search for: 12kbps

Displaying 13 results from an estimated 13 matches for "12kbps".

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2015 Jan 22
2
Opus for speech: VBR vs CBR
...CE. I have a few questions here: 1. When I choose VBR mode, the codec seems to choose the bitrate on its own. However, that seems to be an issue on mobile devices. In some cases, when I configure the bitrate to say 20kbps, I see that the outgoing codec bitrate at runtime is sometimes far less (11-12kbps even). That leads to a lower received audio quality. When I choose CBR mode however, the outgoing bitrate is fixed at 20kbps and produces better audio quality. Is there a way to bias the VBR mode to use a value closer to the configured target bitrate or fix this low bitrate issue in any other way?...
2005 Nov 28
1
Question from XM Radio
...y doing the job we had expected. It's the long standing wish that everyone wants... More for less. We are just seeking a bit of magic that just may not be there. Ideally finding a codec that can perform tollerably/intelligibly at 2-4Kbps. And still perform quite well for complex speech at 10-12kbps. Just keeping my eyes (ears) out for something that I have never considered before. I really appreaciate the time you've taken to reply, Thanks. Terry _______________________________________________________________________ Terry Carr Manager, Broadcast Applications XM SATELLITE RADIO...
2004 May 19
14
Can anyone fix this?
Hi, I appologise for the bad ettiquite of this, but I have tried looking for some HTB examples that would help me, and am having trouble understanding how the tc filters should work, but I can''t figure out why this isn''t working. I''ve written this script, based upon the ultimate traffic shaper at LARTC, to try and shape for me and my 3 housemates. The idea being to
2005 Jul 06
8
HTB and bittorrent, won''t work
...t; ) ; class ( <$ssh> ) if tcp_dport == 8080 ; /*Changed port from 22 to 8080 */ class ( <$otro> ) if 1 ; htb () { class ( rate UPRATE, ceil UPRATE ) { $emule = class ( prio 8, rate 6kBps, ceil P2P ) { sfq; } ; $smtp = class ( prio 1, rate 6kBps, ceil 12kBps ) { sfq; } ; $ssh = class ( prio 0, rate 3kBps, ceil 5kBps) { sfq; } ; $otro = class ( prio 1, rate 8kBps, ceil UPRATE ) { sfq; } ; } } } } Also, given the priorities it''s expected to let me surf the web or chat in msn messenger rather than take my whole bandw...
2015 Jan 23
0
Opus for speech: VBR vs CBR
...ere: > > 1. > When I choose VBR mode, the codec seems to choose the bitrate on its own. > However, that seems to be an issue on mobile devices. In some cases, > when I configure the bitrate to say 20kbps, I see that the outgoing > codec bitrate at runtime is sometimes far less (11-12kbps even). That > leads to a lower received audio quality. > When I choose CBR mode however, the outgoing bitrate is fixed at 20kbps > and produces better audio quality. > > Is there a way to bias the VBR mode to use a value closer to the > configured target bitrate or fix this low bi...
2019 Oct 31
1
Antw: Re: Q: Bandwidth vs. bitrate
Hi! Useful advice, thanks! Actually I had been using foobar2000 to recode, because it just makes it so easy to convert multiple files while keeping the metadata (I confess, I'm a "tagger"). But it's easy to miss some encoder option when being presented some default suggestions in a dialog form... Apart form that I always had the impression that Opus could be quite smart
2005 Jul 07
1
HELP PLEASE BITTORRENT SHAPING (HTB)
...(raw[33].b >> 4) & 1 ; class ( <$otro> ) if 1 ; class ( <$p2p> ) ; htb () { class ( rate UPRATE, ceil UPRATE ) { $smtp = class ( prio 1, rate 6kBps, ceil 12kBps ) { sfq; } ; $ssh = class ( prio 0, rate 3kBps, ceil 5kBps ) { sfq; } ; $ack = class ( prio 2, rate 8kBps, ceil 15kBps ) { sfq; } ; $otro = class ( prio 1, rate 8kBps, ceil UPRATE ) { sfq; }...
2024 Aug 09
2
Opus Tools -- low bitrates, new features in 1.5, "expect-loss"
> > I am talking about the original sweep. > > The original sweep stops pretty close to 24 kHz. I mean the original sweep _as_encoded_, sorry.
2019 Nov 01
2
Q: Bandwidth vs. bitrate
Hi! So here is what I got with different encoder settings; still not sure what the "best" setting is. 6kbps seems to add distortions, so I tried 12kbps. MP3-Original: LAME 3.99r, 120kbps, 44100Hz, Stereo, VBR V5 (22:23, 19.8MB) Opus (--raw-rate 44100 --bitrate 56 --vbr --comp 5): (44:45?, 23.4MB): Broken Opus (--bitrate 56 --vbr --comp 5 --ignorelength - %d): (22:23, 12.1 MB, 74kbps) Opus (--bitrate 6 --vbr --comp 10 --ignorelength - %d): (1MB, 6k...
2024 Aug 09
1
Opus Tools -- low bitrates, new features in 1.5, "expect-loss"
On Aug 07 22:04:21, petrparizek2000 at yahoo.com wrote: > > The encoded opus file is 48kHz, > > so how would the output wav be resampled from 16kHz? To be clear: did you mean the opus output of opusenc or the wav output of opusdec? > > What are those "clear signs" exactly? > > The things that I can hear while listening at 1/2 or even 1/4 of the > original
2019 Oct 30
5
Q: Bandwidth vs. bitrate
Hi! I have some MP3 audio material which is basically speech with some background noises, essentially > 120Hz and < 5kHz. I had the idea to reduce the file size by recoding the material to Opus at 56kbps. Unfortunately the result is a file sampled at 48kHz much larger than the original. I hope you agree that it does not make sense to create a file larger than the original (MP3). Of course
2005 Dec 27
9
2.6.14 - HTB/SFQ QoS broken?
Hello, First of all, I already contacted Martin Devera, the developer of HTB, and he told me to search for help on this mailinglist, thus I am describing my problems here now... I am kind of seriously annoyed by QoS as I have been trying for over 3 years to get it working properly - first I did not understand how it works, then it seemed not to work, then it was working perfectly for half a
2005 Nov 04
4
Latency/burst problem with HTB
Hi all :) I''m new to this list, as I''m new too to traffic shaping ;) I''ve set up an FTP server in my ADSL line and I wanted it to serve as fast as possible as long as I don''t use my outgoing ADSL bandwidth, and I''m currently using HTB for that (succesfully, I must add). The problem is (when the FTP server is serving higher than its