similar to: how to fix high freq noise?

Displaying 20 results from an estimated 3000 matches similar to: "how to fix high freq noise?"

2009 Jan 08
2
how to fix high freq noise?
Hi Jean-Marc, Thanks for the quick response! I am resending this mail hopefully in plain text. The following three version have been tried and all of them have the high frequency tones. speex-svn-14525 speex-1.2rc speex-svn-15540 I've isolated this down to the Speex encode/decode by sending silence (i.e. all zeros) to the encoder and displaying the decoder output in addition to
2008 Feb 22
1
Re: Problem with Blackfin assembly optimizations -- bug in fixed_bfin.h / resampler saturation???
Hi Jean-Marc, after some problems with getting svn to work here I finally made it. Problem is, you write that I cannot use libspeex and libspeexdsp at the same time now -- because I use a "live" system (mic-in -> speex_enc -> speex_dec -> headphone out) and I can run the AD1836 audio codec on 48 kHz only, I cannot use my program now (because I use speex resampling...) So I
2008 Mar 05
1
Problem with Blackfin assembly optimizations -- bug in fixed_bfin.h / resampler saturation???
Jean-Marc, Frank, I have stumbled across a similar situation regarding optimization. I seem to have a similar setup as Frank does with a fixed 48khz in and out. The wideband mode and ultra-wideband modes are really what I?m looking for. I have a test application that reads audio, downsample to 16kHz (or 32kHz), speex encode, speex decode, upsample back to 48kHz, and playback. If I remove
2009 Aug 03
1
Does VBR work for speex in non-float platform now?
Hi All, We are using speex for linphone in blackfin fixed point platform. The speex version we are using is svn-14525. If we don't disable vbr by "--disable-vbr", the sound quality will be very bad in linphone. But if we disable it, sound will be perfect. I noticed in the speex.org, there is a comment like this: > >Speex 1.2beta3 is out >December 11, 2007 >The most
2003 Mar 11
8
SIP registration
I have a test SIP account set up with WorldCom and I have been trying to have Asterisk register to the WorldCom server with no luck. It appears that the SIP headers are different coming from Asterisk. I have included a packet capture from a successful login with a Windows Messenger client for reference. I have also copied in the SIP packet I captured with sip debug turned on. In my sip.conf file,
2003 Dec 31
3
Java?
We needed the client browser to be open all the time for dynamic data to load without the page refreshing. After looking at all of our options we decided on programming it ourselves using flash rather than java. We have a flash frontend thats tied to our backend mysql DB. We use it for loading web site traffic data, email opens, click-throughs, bouncebacks, stats, etc. It could also be used with
2003 Apr 15
1
dialed number notify at invalid dial situation
Hi all Now I'm making IVR sequance that is customised [mainmanu]. I wish to notify invaid command like a following exten => i,1,playback('your command is ...') exten => i,2,playback(${EXTEN}) ; <---- Say 'i' oops! ;-( exten => i,3,playback(' is incorrect! please again ') # This exten lines are figure for instruction. # I know to use with gsm filename.
2008 Jan 07
1
Problem with Blackfin assembly optimizations -- bug in fixed_bfin.h?
Hello everybody, I'm currently trying to run speex on the Blackfin (BF-537) STAMP evaluation board unter uCLinux. Using 1.2 beta 3, I encountered problems when activating the Blackfin assembler optimizations. Without optimizations for blackfin, i.e. calling ./configure --enable-fixed-point --host=bfin-uclinux everything seems to work fine. But when I add the --enable-blackfin-asm flag to
2008 Apr 15
2
dialed number notify at invalid dial situation
Originally posted by: mailto: Hi all Now I'm making IVR sequance that is customised [mainmanu]. I wish to notify invaid command like a following exten => i,1,playback('your command is ...') exten => i,2,playback(${EXTEN}) ; <---- Say 'i' oops! ;-( exten => i,3,playback(' is incorrect! please again ') # This exten lines are figure for instruction. # I
2007 Oct 16
2
Blackfin port on Visual DSP, Michael Shatz ?
Hi, I'm using the Speex codec on my Blackfin-based board, and plain-C performance is pretty poor. Decoder is OK (something 25 MIPS for wide-band). But Encoder is not (wide-band quality 8, complexity 1): - 162 MIPS with Analog-Devices lib - 128 MIPS with 1.2beta2 (faster but not working) I don't worry that much, as it's not the optimized version, and everything is running in SDRAM.
2003 Apr 17
3
mpg123 hangs on close, but plays fine.
I am running Asterisk CVS-04/16/03-18:57:13, and mpg123-0.59r It all sounds great and it plays at the correct pitch and speed. However at the end of the file it simply does nothing. It does not go on the the next step in the extension.conf nor does it hang up. It just sits there. During play I have two processes running for the mp3 stream: root 6300 6299 8 22:32 ?
2008 Feb 12
1
Re: Problem with Blackfin assembly optimizations -- bug in fixed_bfin.h / resampler saturation???
Hi, when I compile with FIXED_DEBUG enabled, I get an error -- both when make tries to build testenc.o and when I try to link my app against the speex lib: lorenz@panelmaker:~/Blackfin/tests/speex_loopthrough$ make bfin-uclinux-gcc -c -g -I/home/lorenz/include -o main.o main.c bfin-uclinux-gcc -gl -elf2flt -L/home/lorenz/lib -o speex_through main.o -lspeex_debug -lspeexdsp -lm
2003 Mar 01
1
cannot disconnect by callee at first in SIP case
sorry, this problem is fixed by myself. we must need set 'canreinvite=no' each user. --- I'm try to discconect a call with SIP. when caller make a call, 'show channels' result is following. mack*CLI> show channels Channel (Context Extension Pri ) State Appl. Data SIP/mack-1bfc (default 1 ) Ringing AppDial (Outgoing
2005 Oct 25
2
Noisy sound quality with Blackfin in WB-mode
Hello all, I'm testing the Speex codec for my diploma thesis on a BF-533 Blackfin under uCLinux (2005R3 RC3 release). I successfully compiled the Speex (1.1.11-svn) and I can encode/decode wav-files on my STAMP-board using the speexenc/speexdec sample apps. But I encountered that the decoded file sounds strange/noisy, when compiling with "--enable-blackfin-asm" +
2007 Jun 13
2
Blackfin inline assembler and VisualDSP++ toolchain
Hi Jean-Marc I'm trying to integrate your speex codec on our custom Blackfin board. The board is not uCLinux compatible and there is no chance that it will ever be. I am using ADI-supplied VisualDSP++ IDE and corresponding toolchain. As long as I am compiling "C"-only version of the library everything is fine. VisualDSP++ produces working library. There is only one not so minor
2005 Nov 05
2
Noisy sound quality with Blackfin in WB-mode
Hello Jean-Marc, > Got any luck with the Blackfin stuff? One thing I forgot mentioning that > would probably help a lot in narrowing down the bug is to simply disable > assembly functions one by one and see which one breaks Speex. sorry that I didn't reply for some days. Unfortunately I had some other serious problems with my software which are not related to Speex. I hope to solve
2005 Sep 29
2
Compiling libspeex for Blackfin
Hi all, I'm trying to run speex on the Blackfin processor. I'm not familiar with programming/compiling/linking at all, but I guess the first thing I need is libspeex compiled for Blackfin, so that my program can use the library functions. I've downloaded the source files (version 1.1.10) from www.speex.org and I've been trying to compile libspeex from within VisualDSP++, but it
2008 Feb 05
1
Re: Problem with Blackfin assembly optimizations -- bug in fixed_bfin.h / resampler saturation???
Hi, I just started to examine the DIV32_16 function (Blackfin ASM version), and wondered why the return value of the function inside 'fixed_bfin.h' is of type 'spx_word16_t', but the local variable 'res' which is returned by this function is of type 'spx_word32_t'. Is this a trick of optimization or a bug? (Same question for PDIV32_16 and MAX16, too!) best
2008 Feb 08
1
Re: Problem with Blackfin assembly optimizations -- bug in fixed_bfin.h / resampler saturation???
Hi, I tried to figure out what the problem is -- but it seems to be totally different from what I expected. My status at the moment is: - computing results for "generic" and "Blackfin ASM" versions of the DIV32_16 function are the same, there is no "algorithmic bug" - Instead, there seems some sort of memory corruption: When I comment out the DIV32_16 function
2005 Oct 26
2
Noisy sound quality with Blackfin in WB-mode
Hi Jean-Marc, > Can you confirm I'm understanding everything correctly? You encode > with > the same encoder and then decode with either A) blackfin assembly and > fixed-point or B) fixed-point only on Blackfin. Then A) sounds bad and > B) sounds good. If you do the same in narrowband, it sounds OK. Is > that > correct? If that's the case, it's *probably* some