search for: quality

...ay, but hey...). The disks may or may not share a controller. I don't care enough to check... Test #1: Redhat 7.3 ogg 1.0 glibc-2.2.5-36 gcc-2.96-110 kernel-2.4.18-4 compiled for athlon -> CD: "No Doubt - Rock Steady" Avg for Quality level 0: = 8.0026846153 Avg for Quality level 0.5: = 7.9694153846 Avg for Quality level 1: = 7.9713461538 Avg for Quality level 1.5: = 7.9430307692 Avg for Quality level 2: = 7.8890230769 Avg for Quality level 2.5: = 7.8449692307 Avg for Quality level...

I'm a bit confused about VBR with Opus. I see that the default is VBR, but I don't see any way to specify a quality setting. I can set a target bitrate, but that's definitely not what I want; I want a constant quality level, like "-q" in oggenc, and for the encoder to select bitrates based on the desired quality. For example, for playback through earbuds or laptop speakers, I wouldn't need an...

I am planning to develop an R package to manage all aspects of data quality. I am very experienced in data quality, but fairly new to R. I have tried to find a suitable data quality package, and am surprised not to find much to suit my requirements. Developing the package would be an ambitious effort, involving several contributors (that I have already identified, and who...

Hi there, I'm using libvorbis in my program and need to encode to target bitrate. I know libvorbis prefer to use quality scale but I can't use it. I've found something at faq http://vorbis.com/faq/#quality *For now, quality 0 is roughly equivalent to 64kbps average, 5 is roughly 160kbps, and 10 gives about 400kbps. Most people seeking very-near-CD-quality audio encode at a quality of 5 or, for lossless ste...

Hi everyone, I am trying to make some publication-quality plots for use in Microsoft Word, but I am having trouble creating high-quality plots that are supported by Microsoft Word. If I use the R plot function to create the figure, the lines are jagged, and the picture is not of high quality (same with JPEG(), TIFF(), and PNG() functions). I have tried...

When i use VBR do i need to set VBR quality or speex quality? Is the speex quality referred to the overall quality and instead VBR quality only if i use VBR? Do these qualities override each other? Thanks. --------------------------------- L'email della prossima generazione? Puoi averla con la nuova Yahoo! Mail -------------- nex...

Sounds like you'll be reinventing square wheels. Searching "data quality package" on rseek.org brought up many hits. Cheers, Bert Bert Gunter "The trouble with having an open mind is that people keep coming along and sticking things into it." -- Opus (aka Berkeley Breathed in his "Bloom County" comic strip ) On Fri, Aug 4, 2017 at 2:56 AM,...

Hi, I just built a sample application with speex resampler in linux and I tried to resample 8K sine wave tone mono to 48k using speex_resample_process_int. I am using a tool called EAQUAL for audio quality. I find the quality of Speex resampler to be decreasing when I increase the quality q of the resampler init function. Can some one give me pointers regarding this?? As per the API, if the quality factor is increased, it is assumed that the quality should increase which is no the way I observed wi...

The ffmpeg2theora chapter[1] of the Theora Cookbook says that the only advantage of two-pass encoding is that you can hit a specific target size. But isn't it so that you can reserve bits for difficult parts of a video, which improves the perceived quality? It may be true that Theora does quite alright without two passes, but it seems like a no-brainer to me that two passes will always be better. -- Remco [1] http://en.flossmanuals.net/TheoraCookbook/FFMPEG2Theora

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 narrowband qua...

I am trying to dynamically set the compression or quality of an image when displaying it. I have seen in the RMagick documentation how to set the quality only when writing the file to disk. How can I set the quality dynamically or set the compression? The method "image.quality=" does not exist and "image.compression_type=" is not in...

Hi All, Actually, the question is right on the topic. Is it possible to change the quality while encoding ? If the answer is yes, does the jitter buffer provides info about latency, e.g. : if latency is too high, we lower down the quality, if the latency is okay, we are raising the quality until latency rise up again... Thank you for your help. Morgan

Hi all, I am running a series of experiments where after manipulating my data I run several clustering algorithms (agnes, diana and a clustering method of my own) on the data. I wanted to determine which clustering method did the best job, so therefore I had defined my own quality measure using two criteria: compactness of the data within the clusters themselves and the amount of seperation between the clusters. Anyway, my quality measure does not work, since according to my quality measure the quality gets increasingly better as more clusters are formed untill every da...

...ithout --vad. I'll add a warning for that.=20 Okay, my second guess was right. I'm not completely insane today. > > Another point I'd just like clarified is how to specify bit rates. There= > seem to be=20 > > four different ways to do it: > >=20 > > 1) --quality > > Note that in narrowband mode, there are less than 11 different modes, so > quality 1 and 2 are the same, the same for 3 and 4, 5 and 6, and 7 and > 8. Okay, I probably would have noticed that if I had stared at the data for too long. > > 2) --bitrate (CBR?) > > yes,...

I have looked at the codec's available but I don't know how get the highest quality recorded message. If a user calls in over the normal telephone network is this limited to the carriers codec or the codec at the asterisk side? Would I get a higher quality result using VoIP rather than the normal network? Any help would be appreciated. Thanks Fats.

On 27.11.2017 02:00, YIRAN LI wrote: > I'm using libvorbis in my program and need to encode to target bitrate. I > know libvorbis prefer to use quality scale but I can't use it. > > I've found something at faq http://vorbis.com/faq/#quality > > *For now, quality 0 is roughly equivalent to 64kbps average, 5 is roughly > 160kbps, and 10 gives about 400kbps. Most people seeking > very-near-CD-quality audio encode at a qua...

Hi, I'm testing Asterisk installation on my Slackware Linux Box, I am making calls from kphone. I've noticed that standard sample voice files attached to * distro (*.gdm files) havn't good quality. What can be done to improve it? I'm using alsa drivers. BR, Corvin

hi group , i am working on dahdi_monitor for measuring voice quality , so i want to know that on which data i can tell that this PRI lines are working properly, is there any measurement on basis of that i can make MOS. i am working from last 2-3 days but i only get idea about making .raw file and making .wav file and visulal mode of RX and TX of PRI line. what i wa...

...6/libspeex/nb_celp.c libspeex/nb_celp.c --- ../original/speex-1.1.6/libspeex/nb_celp.c 2004-07-15 01:16:52.000000000 -0400 +++ libspeex/nb_celp.c 2005-02-27 08:24:49.000000000 -0500 @@ -1746,6 +1746,21 @@ st->submodeSelect = st->submodeID = ((SpeexNBMode*)(st->mode->mode))->quality_map[quality]; } break; + case SPEEX_GET_QUALITY: + { + int quality; + + for(quality=0;quality <=10; quality++) + if (st->submodeID == ((SpeexNBMode*)(st->mode->mode))->quality_map[quality]) break; + + if (quality>10) { + (*(int*)ptr) = -1; +...

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 "eff...