similar to: bark_noise

I am experiencing some difficulties with vorbis on my LX164 alpha. Specifically, in bark_noise (psy.c) I see the following behaviour on the first pass through the function: val=-3.4e38 del=1 noise[0]+=val*del noise[1]-=val*del norm[0]+=del norm[1]-=del del=1 noise[1]-=val*del <== here is the problem At this point, noise[1]==3.4e38. We are trying to add another 3.4e38 to it and this is

Hello all, Please try this "patch". It changes the way the noise floor is used for quantization in a not-so-subtle way. At the very end of _vp_compute_mask, add the lines: for(i=0;i<n;i++) flr[i]=.01f*sqrt(flr[i]); The .01 is there to ensure the current codebooks will work. We will really need different, newly-trained codebooks with this change; then the

The patch prevents KEIL MDK compile warnings, like:   warning:  #1035-d: single-precision operand implicitly converted to double-precision Actually ARM Cortex-M4F has only a *single precision* (float) FPU. It's suit for all platforms. See the comment at the begin of patch file. Sincerely Forrest Zhang -------------- next part -------------- Specify the floating point constant with single

I've made block diagram of the encoder because I tried to find out, how it works http://stoffke.freeshell.65535.net/ogg/block.html Although there are specifiation docs, that give very detailed information about single aspects of the encoding (or decoding) , I'm missing documenations that give a more general overview, about how the encoder works. (Vorbis Illuminated seems a bit outdated,

I've made a block diagram of the encoder because I tried to find out, how it works http://stoffke.freeshell.65535.net/ogg/block.html Although there are specifiation docs, that give very detailed information about single aspects of the encoding (or decoding) , I'm missing documenations that give a more general overview, about how the encoder works. (Vorbis Illuminated seems a bit

A boring release, adding source compatibility with xserver 1.20. Adam Jackson (2): Move [HV]Total checks into renditionValidMode rendition 4.2.7 Alan Coopersmith (2): configure: Drop AM_MAINTAINER_MODE autogen.sh: Honor NOCONFIGURE=1 Emil Velikov (1): autogen.sh: use quoted string variables Mihail Konev (1): autogen: add default patch prefix Peter Hutterer

Just a few accumulated build fixes. Adam Jackson (4):       Remove mibstore.h       Fix build against xserver 1.17       Remove dependency on xf86PciInfo.h       rendition 4.2.6 git tag: xf86-video-rendition-4.2.6 http://xorg.freedesktop.org/archive/individual/driver/xf86-video-rendition-4.2.6.tar.bz2 MD5:  405dd1acba9c2e43d7aa67b631762495  xf86-video-rendition-4.2.6.tar.bz2 SHA1:

Adam Jackson (3): Death to RCS tags. Fix includes to silence a warning. rendition 4.2.0 Alan Coopersmith (1): Man page updates - replace references to XFree86 & changes for XF86 4.0 Brice Goglin (1): RENDITION_VERSION* using PACKAGE_VERSION_* Dave Airlie (2): pciaccess: make auto-detect work pciaccess: do unmap path Ian Romanick (4): Supply

Daniel Stone: Makefile.am: make ChangeLog hook safer git tag: xf86-video-rendition-4.1.3 http://xorg.freedesktop.org/archive/individual/driver/xf86-video-rendition-4.1.3.tar.bz2 MD5: a8b97feccb32184820d5856fe78d34db xf86-video-rendition-4.1.3.tar.bz2 SHA1: 9cbd77ad6cba6807823fff3b74923b955580a540 xf86-video-rendition-4.1.3.tar.bz2

-- Joshua Bowman Silverback Networks (559) 305-3770 silverbacknet at gmail.com www.silverbacknetworks.net -------------- next part -------------- src/analysis.c | 6 +++--- src/mlp.c | 3 +++ src/opus.vcxproj | 5 +++++ src/opus.vcxproj.filters | 15 +++++++++++++++ src/opus_demo.vcxproj | 4 ++++ src/opus_demo.vcxproj.filters |

Hello people, Looks like Santa Claus thinks I've been a good boy this year. Here's the third in my performance patch series: d.m.l Apply after applying d.o.n and d.n.m; I don't know how much of those got applied to the CVS tree. What's inside: Request for help! Look in os.h if you're using a compiler or processor I don't use (I use gcc on K5, K7, G3). New MDCT! Now we

Hi Everyone, I just merged a lot of changes in the CELT master branch. This should solve the following issues: - tonal artefacts (birdies) at low bit-rate - tonal artefacts in stereo at all rates - low-frequency noise (roughness) on low bit-rate speech The code has been simplified a lot, but there's lots of changes, so please give this a try and see if anything got broken. Cheers,

> On May 12, 2017, at 1:05 PM, Dave Rice <dave at dericed.com> wrote: > > Hi all, > And cc'ing flac-dev. > >> On May 10, 2017, at 12:15 PM, Dave Rice <dave at dericed.com <mailto:dave at dericed.com>> wrote: >> >> Hi Andrew, >> >>> On May 10, 2017, at 11:19 AM, Andrew James Weaver <weevz at uw.edu <mailto:weevz at

(well, YMMV, but it got me 12% on Mac OS X Public Beta on my test case). In vorbis/lib/scales.h, add the following after fromdB() #define sqrt_fromdB(x) (exp((x)*.11512925*0.5)) In vorbis/lib/psy.c at the bottom of bark_noise(), do: < noise[i]=sqrt(fromdB(v)); > noise[i]=sqrt_fromdB(v); This avoids the sqrt() call entirely by just doing it as part of the exp(). (I'd

Hi everyone. I did a rough recording of an instrumental (electric piano sound) & e-mailed it to a friend in Vorbis 11025 Hz / mono. I was seeking a bitrate in the range 8-16k/sec. The song is 2:55 in length. q=-1 happily achieved a 12.6k/sec bitrate. All file sizes I mention in this are for files without informational tags. And I hope this isn't interpreted as trying to plug my music or

The VQ codebook generation utilities are more or less ready to go. Minor things are left to do, but those will have to be handled as I to them :-) The next thing to do is complete the interface to get compression modes and codebooks to the library for encoding (minor stuff), and then arrange how exactly the MDCT residue is filtered through the codebooks. VQ codebook util instructions:

Hello all! (cc-ing the flac-dev list) I would like to give an update as to the recent CELLAR work on the FLAC specification. • Work has been done to make internal and external links more accurate and reliable. • 'Rice Coding' has been clarified as 'Exponential Golomb Coding.' • Clarifications have been made for binary representation. • Typos and other small changes have been

Hello everyone, I was curious if anyone has performed any listening tests or done work with solo instrument performances with the CELT codec? I experience quite a bit of noise coming up with a heavily tonal stimulus, the worst offender being a trumpet. I understand some of this behavior is to be expected, this is a perceptual codec afterall, but was curious if anyone was able to find an elegant

Hi -- I'm looking at adding Speex decoder and encoder support to the Miles Sound System, a commercial library used by game developers on various platforms including PCs, the Mac, and game consoles. As part of my initial evaluation, I've gone ahead and downloaded the 1.0.4 and 1.1.1 Win32 binary distributions and played around encoding and decoding various files with the speexenc.exe and

Hi everyone, I'm pleased to announce version 0.6.0 of CELT, with many quality improvements. This includes better stereo coupling, better handling of transients, and better handling of highly tonal signals. In addition, packet loss robustness has been improved through the optional use of independent (intra) frames. CELT now supports a larger dynamic range, suitable for encoding 24-bit audio