justinrh 176 Posted October 30, 2023 Share Posted October 30, 2023 It seems like every Disney movie on TV (or is it the local channel 31 that broadcasts them??) has AC3 5.1 but there is no sound when I play the recording. I have to switch to the stereo track or turn on the Shield's Dolby processing (I normally leave have it off). Any ideas as to why this would be a problem for some AC3 5.1 files? Sent ATV app logs @ 3:52 CT, user home. embyserver.txt Link to comment Share on other sites More sharing options...
rbjtech 4344 Posted October 31, 2023 Share Posted October 31, 2023 Probably need an example of the file itself to determine - but I suspect they are not properly formatted AC3 or not AC3 at all, but that's what's it is being reported as - and thus need to be further processed by the Shield. What does Mediainfo say about the Audio track ? Link to comment Share on other sites More sharing options...
ebr 14960 Posted October 31, 2023 Share Posted October 31, 2023 Hi. The major difference I see is the bitrate of the audio track (as well as channel content). 384k vs. 192k. What happens with the same recording in the web app? Link to comment Share on other sites More sharing options...
justinrh 176 Posted October 31, 2023 Author Share Posted October 31, 2023 (edited) MediaInfo says: Audio #1 ID : 52 (0x34) Menu ID : 1 (0x1) Format : AC-3 Format/Info : Audio Coding 3 Commercial name : Dolby Digital Codec ID : 129 Duration : 31 min 58 s Bit rate mode : Constant Bit rate : 384 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 Delay relative to video : -305 ms Stream size : 87.8 MiB (6%) Language : English Service kind : Complete Main Web app direct plays the 5.1 w/o issue in Edge (has to transcode in Fx), but the video has to transcode, of course. If Emby would divulge how to share video files I would. Edited October 31, 2023 by justinrh Link to comment Share on other sites More sharing options...
Luke 37272 Posted November 1, 2023 Share Posted November 1, 2023 Hi. Can you try sideloading our standard android app on the same device and see how that compares? https://emby.media/emby-for-android.html Thanks. Link to comment Share on other sites More sharing options...
rbjtech 4344 Posted November 1, 2023 Share Posted November 1, 2023 11 hours ago, justinrh said: MediaInfo says: Audio #1 ID : 52 (0x34) Menu ID : 1 (0x1) Format : AC-3 Format/Info : Audio Coding 3 Commercial name : Dolby Digital Codec ID : 129 Duration : 31 min 58 s Bit rate mode : Constant Bit rate : 384 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 Delay relative to video : -305 ms Stream size : 87.8 MiB (6%) Language : English Service kind : Complete Main Web app direct plays the 5.1 w/o issue in Edge (has to transcode in Fx), but the video has to transcode, of course. If Emby would divulge how to share video files I would. Looks fairly typical, so nothing obvious. re - sharing the file, then trim a sample in mkvtoolnix (use the output tab, split mode, by parts based on timestamps - then use '00:01:00-00:02:00' (for example) to create an extractt of 60 seconds worth of video starting after 60 seconds. (format is HH:MM:SS) Link to comment Share on other sites More sharing options...
justinrh 176 Posted November 1, 2023 Author Share Posted November 1, 2023 13 hours ago, rbjtech said: re - sharing the file ?? Link to comment Share on other sites More sharing options...
seanbuff 847 Posted November 1, 2023 Share Posted November 1, 2023 On 01/11/2023 at 08:21, justinrh said: If Emby would divulge how to share video files I would. 3 minutes ago, justinrh said: ?? 2 Link to comment Share on other sites More sharing options...
justinrh 176 Posted November 2, 2023 Author Share Posted November 2, 2023 (edited) But, how about this? ffmpeg.exe -i "Toy Story of Terror! 2013-10-16.ts" -t 30 -codec copy out.ts BUT, if I trim it the problem is not seen. @LukeI PM'd you a link to the uncut file, even though you didn't ask for it. The std app is worser (even the trimmed file won't play audio). The link expires in ONE WEEK! Edited November 2, 2023 by justinrh Link to comment Share on other sites More sharing options...
rbjtech 4344 Posted November 2, 2023 Share Posted November 2, 2023 7 hours ago, justinrh said: But, how about this? ffmpeg.exe -i "Toy Story of Terror! 2013-10-16.ts" -t 30 -codec copy out.ts Sure - you can use ffmpeg to trim if you like as this a transport stream (TS) - but as you've seen, there is a chance the 'timing' is corrected if you do this - which is probably the original problem. 1 Link to comment Share on other sites More sharing options...
justinrh 176 Posted November 2, 2023 Author Share Posted November 2, 2023 So maybe I just need to trim off a couple of seconds of each channel 31 recording Link to comment Share on other sites More sharing options...
rbjtech 4344 Posted November 3, 2023 Share Posted November 3, 2023 11 hours ago, justinrh said: So maybe I just need to trim off a couple of seconds of each channel 31 recording Possible just do a post recording processing script - probably better to just write to an MKV rather than keep as a TS. Link to comment Share on other sites More sharing options...
rbjtech 4344 Posted November 3, 2023 Share Posted November 3, 2023 Just now, rbjtech said: Possible just do a post recording processing script - probably better to just write to an MKV rather than keep as a TS. I don't know what OS Emby is running on - but some examples of a post processing script in this thread, but plenty more if you search the TV forum. https://emby.media/community/index.php?/topic/118947-scheduled-mp4-conversion-after-recording-is-done/#comment-1293923 1 Link to comment Share on other sites More sharing options...
justinrh 176 Posted November 3, 2023 Author Share Posted November 3, 2023 Why prefer MKV? The video track would still be MPEG, right? Link to comment Share on other sites More sharing options...
pwhodges 1540 Posted November 4, 2023 Share Posted November 4, 2023 Because MKV has a much more flexible structure, which makes it easier to handle. Paul 1 Link to comment Share on other sites More sharing options...
rbjtech 4344 Posted November 4, 2023 Share Posted November 4, 2023 9 hours ago, justinrh said: Why prefer MKV? The video track would still be MPEG, right? Yes, MKV is just a container - but the key issues with some TS files is timing - by putting the mpeg2 in an MKV container, it adds timing into the stream, making ffwd/rwd, jump to a time etc possible. With the native TS, it's likely to have sync issues. 1 Link to comment Share on other sites More sharing options...
ebr 14960 Posted November 4, 2023 Share Posted November 4, 2023 As others have said, the container can be very important/helpful. TS is a Transport Stream which is something that is not indexed and not intended to be seekable. 1 Link to comment Share on other sites More sharing options...
Luke 37272 Posted November 9, 2023 Share Posted November 9, 2023 Do you get audio with this file in the standard app? Link to comment Share on other sites More sharing options...
justinrh 176 Posted November 9, 2023 Author Share Posted November 9, 2023 Up until the freeze point. 1 Link to comment Share on other sites More sharing options...
justinrh 176 Posted November 20, 2023 Author Share Posted November 20, 2023 I've been converting all my recordings to MKV. It does seek faster, but it doesn't fix the audio out-of-sync issue or the freeze issue. Link to comment Share on other sites More sharing options...
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