similar to: MP3/Vorbis/Opus: What I think I hear

Displaying 20 results from an estimated 8000 matches similar to: "MP3/Vorbis/Opus: What I think I hear"

2015 Apr 30
0
MP3/Vorbis/Opus: What I think I hear
"Unfortunately my search for a good free player for Android was not very successful" - I presume you are using an Android device. If that's the case, portable devices have really bad electronics from the point of view of HiFi - because of low voltage and output amplitude being close to power rails. My point is that you are not really comparing one lossy format to another, but rather
2015 May 15
0
MP3/Vorbis/Opus: What I think I hear
On Thursday, April 30, 2015 08:06:21 AM Ulrich Windl wrote: >[...]Unfortunately my search for a good free player [that supports opus] > for Android was not > very successful (the shipped players all can't play Opus, and I think you > can't just install codes, or can you?) Sorry for the long delay, I've been meaning to reply to this part for two weeks. VLC for Android
2016 May 12
2
Ogg Format
Hello Jean-Marc, As an example, I am using the output of opus encoder to store the file as the following format and read back the same during decode process, without having much overhead. (Thought it would be useful to put a picture rather than running text) [image: Inline image 2] Regards Amit On Thu, May 12, 2016 at 10:47 AM, Amit Ashara <ashara.amit at gmail.com> wrote: > Hello
2016 May 12
2
Ogg Format
The overhead of Ogg (in file size) is pretty small and it's efficient enough for most applications (and uses far less CPU than the codec anyway). If anything, you might want to look at optimizing the existing Ogg implementation (e.g. like Tremor did in the context of Vorbis). Of course, you're always free to design a new container, but I doubt it's worth it and it's a lot of work
2016 May 12
3
Ogg Format
On 05/12/2016 10:35 AM, Amit Ashara wrote: > For HMI panels, except for the capture pattern and a single page segment > entry, other fields are not important, and which results in almost 7% > overhead for a 20ms raw frame encoded with Opus. I'm not sure how you get a 7% overhead. In most uses I've seen, the overhead is more around 1%. > At the same time the > file
2015 Dec 21
2
Beginner's questions/suggestions
Hi! I was just trying libopus0-1.1-3.2.x86_64 and opus-tools-0.1.9-3.2.x86_64 on openSUSE Leap, and I was wondering: opusenc does not display the file name it processes. In Lunux when you use some batch processing, it might be interesting! Example output for "for f in *.wav;do opusenc --bitrate 160 $f ${f%.wav}.opus; done": ---just on file--- Encoding using libopus 1.1 (audio)
2016 May 13
2
Antw: Re: Ogg Format
>>> Amit Ashara <ashara.amit at gmail.com> schrieb am 12.05.2016 um 17:47 in Nachricht <CAEyg9sgjbsxQY-=VnhQrKiGeTcFSRr1wxOPUhNyCQF8Piuahow at mail.gmail.com>: > Hello Jean-Marc, > > Assuming that a 48KHz, 20ms 8-bit linear PCM data which is 960 bytes is > compressed to 64 bytes (for assumption). The with the Oggs header (4 byte) Actually what I don't
2015 Dec 22
1
Antw: Re: Beginner's questions/suggestions
>>> Ralph Giles <giles at thaumas.net> schrieb am 21.12.2015 um 19:51 in Nachricht <CAEW_RkshUM55uwdvU6DsE17pLZki651Xvvu7d2Y6jObePXZwCQ at mail.gmail.com>: > On 21 December 2015 at 04:31, Ulrich Windl > <Ulrich.Windl at rz.uni-regensburg.de> wrote: > >> opusenc does not display the file name it processes. In Lunux when you use > some batch processing,
2016 May 12
2
Antw: Re: Ogg Format
>>> Amit Ashara <ashara.amit at gmail.com> schrieb am 11.05.2016 um 19:32 in Nachricht <CAEyg9sjvTWMBMMCJ8HQcYmbv1BtNt54CgpqWaGNm02MWrKcxaQ at mail.gmail.com>: > Hello Jean-Marc, > > So for the moment we can assume that this method is also OK to use? > > On Embedded Systems, both SRAM and Flash can be a restricting factor > besides the compute time. To
2017 Oct 16
1
Antw: Re: [PATCH] Support for Channel Mapping 253.
>>> Drew Allen <bitllama at google.com> schrieb am 10.10.2017 um 20:29 in Nachricht <CABQ9DctQ0+gBgUif7BBJpjjKR7_V_H5OC1JM47w50oaaLXL4Tg at mail.gmail.com>: > Hi Jean-Marc, > > Thanks for the feedback. Attached are my comments and an updated patch. > > 1) I see that it's adding an #include of stdarg.h to opus_multistream.h > Is that left over from the
2017 Jun 06
4
Antw: Re: celt_inner_prod() and dual_inner_prod() NEON intrinsics
>>> Linfeng Zhang <linfengz at google.com> schrieb am 06.06.2017 um 06:46 in Nachricht <CAKoqLCAfj+fDUMLfN4dLNSZ4NNAZpaSt_BWZRp+7XBqfhiSqiQ at mail.gmail.com>: > Hi Jean-Marc, > > I tried "==" before, and it failed when both results are 0.0. Maybe the > exponent or sign has difference because of the different 0.0 representation > in NEON. If anybody
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
2017 Apr 19
4
2 patches related to silk_biquad_alt() optimization
Hi, Attached are 2 patches related to silk_biquad_alt() optimization. Please review. Thanks, Linfeng Zhang -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.xiph.org/pipermail/opus/attachments/20170419/f08f5030/attachment-0001.html> -------------- next part -------------- A non-text attachment was scrubbed... Name:
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
2017 Apr 24
2
2 patches related to silk_biquad_alt() optimization
Hi Ulrich, As Jean-mark recommended, we created "--enable-check-asm" config option to active OPUS_CHECK_ASM macros in the optimization, where the C function is called inside and the results of C and optimization functions are compared when encoding/decoding the real audio files. Thanks, Linfeng On Wed, Apr 19, 2017 at 11:46 PM, Ulrich Windl < Ulrich.Windl at
2016 May 27
1
Opus player for older Android
Hi! You probably know already, but recently there's "fobbar2000 mobile" available for Android (I think Windows and iOS, too), and it plays Opus even ol older Android (like 4.0). Ulrich
2000 Nov 29
4
RPC exception: "Who are you failed (dce / rpc)"
Hello, with OpenSSH_2.3.0p1 running in HP-UX 11.00 I noticed that the "SD commands" (like "swcopy") produce the following error when being logged in via SSH: ERROR: RPC exception: "Who are you failed (dce / rpc)" 11/29/00 11:20:18 MET Ideas? Regards, Ulrich P.S. Not subscribed to the list
2017 Apr 19
3
[PATCH] cosmetics,silk: correct input/output arg comments
Hi, Attached is a patch for cosmetics purpose. Please review. Thanks, Linfeng Zhang -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.xiph.org/pipermail/opus/attachments/20170419/34354707/attachment.html> -------------- next part -------------- A non-text attachment was scrubbed... Name: 0001-cosmetics-silk-correct-input-output-arg-comments.patch
2016 Jan 20
2
AVX Optimizations in Opus
Hello, I had talked earlier with 'Timothy B. Terriberry' <tterribe at xiph.org>, about adding support for AVX instructions in Opus, but since he appears to be busy I would like to resend this on the mailing list. I've created a pull request https://github.com/xiph/opus/pull/5 to add the testing infrastructure for the changes before adding the actual code. A draft for the rest
2017 Sep 18
1
Antw: Re: opusfile Include fix
>>> Jean-Marc Valin <jmvalin at jmvalin.ca> schrieb am 16.09.2017 um 08:12 in Nachricht <29959506-9f3b-2ad1-fc02-2aea7c53c084 at jmvalin.ca>: > Actually, you're supposed to add /usr/include/opus to your include path. > That's why the includes don't have the "opus/" prefix. Hi! But that's uncommon: You also don't put /usr/include/sys into