search for: sbr

...proper to adress as some kind of representative of thge Ogg vorbis project, I dont find names on the homepage. I am a reporter on a swedish computer magazine called Datateknik 3.0, and I am doing a story on the swedish company Coding technologies, who are adding its "coding enhancer" SBR (spectral band replication) to MP3 and AAC. Thomson will demo "MP3PRO" equipment this summer. Lars Liljeryd tells me that SBR is unique, and that it builds on fifteen man-years of research and development. So, unique, he says. But obvioulsy he is partial on that, cause it is his own...

>> Do you (or the ogg vorbis community) understand how SBR works? There is >> info on http://www.codingtechnologies.de/technology/sbr.htm >> bnut I am guessing this infop is not enough to explain the technology. Robert Voigt: >I haven't heard about SBR before. After reading that webpage I can say the >following: [ . . . ] I don...

Hello, Are there any open source project that is similar to SBR from Coding Technologies that possibly could be used together with Ogg Vorbis? /Pontus <p>--- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/ To unsubscribe from this list, send a message to 'vorbis-dev-request@xiph.org' contai...

Hi., do you think that sbr policy in queue strategy will be useful? Bye ---------- Forwarded message ---------- From: nik600 <nik600 at gmail.com> Date: Sat, 7 Mar 2009 15:21:14 +0100 Subject: add a new queue strategy: SBR To: Asterisk Developers Mailing List <asterisk-dev at lists.digium.com> Hi to all isn...

Thanks! Btw, have you tried using SBR-technology or similar with speech codecs? That might be a good idea I thought.. But I don't know if it produces as good quality with speech codecs as it does for music codecs. Do you know if there is any open source variant of SBR? /Pontus -----Ursprungligt meddelande----- Från: owner-speex-d...

Just a reminder to keep testing. The latest builds should be rock solid. The url is: http://i.cantcode.com:8888/stats.xml You can now get stats ouptut by pointing a browser to: http://i.cantcode.com:8888/stats.xml We're looking for more win32 freeamp reports, and any other clients besdies the standard ones (sonique, winamp, xmms, etc). Oh, and I stuck some silly station ids in between

Just a reminder to keep testing. The latest builds should be rock solid. The url is: http://i.cantcode.com:8888/stats.xml You can now get stats ouptut by pointing a browser to: http://i.cantcode.com:8888/stats.xml We're looking for more win32 freeamp reports, and any other clients besdies the standard ones (sonique, winamp, xmms, etc). Oh, and I stuck some silly station ids in between

Well, I don't know what SBR is, but there's something in the wideband mode that may be similar: It's possible to encode the whole 4-8 kHz band with just ~1-2 kbps by only encoding the (LPC) shape of the spectrum and then just filling that band with "something that makes sense". Quality is quite reasonable......

...for example safeBinaryRegression to safeBinaryRegress) the warning goes away and R CMD check completes successfully. Also, regardless of the package name, the package installs and runs as expected. I'm at a loss trying to figure out what's going on. To reproduce: (1) check out the sbr package (which passes R CMD check) svn checkout svn://svn.r-forge.r-project.org/svnroot/sbr/pkg safeBinaryRegression (2) replace sbr with safeBinaryRegression in DESCRIPTION and NAMESPACE (3) run R CMD check Session Info: > sessionInfo() R version 2.9.1 (2009-06-26) i386-apple-darwin...

Important (imho)! I found this site in the internet: http://www.plusv.org/ PlusV is an audio enhancement algorithm similar to SRB of Mp3Pro, but 1) better than SBR 2) Fully open-source It seems to me wise to include PlusV into new versions of Ogg Vorbis. P.S. what about some long-awaited features in Ogg Vorbis? 1) ability to turn off the frequency filter in the encoder (especially for high bitrates) 2) CBR encoding Thanks and best regards. --- >8 ---- L...

Sort of off topic, but I was wondering about how the SBR data factors into an mp3pro bitrate. If you encode a "64kbps" mp3pro stream, I'm guessing that 64kbps would include the SBR data. So, when played in a normal MP3 player, would a 64kbps mp3pro stream actually sound worse than a 64kbps MP3 stream? Tony Arcieri --- >8 ---- List ar...

Sorry for the crosspost but it's relevant to Vorbis and Icecast I believe. I'm seeing more and more streaming stations using AACplus, with many listeners being amazed at the sound quality. Most say that a 48kb/s sounds better than a 128kb/s MP3, which would put Ogg Vorbis at around 96kb/s IMO. That means only half the bitrate is required in AACplus compared to Ogg Vorbis for the same

Sorry for the crosspost but it's relevant to Vorbis and Icecast I believe. I'm seeing more and more streaming stations using AACplus, with many listeners being amazed at the sound quality. Most say that a 48kb/s sounds better than a 128kb/s MP3, which would put Ogg Vorbis at around 96kb/s IMO. That means only half the bitrate is required in AACplus compared to Ogg Vorbis for the same

Pontus Carlsson wrote: >Thanks! > >Btw, have you tried using SBR-technology or similar with speech codecs? That >might be a good idea I thought.. But I don't know if it produces as good >quality with speech codecs as it does for music codecs. Do you know if there >is any open source variant of SBR? > SBR exploits a limitation of your ears. At hig...

...vide any 3GPP source code. It is downloaded > from 3GPP during compilation. To use package compiled by this code, > you may need a license from 3GPP. > > AAC+ codecs incorporate several patents, held by Philips, Dolby, > Ericsson and Nokia. Companies holding patents for HE AAC v1 (SBR) have > formed a patent pool under Via Licensing to provide a single point of > license for product makers. Patents owned by Dolby and Philips > covering the Parametric Stereo used in HE AAC v2 (SBR+PS) are not > included in the Via Licensing pool and are licensed separately by &gt...

...07 13:33:29] WARN format/format_get_type Unsupported or legacy > stream type: "audio/aacp". Falling back to generic minimal handler for best > effort. Is one source AAC-LC (standard AAC) and the other HE-AAC v2 (AAC+)? There are three variants of AAC: AAC-LC HE-AAC (= AAC-LC with SBR) HE-AAC v2 (= HE-AAC with parametric stereo), aka AAC+ Check your encoders. You also have to match all other settings, eg. sample rate. -- Paul Martin <pm at nowster.me.uk>

...ode from "Performing TableGen Step" 1>Creating browse information file... 1>Microsoft Browse Information Maintenance Utility Version 8.00.50727 1>Copyright (C) Microsoft Corporation. All rights reserved. 1>BSCMAKE: error BK1506 : cannot open file '.\win32\debug\AutoUpgrade.sbr': No such file or directory 1>Build log was saved at "file://c:\Documents and Settings\Administrator\llvm\win32\VMCore\Win32\Debug\BuildLog.htm" 1>VMCore - 2 error(s), 0 warning(s) 2>------ Build started: Project: CodeGen, Configuration: Debug Win32 ------ 3>------ Build s...

...lly to deal with specific metadata requirements. There is a very high level explanation of mp3PRO at the http://www.mp3prozone.com/basics.htm site. At the risk of being somewhat incomplete i will add: 1) The "normal" frames in an mp3PRO file can be decoded by ordinary mpeg/mp3 code. The SBR frames will simply be thrown away. An mp3PRO file reports a sample rate in the non-SBR frames that reflects only those non-SBR frames and thus timing is not effected when an ordinary mp3 decoder throws them away. 2) At low bit rates and up to about 128kbps mp3PRO files and streams in general sound...

..."audio/aacp". Falling back to generic minimal handler for > best > >> effort. > > > > Is one source AAC-LC (standard AAC) and the other HE-AAC v2 (AAC+)? > > > > There are three variants of AAC: > > > > AAC-LC > > HE-AAC (= AAC-LC with SBR) > > HE-AAC v2 (= HE-AAC with parametric stereo), aka AAC+ > > > > Check your encoders. > > > > You also have to match all other settings, eg. sample rate. > > > > -- > > Paul Martin <pm at nowster.me.uk> > > ______________________________...

...code. It is downloaded >> from 3GPP during compilation. To use package compiled by this code, >> you may need a license from 3GPP. >> >> AAC+ codecs incorporate several patents, held by Philips, Dolby, >> Ericsson and Nokia. Companies holding patents for HE AAC v1 (SBR) >> have formed a patent pool under Via Licensing to provide a single >> point of license for product makers. Patents owned by Dolby and >> Philips covering the Parametric Stereo used in HE AAC v2 (SBR+PS) are >> not included in the Via Licensing pool and are licensed se...