search for: flerackers

Displaying 17 results from an estimated 17 matches for "flerackers".

2007 Jul 08
1
Size in samples of a Speex packet
Hi Steve, Steve Kann wrote: > Chris Flerackers wrote: >> Hi, >> >> Is there an easy way to get the size in samples of a Speex packet, >> without decoding the packet? >> >> If I receive a "narrowband packet" with >> - Zero or more wideband frames (must be skipped apparently) >> - Zero or...
2004 Aug 06
1
SPEEX_GET_SAMPLING_RATE of encoder is wrong
...ate=8000; BTW, I saw that my email was added to an existing thread instead of creating a new thread. Sorry about that. Best regards, Chris ----- Original Message ----- From: "Jean-Marc Valin" <Jean-Marc.Valin@USherbrooke.ca> To: "speex" <speex-dev@xiph.org>; <cflerackers@androme.be> Sent: Tuesday, March 30, 2004 1:01 AM Subject: Re: [speex-dev] SPEEX_GET_SAMPLING_RATE of encoder is wrong > Hi, > > Do you get that problem with speex_nb_mode too (or only speex_wb_mode)? > > Jean-Marc > > Le lun 29/03/2004 à 05:35, Chris Flerackers a écrit :...
2007 Jul 07
2
Size in samples of a Speex packet
Hi, Is there an easy way to get the size in samples of a Speex packet, without decoding the packet? If I receive a "narrowband packet" with - Zero or more wideband frames (must be skipped apparently) - Zero or more Speex inband requests - Zero or more user inband requests - One or more narrowband frames I need to know how much samples the packet contains to calculate jitter buffer
2007 Oct 04
1
Wideband bitrate documentation
...ns the right values: E.g. mode 10 Narrowband mode 7 -> 492 bits High band "mode" 4 -> 352 bits Total: ( 492 bits + 352 bits ) x 50 packets/s = 42200 bits/s Can this be corrected/clarified? -- Best regards, Chris ------------------------------------------------------------ Chris Flerackers Tel: (+32) 11 30 13 30 ANDROME NV Fax: (+32) 11 30 13 31 Wetenschapspark 4 mailto:cflerackers@androme.be B-3590 Diepenbeek, Belgium http://www.androme.be
2004 Aug 06
3
Speex settings and jitter
Hi, Is there are document where the interaction between all the configuration options of speex is explained? Speex seems to have CBR, VBR and ABR. You can also use SPEEX_SET_QUALITY (SPEEX_SET_VBR_QUALITY) and SPEEX_SET_BITRATE which I suppose can't be set at the same time. Is there a list of possible combinations somewhere? I also have another question related to jitter. To minimize jitter,
2004 Aug 06
1
Speex bitrate
...--bitrate n option (use bit-rate n or lower) afects the quality and time of the encoding? If I don't use that option how speex determines the bitrate to use in encoding? Thanks in advance Miguel Gomes -----Mensagem original----- De: owner-speex-dev@xiph.org em nome de Chris Flerackers Enviada: qui 18-03-2004 14:52 Para: speex-dev@xiph.org Cc: Assunto: Re: [speex-dev] denoise.c missing from 1.1.4 archive Hi, I was indeed using Visual C++ to compile speex. I made the following changes and now i...
2004 Aug 06
2
SPEEX_GET_SAMPLING_RATE of encoder is wrong
Hi, I'm using speex 1.1.4 and when I query SPEEX_GET_SAMPLING_RATE as in speex_encoder_ctl ( m_pEncoderState, SPEEX_GET_SAMPLING_RATE, &m_SampleRate ); I get 2 The encoder is initialized with m_pEncoderState = speex_encoder_init ( &speex_wb_mode ); On the decoder side, the correct sampling rate is returned: m_pDecoderState = speex_decoder_init ( &speex_wb_mode );
2004 Aug 06
3
Speex settings and jitter
...t playing the gap packet make a really bad tick. John [1] The bad news is on a saturated DSL connection - it's basically unusable without a second of jitter buffering. > -----Original Message----- > From: owner-speex-dev@xiph.org [mailto:owner-speex-dev@xiph.org]On > Behalf Of Chris Flerackers > Sent: Tuesday, May 20, 2003 9:05 AM > To: speex-dev@xiph.org > Subject: [speex-dev] Speex settings and jitter > > > Hi, > > Is there are document where the interaction between all the configuration > options of speex is explained? > Speex seems to have CBR, VBR and A...
2004 Aug 06
0
Speex settings and jitter
...t playing the gap packet make a really bad tick. John [1] The bad news is on a saturated DSL connection - it's basically unusable without a second of jitter buffering. > -----Original Message----- > From: owner-speex-dev@xiph.org [mailto:owner-speex-dev@xiph.org]On > Behalf Of Chris Flerackers > Sent: Tuesday, May 20, 2003 9:05 AM > To: speex-dev@xiph.org > Subject: [speex-dev] Speex settings and jitter > > > Hi, > > Is there are document where the interaction between all the configuration > options of speex is explained? > Speex seems to have CBR, VBR and A...
2004 Aug 06
0
Speex settings and jitter
Hi Conrad, Thanks a lot for the info. This is exactly what I needed. We want to use speex in our IP telephony client and I was indeed trying to put together a GUI configuration screen. Best regards, Chris > On Tue, May 20, 2003 at 06:04:39PM +0200, Chris Flerackers wrote: >> Hi, >> >> Is there are document where the interaction between all the configuration >> options of speex is explained? >> Speex seems to have CBR, VBR and ABR. You can also use SPEEX_SET_QUALITY >> (SPEEX_SET_VBR_QUALITY) and SPEEX_SET_BITRATE which I su...
2004 Aug 06
0
SPEEX_GET_SAMPLING_RATE of encoder is wrong
Hi, Do you get that problem with speex_nb_mode too (or only speex_wb_mode)? Jean-Marc Le lun 29/03/2004 à 05:35, Chris Flerackers a écrit : > Hi, > > I'm using speex 1.1.4 and when I query SPEEX_GET_SAMPLING_RATE > as in > speex_encoder_ctl ( m_pEncoderState, SPEEX_GET_SAMPLING_RATE, > &m_SampleRate ); > I get > 2 > The encoder is initialized with > m_pEncoderState = speex_encoder_init (...
2004 Aug 06
1
wideband bitrates
Hi, I found this list of Speex bitrates in the mail archive. http://www.xiph.org/archives/speex-dev/200306/0004.html Can somebody confirm that this list is correct? I am wondering about the following: - On the Speex website it says: "Speex is based on CELP and is designed to compress voice at bitrates ranging from 2 to 44 kbps." while the bitrates listed here are e.g. 84400 for
2004 Aug 06
0
Speex settings and jitter
.... > > John > > [1] The bad news is on a saturated DSL connection - it's > basically unusable > without a second of jitter buffering. > > > -----Original Message----- > > From: owner-speex-dev@xiph.org [mailto:owner-speex-dev@xiph.org]On > > Behalf Of Chris Flerackers > > Sent: Tuesday, May 20, 2003 9:05 AM > > To: speex-dev@xiph.org > > Subject: [speex-dev] Speex settings and jitter > > > > > > Hi, > > > > Is there are document where the interaction between all the > configuration > > options of speex is...
2004 Aug 06
2
denoise.c missing from 1.1.4 archive
Hi, I just downloaded http://www.speex.org/download/speex-1.1.4.tar.gz and tried to build it but the file denoise.c seems to be missing from the archive. Can you fix this or is it better to get everything from cvs? Another question, when will a stable version of 1.1 be released. I'm interested in the preprocess features but I would also like a stable encoder/decoder :-) Best regards, Chris
2004 Aug 06
0
Fixed-point in CVS
Hi, Is there any speed advantage to using the fixed point version on a PC with an Intel or AMD processor? An advantage would be that you don't have to convert the audio input from short to float but what about encoding/decoding itself? BTW, thanks for a great codec :-) Best regards, Chris <p>>> ----- Original Message ----- >> From: "Jean-Marc Valin"
2004 Aug 06
2
Performance increase?
Hi, I noticed that you changed all constant floating point numbers from double notation (e.g. 3.0) to float notation (3.0f) in the latest version of Speex (in subversion). Did that give any performance increase (because of elimination of the float to double and double to float conversions)? Best regards, Chris > When compiling in debug mode, I also get 530 warnings about double to > float
2004 Aug 06
1
Speex configuration
Hi, I'm trying to cover all Speex configuration options to set quality/mode/bitrate in my application and I was wondering if the following all makes sense: - abr_bitrate - use average bitrate and set it using bitrate parameter - SPEEX_SET_ABR - cbr_bitrate - use constant bitrate and set it using bitrate parameter - SPEEX_SET_BITRATE - cbr_mode - use constant bitrate and