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28th September 2020, 11:33 | #15001 | Link | |
Herr
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Quote:
Use qaac for that (install iTunes first), https://sites.google.com/site/qaacpage/ https://forum.videohelp.com/threads/...tings-for-QAAC |
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28th September 2020, 11:58 | #15002 | Link |
Life's clearer in 4K UHD
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Hmmm...
Apples AAC encoder does indeed produce better results than Nero's AAC encoder. But when was its encoder last updated? From what I understand the only AAC encoder that is still being developed (in some fashion) is FAAC...
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Last edited by SeeMoreDigital; 28th September 2020 at 12:00. |
28th September 2020, 13:21 | #15003 | Link |
German doom9/Gleitz SuMo
Join Date: Oct 2001
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The Apple CoreAudio AAC encoder can be extracted from the iTunes64 installer, using the "makeportable" script from the qaac downloads "cabinet" page.
Unfortunately, it is now officially only published via the Microsoft Store, so you need a Microsoft account to download it... or you can find it in third-party download archives. Version 12.10.9(.3?) seems to be most recent. _ PS: I just noticed that 7zip cannot extract AppleApplicationSupport.msi from installer ... it worked with version 12.9.3.3 (Feb. 2019). Apple will have changed its software content. But you can try the VideoHelp archive of iTunes. Version 12.10.8 is the last with an installer larger than 250 MB. _ PPS: Don't confuse FAAC (abandoned OpenSource project) with fdk-aac by Fraunhofer or ffmpeg's own AAC encoder. FAAC is LQ and obsolete; ffmpeg's AAC is MQ but recent; fdk-aac is HQ but has strange bitrate steps as quality control. And the dummy version for icudt62.dll to save some space, qaac does not need its features. _ And more news: makeportable2.bat apparently extracts the required DLL files from the iTunes64.msi inside the new installer (64 bit binaries only). Last edited by LigH; 28th September 2020 at 14:04. |
28th September 2020, 15:31 | #15005 | Link | |
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Quote:
The Sonic DTS decoder seems to be more or less perfect for DTS, DTS-ES, DTS-96/24, DTS-HD Master Audio and DTS-HD High Resolution tracks. Dialog normalization is ignored by the Sonic DTS decoder. The only "problem" of the Sonic DTS decoder is that it decodes DTS-HD 7.1 tracks only as 5.1. DTS-ES and DTS-HD Master Audio 6.1 tracks are fully decoded as 6.1, though. and The ArcSoft DTS decoder seems to be perfect for DTS and DTS-HD decoding. It supports every format and channel configuration that exists including 6.1 and 7.1. so if I want to use the sonic decoders can anybody show me how to use them without installing them |
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28th September 2020, 16:12 | #15006 | Link |
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Then the wiki is out of date, recent eac3to versions are using an open-source DTS-HD decoder that decodes all streams without modifications, and without applying DialNorm.
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LAV Filters - open source ffmpeg based media splitter and decoders |
28th September 2020, 18:02 | #15007 | Link | |
Life's clearer in 4K UHD
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Quote:
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28th September 2020, 20:17 | #15009 | Link | ||
Herr
Join Date: Apr 2009
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Quote:
Also, someone wrote this a year ago, Quote:
Nero-encoder supports HEv2 (SBR+PS) but it supports maximum 6 (5.1) channels, Apple AAC supports 8 channels, https://wiki.hydrogenaud.io/index.ph...e=AAC_encoders Last edited by Forteen88; 28th September 2020 at 20:23. |
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28th September 2020, 20:36 | #15010 | Link | |
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Quote:
- qaac is better than NeroAacEnc at low bitrate, but not at default eac3to quality (quality=0.5) For low bitrates you can use opus, better than aac.
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BeHappy, AviSynth audio transcoder. Last edited by tebasuna51; 28th September 2020 at 20:39. |
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28th September 2020, 22:17 | #15011 | Link |
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Getting that message once during start of decoding is normal, the message is not entirely accurate at that point, as long as it doesnt spam it repeatedly its fine.
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30th September 2020, 09:19 | #15012 | Link |
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A few questions about understanding Dialog Normalization. Sorry if these have been answered earlier.
Is DN for both Dolby and DTS stored as metadata in the audiostream itself or is it in - eg. - a BD's playlist? Will it be preserved in the demuxed elementary stream and can it be edited? Cheers |
30th September 2020, 12:41 | #15014 | Link | |
SuperVirus
Join Date: Jun 2012
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Quote:
Yes, that field can be edited. From the ts_102114v010301p.pdf document: DIALNORM/UNSPEC (Dialog Normalization /Unspecified) For the values of VERNUM = 6 or 7 this 4-bit field is used to determine the dialog normalization parameter. For all other values of the VERNUM this field is a place holder that is not specified at this time. The Dialog Normalization Gain (DNG), in dB, is specified by the encoder operator and is used to directly scale the decoder outputs samples. In the DTS stream the information about the DNG value is transmitted by means of combined data in the VERNUM and DIALNORM fields (see Table 5-20). For all other values of the VERNUM (i.e. 0, 1, 2, 3, 4, 5, 8, 9, …15) the UNSPEC 4-bit field should be extracted but ignored by the decoder. In addition, for these VERNUM values, the Dialog Normalization Gain should be set to 0 i.e. DNG=0 indicates No Dialog Normalization. |
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1st October 2020, 14:52 | #15015 | Link | |
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Quote:
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1st October 2020, 15:27 | #15016 | Link |
Life's clearer in 4K UHD
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Drag and drop your media file that contains the 'Dolby TrueHD' stream into UsEac3To's main window.
Wait for the stream to be parsed/read. Make sure 'demux' is selected with the 'Global Parameters' box. Click on the 'RUN CL' button.
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2nd October 2020, 00:18 | #15018 | Link |
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Nope, long time ago I make a little tool to do the same.
Change the metadata value in all frames of the stream (the big job is recalculate the crc values at begin and end of each frame).
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2nd October 2020, 09:47 | #15019 | Link |
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@ LigH and filler56789: Thanks for the info on Dialog Normalization.
So, there was no DN for dts in the DVD era? I learn that DN removal can be achieved with eac3to. What software would be needed to view & edit DN properties? |
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