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5th December 2023, 00:31 | #1 | Link |
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Need to delay DTS-HD MA track then mux to mp4
If I mux a ts with DTS-HD MA track and DV HEVC video with tsmuxer and select to delay it, then convert to mkv it stays delayed, but if I try to convert to MP4 the audio is changed back to being delayed.
What can I use to change the audio delay permanently where the delay stays for good and then can be used in MP4 conversions? |
6th December 2023, 00:25 | #2 | Link |
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You would have to specify again because the offset you want is not part of the source file, but became a property of the container.
If you want the correction to be with the file: reencode.
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6th December 2023, 13:04 | #3 | Link | |
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eac3to can insert silent frames to a DTS-MA without recode it, and the delay can be preserved. For instance:
Quote:
Total Frames / SubF: 5614 / 5614 Duration ..........: 59882 ms (0 h. 0 m. 59.882 s.) Output.dts Total Frames / SubF: 5642 / 5642 Duration ..........: 60181 ms (0 h. 1 m. 0.181 s.) eac3to add 28 silent frames of 10.666 ms, a total of 298.6 ms, for that the remaining: +2ms could not be fixed You can do the delay +- 5 ms
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6th December 2023, 18:52 | #4 | Link |
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Out of interest... Why are you using the .mp4 container?
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7th December 2023, 12:59 | #5 | Link | |
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Quote:
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7th December 2023, 15:00 | #7 | Link |
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Really!
What hardware are you using?
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7th December 2023, 16:18 | #8 | Link | |
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Should have been using the 100ms option and changing the - to a + and changing it to +1024ms. |
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7th December 2023, 16:42 | #10 | Link | |
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Just-so-you-know.... The C9 is the last LG television to support native decoding of lossy DTS.
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7th December 2023, 17:27 | #11 | Link | |
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Quote:
But maybe I'm just playing the AC3 inside it or something? Video ID : 1 Format : HEVC Format/Info : High Efficiency Video Coding Format profile : Main 10@L5@High HDR format : Dolby Vision, Version 1.0, dvhe.05.06, BL+RPU Codec ID : hev1 Codec ID/Info : High Efficiency Video Coding Duration : 2 h 12 min Bit rate : 16.2 Mb/s Width : 3 840 pixels Height : 2 160 pixels Display aspect ratio : 16:9 Frame rate mode : Constant Frame rate : 23.976 (24000/1001) FPS Color space : YUV Chroma subsampling : 4:2:0 Bit depth : 10 bits Bits/(Pixel*Frame) : 0.082 Stream size : 15.0 GiB (70%) Title : Language : English Tagged date : 2023-12-07 15:30:45 UTC Color range : Full Codec configuration box : hvcC+dvcC Audio #1 ID : 2 Format : E-AC-3 Format/Info : Enhanced AC-3 Commercial name : Dolby Digital Plus Codec ID : ec-3 Duration : 2 h 12 min Bit rate mode : Constant Bit rate : 1 024 kb/s Channel(s) : 6 channels Channel layout : L R C LFE Ls Rs Sampling rate : 48.0 kHz Frame rate : 31.250 FPS (1536 SPF) Compression mode : Lossy Stream size : 968 MiB (4%) Title : Original Language : English Service kind : Complete Main Default : Yes Alternate group : 1 Tagged date : 2023-12-07 15:30:45 UTC Audio #2 ID : 3 Format : DTS XLL Format/Info : Digital Theater Systems Commercial name : DTS-HD Master Audio Codec ID : mp4a-A9 Duration : 2 h 12 min Bit rate mode : Variable Bit rate : 2 034 kb/s Maximum bit rate : 2 376 kb/s / 2 034 kb/s Channel(s) : 2 channels Sampling rate : 48.0 kHz Frame rate : 93.750 FPS (512 SPF) Bit depth : 24 bits Compression mode : Lossless Stream size : 1.88 GiB (9%) Language : English Default : Yes Alternate group : 2 Tagged date : 2023-12-07 15:30:45 UTC Audio #3 ID : 4 Format : DTS XLL Format/Info : Digital Theater Systems Commercial name : DTS-HD Master Audio Codec ID : mp4a-A9 Duration : 2 h 12 min Bit rate mode : Variable Bit rate : 3 672 kb/s Maximum bit rate : 5 194 kb/s / 3 672 kb/s Channel(s) : 6 channels Channel layout : C L R Ls Rs LFE Sampling rate : 48.0 kHz Frame rate : 93.750 FPS (512 SPF) Bit depth : 24 bits Compression mode : Lossless Stream size : 3.39 GiB (16%) Language : English Default : Yes Alternate group : 3 Tagged date : 2023-12-07 15:30:45 UTC |
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7th December 2023, 18:12 | #12 | Link |
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The television will be able tell you which audio track it's accessing and playing...
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7th December 2023, 18:33 | #14 | Link |
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The TV's media player app can access and play Dolby Digital Plus. It can also access and play the lossy DTS core embedded within a lossless DTS-HD MA stream.
Have you tried selecting between the three audio tracks?
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7th December 2023, 18:42 | #16 | Link | |
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Quote:
Out of interest... Do you have an AVR capable of decoding DTS-HD MA bit-streams?
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7th December 2023, 19:08 | #18 | Link |
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In that case it's pretty pointless keeping the lossless DTS-HD MA stream. You might as well extract and keep the lossy DTS core(s).
I see from your MediaInfo report that the video stream has been encoded with Dolby Vision. This being the case you will need to mux everything into the .mp4 or .m2ts/.ts container. If the video stream had been encoded with regular HDR10, muxing everything into the .mkv container will be fine.
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7th December 2023, 19:46 | #19 | Link | |
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Sometimes I wonder though about if I'm seeing things or not, and some Dolby Vision is washed out or grayer blacks on P5 MP4's as well.. |
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7th December 2023, 19:59 | #20 | Link |
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That's not something I can help you with as I play my Dolby Vision encoded files using an OPPO UDP-203 hardware media player...
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