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27th November 2011, 14:54 | #7361 | Link |
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The name of the format is WavPack, not WAVEPack.
I have no idea how good the decoder in avcodec is, and i honestly don't care because its not a format i ever used. The lossless mode seems to decode fine, though. In any case, there is an official DirectShow decoder, so just use that.
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LAV Filters - open source ffmpeg based media splitter and decoders |
27th November 2011, 14:56 | #7362 | Link | |
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Hi Nev,
I tested your last commits against the test suite from matroska.org. All pass well except test4.mkv : Quote:
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27th November 2011, 15:00 | #7363 | Link | |
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How can I cut any MKV without much effort to provide you a sample file? |
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27th November 2011, 15:04 | #7364 | Link |
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I dont think thats a feature that is used by anyone. Also, no MKV splitter i know of can read them, which even reduces the chances that such files exist.
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27th November 2011, 15:27 | #7365 | Link | ||
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Thanks for the fix nevcairiel, though I still wonder why it refused to connect. I haven't done anything differently (with x264, nor oggenc2 (aotuv), nor with mkvmerge). Quote:
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27th November 2011, 16:15 | #7366 | Link | |
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Also: Why Lossless Audio Codecs generally suck http://codecs.multimedia.cx/?p=313 The biggest curse in codec design http://codecs.multimedia.cx/?p=315 |
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27th November 2011, 16:28 | #7367 | Link |
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Lossless codecs only suck or dont suck if you want to write a decoder for it - otherwise, they are lossless, and there is nothing to "suck". Kostya likes to ramble about how everything is so bad in the codec world - don't mind him.
I fail to even see a conclusion in his post, it seems to just go around the fact that there are so many of them.
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27th November 2011, 16:40 | #7368 | Link | |
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DTS-HD Audio consists of a backwards-compatible 5.1-channel core (44.1 kHz or 48 kHz sampling frequency) and new coding extensions for improved audio performance and features to support new high definition HD DVD and Blu-ray Disk optical disk formats. On the other hand DolbY's THD is individual. Finally, you can not decode DTS core seperately but you can bitstream dts or dts-hd alone. (just untick dts or dtshd options.) Last edited by rica; 27th November 2011 at 16:45. |
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27th November 2011, 16:51 | #7369 | Link |
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Was loading fine before the 0.38 version that changed the subtitle stuff...
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27th November 2011, 16:58 | #7370 | Link | |
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And BTW, please don't forget to visit "The Suck Report" on a weekly basis. |
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27th November 2011, 17:18 | #7371 | Link | |
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I accept that this is not a priority for you, using full decoding of both DTS types for now. Thanks for the programs. |
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27th November 2011, 17:43 | #7373 | Link |
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In my trials ffdshow never decoded core dts of a dtshd stream. BTW you can decode full dtshd with LavAudio which has to use TMT's dtsdecoderdll.dll. But it can never decode core dts by alone like ffdshow can not do either. As for the dts DVD's i will check them and report here.
Last edited by rica; 27th November 2011 at 18:08. |
27th November 2011, 18:14 | #7374 | Link | |
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For those with damaged hearing (physical or psychologically), MP3 and co might be good, but not for me. The reason for the problematic packaging and many container formats is the big block size of about one second. The smaller the frame is, the worser is the prediction and the worser the prediction, the more detail is in the differential signal. For MKV this should not be a big deal but since MKV has a very bad design, there can always be problems. Last edited by BloodySword; 27th November 2011 at 18:19. |
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27th November 2011, 19:20 | #7375 | Link |
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We're not bats like you, so we can't hear above 20 kHz anyway (me personally, about 16.5 kHz).
Seriously now, look into learning how to perform ABX tests and you'll save yourself a few headaches (by realizing that mp3 might not be so bad after all).
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27th November 2011, 19:41 | #7376 | Link |
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You can not hear above 20 KHz, that's right. But the higher the samplingrate is, the better the frequencys are stored below 20 KHz. See "Nyquist-Sampling-Theorem".
I testet mp3 for myself and I notice it very strongly, that even 320 kbps does even not suit my needs. Sometimes it is like... I'm hearing any mp3, think the quality is good, then it comes to any detailed part in the song and it is totally messed up so I get heavy migraine. Personally I find soft quant-error noise not as bad as audiopsychoacoustic artefacts and the artefacts resulting of the way how mp3 and aac works. |
27th November 2011, 20:06 | #7377 | Link |
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@ BloodySword: Yes, you have very-good points.
I had forgotten that formats like .mpa, .dca and .ac3 were designed before the "Hi-Def" era , so, and sadly, their maximum sampling frequency is only 48kHz On the other hand, I still think (because I am no actual audiophile) high sampling frequencies (88.2kHz and beyond) sound best when compressed losslessly. Differently from DTS-MA, WavPack CAN do without the "hybrid-mode". And again, except for being "bitrate hungry", lossy WavPack is fine. Last edited by Midzuki; 27th November 2011 at 20:07. Reason: damn typos |
27th November 2011, 20:07 | #7378 | Link |
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Please move any off-topic discussions on what audio format prefer to a more appropriate place, though.
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27th November 2011, 20:17 | #7379 | Link |
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Sorry Nev, I just want to point out that Nyquist-Shannon actually says the opposite, you don't need more than 2x highest frequency to accurately reproduce the wave. Not going to argue about formats anymore
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