, I notice that the buffer keeps decreasing as it plays. I've tried with multiple sound cards just in case it was a sound card clock inconsistency, but it does the same thing in both cases. zi...
2005 Mar 02
1
General pre-processing prior to feeding sound to speex.
Hi, I have speex running as a part of a voice conferencing app. Well, one under development anyway. I'm running VBR at quality 3 and get a "hissy-squelchy" background noise. This is fine, kinda, because the internal microphone in the laptop picks up hiss, the sound of the (actually very quiet) hard drive and generally speaking is of less than exemplary quality. To help
2004 Aug 06
1
Way to measure loss of quality
I think you misunderstood my quality measurement idea. I mean if you subtract the original and the one after, the LESS voice that is less over or the LESS you can tell when someone is speaking, the better the compression. This is still subjective but I think its easier to tell this way because its easier to tell how much voice is remaining than to tell how much the compressed voice is missing from
2003 Jul 09
2
Music on hold quality..
Hi, Does any one have any pointers on improving moh quality?? Symptoms are crackling and hissing as the sound comes and goes.. I installed mpg123 this morning.. I have tried various MP3's sampled at 160k, 128k, 32k and 8k and they all sounded terrible... The PC is a P4 so its got plenty of processing power.. I have tried a few different types of classical music (Piano, Violin and full
2006 May 23
2
Are my expectations too high?
I'm trying to use Asterisk with a TDM400P and 2 analog lines, but I'm having a hard time getting the kind of audio quality that I'd like. I'm hoping to be able to use SIP phones to make calls through Asterisk and have the same quality as a regular analog phone connected to the PSTN. Are my expectations too high? Is it that once I'm using Asterisk as a gateway to the PSTN, I
2003 Jul 07
1
Problems with TDM40P
Heya all, I'm experiencing some problems with a TDM40P and was wondering if anyone else on this list has similar experiences, or maybe even a possible solution. My setup is a dual PIII-750 with 1 gig of RAM, with an X100P, connected to an analog line to my telco, and a TDM40P with analog phones connected. The TDM-card is not sharing any interrupts, but the X100P is, with the 2 Adaptec SCSI
2003 Apr 15
5
S100U on RH9
Hi, I have been trying to figure out why the S100U is not performing very well on RH9.. Here is my thinking..( may be totally wide of the mark but here goes anyway) I remember reading somwhere that the sound system used by RH has changed... Does the S100U not depend on the sound subsystem?? So what I think is that the sound subsystem in RH9 and the S100U are not happy working together.. Does
2004 Aug 06
0
Way to measure loss of quality
> QUALITY MEASUREMENT IDEA: > I find it difficult to hear 2 voice samples and tell > which is nearer the original, especially if the > background hiss is slightly different. So what if you > actually subtract the post-compression sound from the > original and then listen to the DIFFERENCE. If you > can't hear any voice except background noise and some > hiss from
2004 Dec 29
1
Strange speex behaviour
Hi, After trying to use the prebuilt Windows 1.1.6 binaries I've founded that the DLL version doesn't export the mode variables properly, this could probably easily be fixed. Anyways, as for now I've downloaded the 1.1.6 source and built it myself and I'm linking speex statically to my application. I've written an experimental software which just packs 20 ms frames and sends
2003 Dec 22
0
Festival sounds like a steam engine
I tried running the festival app today with little success. I have a working festival installation that does TTS to the linux sound output perfectly. With * it just produces a sort of hissing sound. The length of hissing is proportional to the length of text string that it is given to speak. Since I'm running on a PPC system I fear the dreaded endian problem is to blame and that