search for: artefacte

Dear R-Users, my dataset contains timeseries that are structured into task-specific epochs as labelled by a factor and a boolean variable for labelling each data-point within the series as artefact or non-artefact. Now there's no problem in addressing continuous task-specific time-series that are free from artefacts as long as artefacts extend to either boundary of adjacent timeseries but

Hello developers, I recently participated in a public listening test that was held by German magazine c't. They had two categories, 64 kbps and 128 kbps. I only participated in the 64 kbps test where there were 7 .wav files, with 1 of them the original one and the other 6 being encoded with different encoders. Without knowing which file was encoded with which encoder you had to give each

http://bugs.freedesktop.org/show_bug.cgi?id=25275 Summary: [NV30] Graphical artefacts on PPC64 Product: xorg Version: 7.4 Platform: PowerPC OS/Version: Linux (All) Status: NEW Severity: normal Priority: medium Component: Driver/nouveau AssignedTo: nouveau at lists.freedesktop.org

Dear all, I encoded and decoded some files using speex codec and I find out with than when using the original raw file and coding it in NB with different bit rate, complexity or with/without enhancement some kind of slight artefact (a strange low level sound appears) is created at t=1.12 s. This is just before an attack which is present in the signal. I did not try to solve the problems but if

https://bugs.freedesktop.org/show_bug.cgi?id=30286 Summary: Rendering Artefacts for "EffectFrames" with KWin trunk Product: Mesa Version: unspecified Platform: Other OS/Version: All Status: NEW Severity: normal Priority: medium Component: Drivers/DRI/nouveau AssignedTo: nouveau at

Hi guys, as MP3 and Opus have very similar objectives, I think the original poster's question was a valid one: Why does Opus have more artefacts in the lower frequency ranges than MP3 has? The spontaneous suspect that lower frequency artefacts may be more noticeably than higher frequency artefacts seems plausible, also. Is it a matter of energy (which is higher for higher frequencies)? When

Hello. Me again. Have you tried to encode piano solo? Noticed high bitrate Opus gave? And there's also artefact at 15kHz which wasn't in the original audio. Visible with Spek program. Download FLAC and Opus both files, new link: http://www.filedropper.com/example_3 FLAC full: 1084 kbps; FLAC solo: 465 kbps. with --bitrate 160: Opus full: 158 kbps; Opus solo: 190 kbps. Included also Spek

http://bugs.freedesktop.org/show_bug.cgi?id=26057 Summary: Artefacts in kde 4 Product: xorg Version: 7.4 Platform: Other OS/Version: All Status: NEW Severity: normal Priority: medium Component: Driver/nouveau AssignedTo: nouveau at lists.freedesktop.org ReportedBy: alex.vizor at gmail.com

Hi Jean Marc and everyone else :-) I am a bit of an alien here, my expertise is not at all in DSP: I am in network games and recently I started to work in a team dedicated to audio for games. Our prefered codec is speex, mainly for its quality/bandwidth ratio and of course because it is open source. You DSP guys would probably curse us if you saw what kind of ugly things we do to compressed

https://bugs.freedesktop.org/show_bug.cgi?id=105173 Nick Lee <nvlbox at gmail.com> changed: What |Removed |Added ---------------------------------------------------------------------------- QA Contact| |xorg-team at lists.x.org Component|General |Driver/nouveau Version|XOrg git

Dear R user, I have made many logistic regression (glm function) with a second order polynomial formula on a data set containing 440 observation of 96 variables. I?ve made the plot of AIC versus the frequency (presence/observations) of each variable and I obtain a nearly perfect arch effect with a symmetric axe for a frequency of 0.5 . I obtain the same effect with deterministic data. Maybe

Hi, I'm bitten by a bug that is also in the Debian BTS, so I'm not sure you are aware of it. I couldn't find it in the fdo BTS. Anyway the problem is simple. After a successful suspend and resume all window decorations (the places where the shadow was supposed to be, but also the titlebars) are much to colorful (meaning it has some random colors in it). Moving the windows brings the

Hello, everybody I run the following program, and depending on the size of eps I get different results. With eps=1e-05, the program calculates wrong values for x=65:67 and others. The program runs fine with eps=1e-07. Why is this so? Also, I am using area() instead of integrate() because I cannot make integrate to work, especially with imaginary numbers. Maybe someone can show me how to use

https://bugs.freedesktop.org/show_bug.cgi?id=91247 Bug ID: 91247 Summary: Tomb Raider: Underworld renders lots of artefacts on models and objects Product: Mesa Version: git Hardware: Other OS: All Status: NEW Severity: normal Priority: medium Component:

Dear all, I?m working as a data scientist in a major tech company. I have been using R for almost 20 years now and there?s one issue that?s been bugging me of late. I apologize in advance if this has been discussed before. R has traditionally been used for running short scripts or data analysis notebooks, but there?s recently been a growing interest in developing full applications in the

Hi, Apologies if this is a known issues, but I have found what I believe is a bug in the fixed point implementation of the Silk codec and could not find any mention on this in the archives. The bug can be easily reproduced with the fixed point demo program (./configure ?enable-fixed-point ?disable-float-api && make) using the following command: ./opus_demo voip 16000 1 23000

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 10/31/2017 07:08 PM, Ulrich Windl wrote: > as MP3 and Opus have very similar objectives, I think the original poster's > question was a valid one: Why does Opus have more artefacts in the lower > frequency ranges than MP3 has? I'm not sure, but my best guess would be "because MP3's window is very leaky and MP3 has to waste a lot of bits in the LF because of

Hi all, installed the old space shooter Swarm and it is running fine pleased to say except artefacts of lasers and rockets that have been fired staying on screen for up to another 6 seconds. This is as you can imagine a bit irritating as they move with and stay on the screen. Wine x.19. Have set the game to 'unmanaged' by the window manager as was suggested here in another thread, but

Dear David, sharing some related (subjective) thoughts below. On Mon, Jan 7, 2019 at 9:53 PM David Lindelof <lindelof at ieee.org> wrote: > > Dear all, > > I?m working as a data scientist in a major tech company. I have been using > R for almost 20 years now and there?s one issue that?s been bugging me of > late. I apologize in advance if this has been discussed before.