similar to: Periodical noise during DTX

Displaying 20 results from an estimated 900 matches similar to: "Periodical noise during DTX"

2017 Oct 17
1
Fix DTX is always unavailable when DISABLE_FLOAT_API is not defined
Hi. I found that DTX is always unavailable when DISABLE_FLAOT_API is not defined in OPUS_AUTO mode. As you know analysis_info.valid is alway true except NaN case and is_silence is alway true except digital zero signal case. In general, following condition will be alway true except exceptional case. (analysis_info.valid || is_silence) But in a code, there is a NOT expression in front of above
2014 Jun 26
0
Opus DTX issue report
The email might have been blocked due to the attachment size, here?s a link to it. https://www.dropbox.com/s/r9j7l3cbb02ob7i/opusDtx_noiseFix1_inOut.zip Pascal On 26/06/14 19:02, "Pascal Huart (phuart)" <phuart at cisco.com> wrote: >Hi Jean-Marc, >Thanks for the fix, the reconstructed signal is now much better. >Unfortunately there are still discontinuities which show
2014 Jun 20
0
Opus DTX issue report
Hi Gonzalo, Thanks for reporting this DTX issue. It should now be fixed in git. Can you confirm this it is indeed the case? Cheers, Jean-Marc On 19/05/14 10:20 AM, Gonzalo Mariano (gmariano) wrote: > Hello: > > > > We noticed that opus reconstructed noise is pulsing with a 400ms pattern > when dtx is enabled in silk mode. This is independent of the background > noise
2014 May 19
3
Opus DTX issue report
Hello: We noticed that opus reconstructed noise is pulsing with a 400ms pattern when dtx is enabled in silk mode. This is independent of the background noise level and is found with speech + non-speech period test files as well as variable level noise-only test files. This issue can be reproduced with opus v1.1 using this command: ./opus_demo voip 16000 1 25000 -dtx input.bin
2015 Mar 04
0
DTX Seems to be Wrong for 10ms Frame Size
Tested DTX feature in Opus 1.0.2 and 1.1 for 20, 40, and 60ms frame size. They all generated only one encoded frame every 400ms during silence period as expected. However, for 10 ms frame size, the DTX period was 200ms instead. Has anyone else experienced the same? Thanks, Chris Wang -------------- next part -------------- An HTML attachment was scrubbed... URL:
2019 Apr 05
0
API for checking whether the encoder is in DTX (PR #107)
On 2019-04-01 3:37, Gustaf Ullberg wrote: > Hi everyone, > > Some time ago, I sent a pull request > <https://github.com/xiph/opus/pull/107> to the Opus github page. > Jean-Marc asked me to post it to the mailing list so everyone can have a > look at it. > > You can find the description and code changes below. Please let me know > if you have any questions or
2004 Aug 06
0
--dtx alone does nothing?
> So far, I've noticed that --dtx alone doesn't seem to do anything, but --vad does > and the combination --dtx with --vad does more. The lone exception is for wide > and ultra-wide coding at quality 0, --vad, alone, makes the file slightly larger. > At all other sized the ordering is always: plain==--dtx, then --vad, then --vad > with --dtx. All you say look normal to me.
2007 Aug 24
0
speex DTX chore
hi there, I am new to mailing list so excuse me if I don't obey to the 'netiquette'. i am writing voice chat and speex is in the root of it. i write it in Java and use JNI to link with 'C'-based Speex 1.2beta. [I know of JSpeex but there are not implemented some features] recently i decided to use DTX feature of speex as well. the code follows. The problem is that no matter
2016 Sep 16
0
Opus DTX support
Hi, I want use opus DTX to save bandwidth in my half duplex VOIP project, so i require help for below questions 1)what is opus DTX and documents to study DTX. 2)if opus DTX is enable do i need send comfort noise or completly drop silence detected frame. 3)How extactly OPUS DTX works with RTP protocol. 4) how to test with OPUS demo binary Thanks & Regards Vittalprasad B R 8722397247
2019 Apr 10
2
API for checking whether the encoder is in DTX (PR #107)
Yes, good point. I added the checking of prev_mode for Silk DTX to avoid using stale data from the Silk state. The PR is updated, and I'm attaching an updated patch. /Gustaf On Tue, 9 Apr 2019 at 12:42, Mark Harris <mark.hsj at gmail.com> wrote: > On 2019-04-08 4:55, Gustaf Ullberg wrote: > > Thank you Mark. > > > > I agree and have now updated the pull request
2004 Aug 06
2
--dtx alone does nothing?
I'm running a: for band in n w u do for quality in 0 1 2 3 4 5 6 7 8 9 10 do for complexity in 3 do for vad in "" "--vad" do for dtx in "" "--dtx" do echo speexenc -${band} --quality ${quality} --comp ${complexity} ${vad} ${dtx} input.${band}.wav
2019 Apr 01
2
API for checking whether the encoder is in DTX (PR #107)
Hi everyone, Some time ago, I sent a pull request <https://github.com/xiph/opus/pull/107> to the Opus github page. Jean-Marc asked me to post it to the mailing list so everyone can have a look at it. You can find the description and code changes below. Please let me know if you have any questions or concerns. Best regards Gustaf Ullberg In WebRTC, we would like to be able to
2019 Apr 08
3
API for checking whether the encoder is in DTX (PR #107)
Thank you Mark. I agree and have now updated the pull request with a new commit, addressing your comments. Please take a look. /Gustaf On Fri, 5 Apr 2019 at 11:41, Mark Harris <mark.hsj at gmail.com> wrote: > On 2019-04-01 3:37, Gustaf Ullberg wrote: > > Hi everyone, > > > > Some time ago, I sent a pull request > > <https://github.com/xiph/opus/pull/107>
2013 Dec 02
0
Opus Multistream DTX questions
When encoding using the Opus multistream API, is it possible for opus_multistream_encode() to return 0? For example, what happens if multiple streams are being encoded, each with DTX enabled and all streams emit DTX packets at the same time? What about the case of a single stream with DTX enabled? Thanks Kevin O'Connor -------------- next part -------------- An HTML attachment was
2019 Apr 09
0
API for checking whether the encoder is in DTX (PR #107)
On 2019-04-08 4:55, Gustaf Ullberg wrote: > Thank you Mark. > > I agree and have now updated the pull request with a new commit, > addressing your comments. > Please take a look. > > /Gustaf I think you will also need to check the mode of the previous frame (st->prev_mode) before using internal SILK encoder state. It could have been in SILK DTX some time ago, but then
2004 Aug 06
1
DTX and VAD doesn't work on one of my computers.
Dear Jean, Thank you so much for reply my message. I am sorry the function return 38 is speex_bits_write(). This function doesn't work on one of my computers. But after I add the function speex_preprocess(), it works well. I am wondering what is the possible reason? What the function speex_preprocess() does? Another problem I have now is when I enable dtx and vad with function
2016 May 04
1
Need to set OPUS_SIGNAL_VOICE for DTX ?
I'm working on an opus codec for the asterisk voip app. Googling DTX found: https://bugs.chromium.org/p/webrtc/issues/detail?id=4559 To paraphrase, if there's silence long enough, opus enters Celt-only mode, which has no DTX. Is this still correct ? And is the suggested work-around effective? sean -------------- next part -------------- An HTML attachment was scrubbed... URL:
2016 Oct 04
2
encoder with FEC+DTX enabled but not detecting noise
Hi, When we pass around 9K samples of only ambient noise (no voice), the encoder which is enabled FEC+DTX is detecting only some 140 frames as non-voice (returning only TOC, no frame content). We were expecting all or more to be identified as non-voice. Our idea was to check how the decoder re-generates the original ambient noise during the silence duration (when we feed NULL to decoder) when
2004 Aug 06
1
DTX and VAD doesn't work on one of my computers.
Hi there, I enable DTX and VAD in speex_encode to detect whether there is silence in voice data. But the same programme got different result on my computers. The function speex_encode always return 38 on one of my computers although it is silence. On all other computers the function speex_encode return 1 when it is silence. It means DTX and VAD doesn't work on particular OS or PC. Do anyone
2016 Oct 05
0
encoder with FEC+DTX enabled but not detecting noise
Hi, I changed the VAD sensitivity by varying VAD_SNR_FACTOR_Q16 and now it shows the difference in silence frames. Thanks Suresh On 4 October 2016 at 17:57, Suresh Thiriveedi <sthiriveedi at gmail.com> wrote: > Hi, > > When we pass around 9K samples of only ambient noise (no voice), the > encoder which is enabled FEC+DTX is detecting only some 140 frames as > non-voice