similar to: Multichannel echo cancellation

On Sat, Nov 1, 2008 at 2:40 PM, Aymeric Moizard <jack at atosc.org> wrote: > The vcproj file provided for 2005 in 1.2rc1 does not include > _USE_SSE when compiling the project for "Release_SSE". This > define is only used when compiling under "Release_Dynamic_SSE". > > Is this just because the vcproj file is wrong or is it because > this #define must not

Please, I'm looking at speex rc1 echo_cancellation API docs and I found there is now a funcion for doing decorrelation: void speex_decorrelate( SpeexDecorrState * st, const spx_int16_t * in, spx_int16_t * out, int strength) How does it fit to the speex_echo_cancellation function ? When removing echo from multiple channels I need to decorrelate the input mic first and

Hi FLACers I'm studying music production and am currently doing an analysis of the FLAC format. If anyone has the knowledge and a minute to explain i would greatly appreciate any help. One thing that i cannot make sense from in the FLAC documentation (a thing that is hard to find info on in general) is how the decorrelation fase works exactly. I understand that the two channels in a stereo

I just checked out trunk/vorbis to build the latest libvorbis, and noticed an inconsistency in the project settings. For the two build configurations Debug and Release, we have as the Output Directory "$(SolutionDir)$(ConfigurationName)", and the Intermediate Directory "Debug". ("Release" for the Release configuration) However, for the two build configurations

when i encode i multi channel file, does flac encode every channel seperatly or does is look for similarities between channels? the documentation says: INTER-CHANNEL DECORRELATION In the case of stereo input, once the data is blocked it is optionally passed through an inter-channel decorrelation stage. The left and right channels are converted to center and side channels through the following

On 1/2/07, Josh Coalson <xflac@yahoo.com> wrote: > I'm not sure I understand... I think the INDEPENDENT you are referring > to means the interchannel decorrelation method. this stage is before > and independent of LPC analysis. Correct. > I'm not sure why "independent" frames would not decode correctly > though. more info on exactly how it is not working

Hey everyone, I have a few questions about FLAC that aren't answered in the FAQ or the documentation. Maybe someone knows about these details. 1. What exactly is meant by "reference encoder"? 2. Concerning interchannel decorrelation, what is the point of creating separate signals, why not just keep the channels you have? For example, you might create "mid" and

Hello, I am new to the list, to FLAC and to FLAC development but I am having a problem in trying to make FLAC work with MediaMVP based the mvpmc project (ref. http://www.wvpmc.org) that hopefully someone can help me with. This device is possibly minimum spec. for a FLAC decoder. In any case, I have had some success cross-compiling libFLAC (without the ogg or metadata modules).for the embedded

Hi, I work for a company which makes meteor and wind radar (http://www.gsoft.com.au). On occasion (ie during meteor showers such as the Leonids) we configure the system to save raw data as it comes out of the acquisition system, the data rate for this varies (depends on acquisition parameters and number of coherent integrations etc), but usually it is around 600kb/sec. The data consists of 16

--- Ulrik Nissen <obbarius@rediffmail.com> wrote: > > Hi FLACers > > I'm studying music production and am currently doing an analysis of > the FLAC format. If anyone has the knowledge and a minute to explain > i would greatly appreciate any help. One thing that i cannot make > sense from in the FLAC documentation (a thing that is hard to find > info on in

Dear all, I made a simple test of the Cholesky decomposition in the package 'Matrix', by considering 2 variables 100% correlated. http://blogs.sas.com/content/iml/2012/02/08/use-the-cholesky-transformation-to-correlate-and-uncorrelate-variables/ The full code is below and can be simply copy&paste in the R prompt. After uncorrelation I still have a correlation of +-100%...

Hello, I'm new to this list, and I would like to know about the current status of FLAC and surround formats (5.1, 7.1). I know it is possible to compress interleaved multichannel files with FLAC, but does it in any way have any multichannel matrix, that collects common information from all channels and use this when compressing? If not, wouldn't it be a great idea to have this feature!!!

Curt Sampson wrote: > On Sun, 24 Aug 2003, smoerk wrote: > > >>there are different channel profiles for 5.1: >>L R C LFE Ls Rs (DVD) >>L R Ls Rs C LFE >>L C R Ls Rs LFE (Film) > > > I don't see why you need more than one of the above formats. It's not > like you can't decide to put the LFE channel into "input 3" or "input

"Linda A. Walsh" <flac at tlinx.org> wrote: > what does the exhaustive model search do? I am not an expert on the guts of FLAC, but there is some information about this at: http://flac.sourceforge.net/documentation_format_overview.html and scroll down to "MODELING". > Does it try all of the functions listed under "-A" to find the 'best', >

Hi everyone, I've just released Speex 1.2rc1. This adds support for acoustic echo cancellation with multiple microphones and multiple loudspeakers. It also adds an API to decorrelate loudspeaker signals to improve multi-channel performance. In the bugfix department, there are fixes for a few bugs in the echo canceller, jitter buffer and preprocessor. At this point, the API for 1.2 should be

Hi, I plan to use AEC for a live performance, storytelling for very young children (and their parents!) in a mongolian yourte . Actually the storyteller can make vocal loops, there is an omnidirectional microphone in the center of the yourte, 5 loudspeakers in a circle along the yourte's wall and Pure Data in a linux box. And now she wants to make vocal loops over music and loops over

--- MVallevand <mvallevand@gmail.com> wrote: > Hello, I am new to the list, to FLAC and to FLAC development but I am > having a problem in trying to make FLAC work with MediaMVP based the > mvpmc project (ref. http://www.wvpmc.org) that hopefully someone can > help me with. This device is possibly minimum spec. for a FLAC > decoder. > > In any case, I have had some

--- MVallevand <mvallevand@gmail.com> wrote: > On 1/2/07, Josh Coalson <xflac@yahoo.com> wrote: > > I'm not sure I understand... I think the INDEPENDENT you are > referring > > to means the interchannel decorrelation method. this stage is > before > > and independent of LPC analysis. > > Correct. > > > I'm not sure why

Martin Leese wrote: > > At: > http://flac.sourceforge.net/documentation_tools_flac.html#flac_options_exhaustive_model_search > > it states, "If the max LPC order is high this > can significantly increase the encode time." > This suggest that if the max LPC order is low > then using -e will not be slow. > ---- That brings up another question then... What

Linda Walsh <flac at tlinx.org> wrote: ... > That brings up another question then... What is 'hi' (v. low?)... Zero, or close to zero, is low. 12 is high. ... > What's a subset stream? This is explained at: http://flac.sourceforge.net/format.html in the bulleted point beginning, "FLAC specifies a subset of itself as the Subset format." ... > Another