Displaying 20 results from an estimated 10000 matches similar to: "Opus 1.2 released!"
2016 Nov 03
1
Opus 1.2-alpha
Hi everyone,
I've just released Opus 1.2-alpha. It comes with many improvements,
including:
- Speech quality improvements especially in the 12-20 kbit/s range
- Improved VBR encoding for hybrid mode
- More aggressive use of wider speech bandwidth, including fullband
speech starting at 14 kbit/s
- Music quality improvements in the 32-48 kb/s range
- Generic and SSE CELT optimizations
- Support
2017 Jun 20
0
Opus 1.2 is out!
Hi everyone,
Just to let you know that Opus 1.2 is finally here. This major release
brings many quality improvements, new features, and bug fixes. You can
read all the details (and hear audio samples) in this release demo page
page:
https://people.xiph.org/~jm/opus/opus-1.2/
Changes since 1.1.x include:
- Speech quality improvements especially in the 12-20 kbit/s range
- Improved VBR encoding
2011 Nov 17
3
Opus for audiobooks etc
I know the focus for Opus is low delay, but I've been watching its
development with interest because of the potential for audiobook/podcast
use, where latency is practically irrelevant. I hear the upcoming USAC
codec will give good results for this niche (though listening test
results don't seem to be available to the public yet), but I also hear
it'll be extremely patent
2014 Aug 10
1
High Frequency Hiss with Opus at 48 kbit/s
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Hi to everybody.
First of all I hope this is the right place to discuss such an
(nitpicky) issue.
I've just been testing the current Opus release and for mere curiosity
compared its performance to WMAPro with CD quality music at low
bitrates (48 kbit/s).
While Opus generally does a very good job, I found one particular
example (a high pitched
2018 Oct 25
2
Possible bug in Opus 1.3 (opus-tools-0.2-opus-1.3)?
Hi!
Playing with Opus 1.3 I converted a tone sweep with a sample rate of 96kHz (just for fun). Before I had converted that from WAV to FLAC, and to Vorbis without problems.
With Opus I noticed that the file size for 48kHz and 48 kbps compared to 96kHz Vorbis at 31kbps is about double the size and it sounds even worse (than Vorbis) (there is a lot of noise in the lower frequencies when a low
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>
2018 Feb 23
3
[EXTERNAL] Re: Developing OPUS on TI CC3220
Thanks Jean-Marc,
I was able to get both encode and decode working the CC3220 device! But for bi-directional communication, I need decode and encode to occur in less time than the frame size I’m sending (20 ms).
Currently decode takes 16~22 ms and encode is ~13 ms. What is the best way to try to reduce this time? Also, unsure why encode is taking less time than decode...
I've also
2018 Nov 02
6
Antw: Re: Possible bug in Opus 1.3 (opus-tools-0.2-opus-1.3)?
Hi!
Excuse the delay, but I had to deal with a corrupted NTFS file system that ate many important files on an USB stick...
The FLAC version of the original is almost 6MB and it can be downloaded slowly from this time-limited link:
https://sbr5vjid0jgmce4q.myfritz.net:40262/nas/filelink.lua?id=0ba5a10529a6fe7b
On the meaning of a logarithmic sweep: If you use foobar2000 and the
2011 Jun 22
4
PLC Question & OPUS Migration?
Hello everyone, I have been having trouble utilizing the PLC function (I
think). In older versions (0.7.1) a pointer to NULL did the trick, but with
code from the tip of the GIT repository, this method causes the codec to
crash on the C55x fixed point platform. I have not determined where the
crash occurs.
I have also attempted to pass in an array of zero's and this creates an
echoey, reverby
2013 Dec 17
2
1.1 Much slower on Raspberry Pi
Christian,
I will give 64kbit/s a try and post the figures. My own project is voice
only and requires low bitrate so was hoping that it was just the way I was
compiling and not an actual regression in speed for SILK. The raspberry PI
is quite a cheap and handy reference platform though the ARM side is fairly
underpowered but has a great GPU. It also has no audio in which is a pain
for playing
2017 Oct 18
3
OPUS vs MP3
Good morning.
I've ran a test against MP3 format.
Code: (first convert tested audio file to 16 bit 48khz with sox.exe if
needed)
lame.exe -b 320 48khzfilein.wav -o fileout.mp3
lame --decode fileout.mp3 -o fileout.mp3.wav
opusenc.exe --bitrate 320 48khzfilein.wav fileout.opus
opusdec.exe fileout.opus fileout.opus.wav
wavdiff.exe 48khzfilein.wav fileout.mp3.wav -diff fileout.mp3.delta.wav
2016 Sep 09
2
[PATCH 1/3] appveyor: include opus.dll and opus.exp files if available
Using -i should prevent failing if the files don't exist.
---
appveyor.yml | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/appveyor.yml b/appveyor.yml
index c85b0b1..ad9c6c0 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -17,7 +17,7 @@ build:
verbosity: minimal
after_build:
-- cmd: 7z a opus.zip win32\VS2015\%PLATFORM%\%CONFIGURATION%\opus.lib include\*.h
+- cmd: 7z
2018 Jan 06
3
Ask for suggestions about optimizing opus on STM32F407
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2011 Aug 05
1
CELT/Opus Status Update
Hi everyone,
I've made several posts recently about CELT being "replaced" by the Opus
codec ( http://opus-codec.org/ ) and I thought it was time to give an
update on what's going on.
As many of you know, I've been involved at the IETF on this new Opus
codec, which essentially merge (a modified version of) Skype's SILK
codec with CELT. This is more than just two codecs
2015 Dec 28
2
How to make opus work on a low end device ?
hi,
I am porting opus encoder to a low end device with 32K ram, 256K flash and 32MHz arm M3 mcu.
But opus seems consume too much. To make it work , what I can think of
1, Only fixed point supported
2, Only mono voice application supported
3, Set complexity to zero
4, Support only one sample rate, like 16KHz
5, Silk mode only or Celt mode only
My question is , before
2012 Sep 10
11
Cleanup/build improvement for opus
Hello all,
after FOMS I decided to take a look at the opus library and I found
that I could improve a bit the build system and cleanup the code a
little bit.
Most of the changes to the code has been suggested by my two tools
cowstats and missingstatic (part of the ruby-elf gem if you care).
HTH,
Diego
2017 Oct 31
3
OPUS vs MP3
Jean-Mark sarkasm.
Jean-Markasm.
(Bonus points for providing an actual noisy WAV! ^_^)
On 30/10/2017 20:28, Jean-Marc Valin wrote:
Hi,
Before I comment on the graphics you posted to visualize the difference
between two audio signals, I'd like to ask for your help in evaluating
my JPEG encoder. I've encoded an image with JPEG and then computed the
difference with the original. I then
2017 Oct 31
3
Antw: Re: OPUS vs MP3
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
2018 Jan 15
1
Ask for suggestions about optimizing opus on STM32F407
Hello Thomas and Amit,
Thanks for your notice and the detailed decode performance report.
I describe the details of my encode/decode test on STM32F407ZG.
A. opus version: latest 1.2.1 (TI: opus 1.1.2)
B. KEIL 5.23 (TI: ARM compiler tool chain 5.2.7)
C. setup the encoder as the below (fs is the sampling frequency)
enc = opus_encoder_create(fs, chans, OPUS_APPLICATION_AUDIO, &opus_err);
2014 Mar 10
2
Building Opus (git master) ARM assembly for iOS
I?m trying to build Opus (git master) for iOS, and it doesn?t build unless I disable the ARM assembly.
It looks like the problem is that Apple?s assembler doesn?t support all the assembler directives that the GNU assembler does. I suspect this is a combination of the fact that Apple platforms are Mach-O rather than Elf, and just the fact that Apple?s assembler is extremely divergent from the