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4th September 2009, 13:14 | #9301 | Link | |
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But try encode a DTS-MA or TrueHD to AC3 640 Kb/s and compare with DTS 1.5Mb/s
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4th September 2009, 14:00 | #9302 | Link | |
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AC3 640K is really "the way to go" with short size and play in all standalones(i never saw standalones that can't play 640K but i can be wrong as i don't know all models(of course)). observation: i only use AFTEN(WAVtoAC3Enc) for AC3.(is the same AC3 encoder used in EAC3to) with others encoders used before i always found "issues" and was posted somewhere in this audio forum. |
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4th September 2009, 16:54 | #9304 | Link |
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I just say: AC3 is more efficient than DTS.
I think I put this comparative 3 times in this thread: http://tech.ebu.ch/docs/tech/tech3324.pdf
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BeHappy, AviSynth audio transcoder. Last edited by tebasuna51; 9th January 2011 at 16:35. Reason: new link |
4th September 2009, 20:59 | #9305 | Link |
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I usually keep the AC3 track for compatibility purposes - and S/PDIF transport. At 448+kbps it's honestly "good enough" for me! If I must transcode something, it's always to Nero AAC-LC. The default Q=.5 sounds very good to me, and it's almost always smaller than 640kbps AC3.
I find the tasty high resolution / bitrate audio tracks tempting, but I'm rarely impressed by the difference. Once in a blue moon I'll FLAC a high-res track - but AAC is usually awesomely awesome for my tastes! BTW - excellent link, tebasuna51! It was an interesting read, and further substantiates what folks have been saying on doom9 for years ~MiSfit
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6th September 2009, 09:08 | #9307 | Link | |
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DD/DD+ at 640kbps can indeed be better than DTS 768 but based on tests the only versions that provided maximum quality at lowest sizes without sacrificing quality were DTS 1.5mbps and DD+ 1.5bmps and above. You can read about comparisons here: http://www.hemagazine.com/node/Dolby...compressed_PCM They visited both DTS and Dolby labs. They did say that even though DTS-MA, TrueHD and LPCM offered high bitrates and excellent quality, DD and DTS held very good even at 448/640/768 bitrates. Even though they could distinguish the audio difference with these lower bitrate codecs (they say it did sound a bit softer and flatter) they would be good enough to majority of people while DTS 1.5 and DD+ 1.5+ couldn't be spotted at all in blind tests against DTS-MA/TrueHD/LPCM. This is why I chose to encode my movies with DTS 1.5mbps. I even have SurCode encoder where I encode TrueHD as DTS 1.5mbps. Just some thoughts. |
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6th September 2009, 09:12 | #9308 | Link | |
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I mean, I'd definitely do that because it would mean better compatibility with PS3 and xbox 360 which i have everywhere around my house as extenders but based on above articles I'm feeling more confident encoding as DTS 1.5 as I'm trusting these blind tests myself so I want to be sure. |
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6th September 2009, 11:11 | #9309 | Link | |
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They weren't capable of hearing the difference between the lossless formats and DTS-HD High Resolution / DD+ 1.5mbps. DTS-HD High Resolution is between 2.0 and 6.0mbps, and the core DTS are 768kbps (DVD) and 1536kbps(BR). They were capable of noticing a slightly difference between the core DTS's and the lossless, but between DD 640kbps and the lossless only one of them was able to tell the difference. So, that test also seems to indicate that DD 640kbps is equal or slightly better than DTS 1536kbps. There was an important distinction in the two tests, though. In Dolby it was a blind test, but in DTS it wasn't. It's "easier" to spot a difference when you know that should be there... Edit: Don't forget also that in Dolby it was only a 10s test, and by their description of the sound it did not seem to be a very hard to compress piece. A soundtrack is more than 1H30m, so maybe it's not such a good idea to relly your decision in a comparison made with only 10s of a soundtrack... Last edited by yesgrey; 6th September 2009 at 11:19. |
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6th September 2009, 12:14 | #9310 | Link | |
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"The lossless, Dolby Digital Plus, and DTS-HD High Resolution compressed tracks were just a little more open and airy. I hate to say it, but they just sounded more realistic and transparent. The 448 kbps Dolby Digital and standard DTS tracks were less so, a little more closed off. Between the 640 kbps Dolby Digital and the uncompressed, the difference was even less noticeable." I think he compare 448 Kb/s DD with 1.5 Mb/s DTS, and say 640 Kb/s DD is better.
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BeHappy, AviSynth audio transcoder. Last edited by tebasuna51; 6th September 2009 at 12:22. |
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6th September 2009, 12:42 | #9311 | Link | |
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chose one music(send me some options, maybe i have here) i will encode in 5.1 and send: AC3-640k, DTS-1.5Mb, the seperateds waves useds as sources (L,R,C,LFE,LS,RS) and multichannel wave too. after hear AC3 and DTS, tell us "who is who". after that compare the sound with the waves. deal? :-) |
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6th September 2009, 18:24 | #9315 | Link | |
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eac3to multichan.wav mono.wavs
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7th September 2009, 00:20 | #9316 | Link |
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Just a quick question. When one does a eac3to -demux movie.mpls, the audio is not touched, right? The .dtsma audio I get is pure and not dependant on any decoders I have (or don't have) installed on my computer, right?
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7th September 2009, 11:33 | #9319 | Link |
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and DTS 1.536 Mb/s (we can name as 1.5Mb) for dvd.
if DTS 768 is the standard, DD 448K win for miles and the competition between formats is without sense. Last edited by raquete; 7th September 2009 at 11:39. Reason: corrections |
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