similar to: Audio quality

(Second try to send this. I wonder if the first one gotten eaten by a spam filter; I'll link to patches instead of attaching them.) Here are the tincctl patches I've been working on. They apply to http://www.tinc-vpn.org/svn/tinc/branches/1.1@1545. I intend to commit them once the crypto stuff's fixed. Since they're basically done, I'm emailing them now for review and in case

Hi, Does any one have any pointers on improving moh quality?? Symptoms are crackling and hissing as the sound comes and goes.. I installed mpg123 this morning.. I have tried various MP3's sampled at 160k, 128k, 32k and 8k and they all sounded terrible... The PC is a P4 so its got plenty of processing power.. I have tried a few different types of classical music (Piano, Violin and full

Hi, I was wondering if anyone has experimented with Speex's wideband (16kHz) mode at lower quality settings. In particular I have been using quality 3, and with wideband input files the resultant frequency spectrum is limited to about an upper end around 3.5kHz (almost telephony quality bandwidth). Has anyone tried increasing the spectral bandwidth at the expense of lowering the

I'm new to R and struggling to reproduce graphs I've made with gnuplot. Example here: http://www.slamb.org/tmp/one-active.png I have three different data sets plotted on the same axis. (I also have a number of samples for each X value which I displayed with quartiles rather than plotting every point; that will likely be the subject of my next question.) My attempts to do this in R:

Hi Jean-Marc, I thought at quality 3 (wideband) - wb_submode1 that the 4-8k band was not using a codebook table. From the code I can see that some sort of "lsp" encoding is performed. What exactly does this encode? (I assume lsp means line-spectral pairs) The reason I am asking is I'm comparing the "effective" spectral bandwidth of Speex against the

Hello, To start with, thanks a lot for making such a great voice codec available! Having recently upgrading to speex rc1, It occurred to us that there seems to have been a regression in the quality of encoding since version beta1. We are compressing some 22khz wave files in wb mode with maximum quality / complexity in VBR, and the result was really great with speex beta1. With rc1 (or beta3),

Hi, I just released unstable version 1.1.2 that contains more fixed-point work. Though it's still not 100% complete, enough have been done to make it run in real-time on ARM. In order to do that, compile with --enable-fixed-point --enable-arm-asm. All narrowband modes work in real-time with complexity 1 (some work with higher complexity) and some wideband modes also work (up to ~20 kbps) at

One of my user is praising Skype!!! I cannot figure out anymore what I can improve! This users sip show peers is jumping from 65 msec to 1800 all the time. Of course his voice quality is like a morse code with dashes or dots of connection time. The next minute he calls me via Skype and it works fine !!!! What indicates that there is no fault on his Internet connection!!! He is using his

Please consider using 16-bit 16kHz (wideband) instead. It's a huge increase in audio quality and the bitrate is still very low, especially if you take advantage of Speex features such as VBR. 8kHz seems totally inappropriate to me for desktop streaming audio, let alone 8-bit samples. Or perhaps your recording equipment is an original Sound Blaster from 1989? (Even that could record at

I would love to see podcasters adopt the Speex format to deliver clear speech audio at wideband or ultra-wideband formats. However, podcasters want something that can easily play on Windows, Macs, and even Linux web browsers. The Speex website has some nice audio demos, but it doesn't actually offer any HTML embedded samples using actual Speex format. Would there be a way to do this with

Hello, I am new to tinc and I have read in the docs that one can "signal" tinc with various options. How to achieve this under Windows? Any assistance/pointers appreciated. Apologies, my original post was mailed from another account, hence it was rejected. Thanks Graham Smith -------------- next part -------------- An HTML attachment was scrubbed... URL:

On Tue, Jul 30, 2019 at 11:54:53AM -0400, Michael S. Tsirkin wrote: > On Tue, Jul 30, 2019 at 05:43:29PM +0200, Stefano Garzarella wrote: > > This series tries to increase the throughput of virtio-vsock with slight > > changes. > > While I was testing the v2 of this series I discovered an huge use of memory, > > so I added patch 1 to mitigate this issue. I put it in this

Hello developers, I have a question about supported bitrates for SPEEX. Regardless of whether I specify a 10kbps or a 8kbps bitrate, the encoded .spx file is the same size and have the same PESQ value. This makes me wonder if SPEEX supports arbitrary bitrates, or only a certain set. A few more details about my configuration: I am using SPEEX encoder version 1.1.12 I am encoding a narrowband

This is a really good point, and definitely a recurring theme on this mailing list. :) I wonder, what are some better options for handling this issue, other than to keep saying "just use 8/16/32kHz"? - Extend Speex to support other sample rates (seems unlikely..?) - Integrate a resampling algorithm into libspeex - Maintain a list of recommended resampling libraries that work well

On 15/12/09 10:37, Blaise Potard wrote: > Having recently upgrading to speex rc1, It occurred to us that there > seems to have been a regression in the quality of encoding since > version beta1. Just curious, did you identify where exactly the regression occurred? > We are compressing some 22khz wave files in wb mode with maximum > quality / complexity in VBR, and the result was

I must have really shot myself in the foot on this one. I reinstalled CentOS 4.4 (have to, for now) on my test machine, exactly the way it was before (same options anyway), but when it comes up, I get: Booting 'CentOS-4 x86_64 (2.6.9-42.ELsmp)' root(hd1,0) Filesystem type is ext2fs, partition type 0x83 kernel /vmlinuz-2.6.9-42.ELsmp ro root=LABEL=/ rhgb quiet Error 15: File not

I have Centos 5 loaded and running virt-manager. I setup a new VM and the install starts but my X cursor is not aligned with my "arrow" pointer. They also move at different rate. I am running cygwin X server on my PC. Any guess ? Alan

Hi, in a project i must degrade the voip/video, i know to do latency (tbf), but i don''t know how to create jitter. I want to do it on a router/bridge and not the generating equipment. Any have a idea, or know a piece of code that do it? Thanks Ciprian

Have used Centos 5 now couple of weeks and started to find pieces on places, ie. found logs :D Now, these ntpd errors strances me. Anyone else getting these? Errors frequency error 500 PPM exceeds tolerance 500 PPM: 1 time(s) frequency error 503 PPM exceeds tolerance 500 PPM: 1 time(s) frequency error 504 PPM exceeds tolerance 500 PPM: 1 time(s) frequency error 505 PPM exceeds

Hello Jean-Marc, and thanks a lot for your quick answer! 2009/12/16 Jean-Marc Valin <jean-marc.valin at usherbrooke.ca>: > On 15/12/09 10:37, Blaise Potard wrote: >> >> Having recently upgrading to speex rc1, It occurred to us that there >> seems to have been a regression in the quality of encoding since >> version beta1. > > Just curious, did you identify