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24th March 2011, 11:37 | #1 | Link |
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LPCM 5.1 to DTS conversion
LPCM 5.1 is from Bluray
Have used Eac3to to get 6 mono WAVs from Bluray LPCM 5.1 (listed as RAW/WAV I believe) And then SurCode to make DTS from WAVs Have tried 16 & 24 bits WAVs to feed SurCode Have tried 1536. Should I use 768? Have tried Remap Blu-Ray channels to 6 Channels (- bluray flag) Have tried Slightly Different Header for WAVs (but Eac3to 3.22 says this flag is no longer supported & needed) Have remuxed DTS audio with h264 video from Bluray using tsMuxeR TS file OK on PC. Plays fine with KMPlayer MediaInfo report OK BUT no sound when TS played from MPEG4 player box with DTS delivered to Sony 5.1 (with DTS support) system trough S/PDIF DTS not recognized by Sony system. After looking around searching for posts about this issue I've come to you for your help. If you have any idea about what I'm doing wrong. Or any tip. Thanks for your help. PS: Bluray hasn't got DTS track (despite the spec). Only AC3 5.1 in addition to LPCM 5.1. The reason why I want to perform the conversion. |
24th March 2011, 12:24 | #3 | Link |
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I knew I had forgotten something!
Have tried DTS with zero padding (dts), DTS compact (cpt renamed to dts) and DTS wav Only DTS compact OK with tsMuxer (1.10.6). DTS padded not supported and DTS wav seen as stereo. Have used only CPT. Is that the issue? Cheers |
24th March 2011, 13:42 | #4 | Link | |
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.cpt type is OK, as it should be.
It's up to the hardware player to pad the DCA stream with zeroes and send it to the receiver. Maybe your hardware player actually does not detect/support DTS ??? Cheaper/older devices usually support only AC-3 and uncompressed stereo. Quote:
Last edited by space1999; 24th March 2011 at 13:45. |
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24th March 2011, 15:31 | #5 | Link |
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Player DOES support DTS for sure. Have played many other movies/concerts with DTS audio.
About detecting audio stream. Not sure but I can tell DTS not detected since DTS is displayed on the front panel when it is. Eac3to Log eac3to v3.22 command line: "D:\Documents and Settings\pwt\Portable Progs\eac3to322\eac3to.exe" "J:\Music Video (Archives)\Blu-ray\BDMV\STREAM\00002.m2ts" 5: "I:\Music Video (Temporary files)\Eac3to\K-TKPLH.wavs" -blu-ray -log="I:\Music Video (Temporary files)\Eac3to\Eac3to - LPCM to WAVs.txt" ------------------------------------------------------------------------------ M2TS, 1 video track, 4 audio tracks, 1:44:58, 60i /1.001 1: Chapters, 17 chapters 2: h264/AVC, 1080i60 /1.001 (16:9) 3: RAW/PCM, English, 2.0 channels, 24 bits, 48kHz 4: AC3, English, 2.0 channels, 224kbps, 48kHz 5: RAW/PCM, English, 5.1 channels, 24 bits, 48kHz 6: AC3, English, 5.1 channels, 448kbps, 48kHz [a05] Extracting audio track number 5... [a05] Reading RAW/PCM... [a05] Swapping endian... [a05] Remapping channels... [a05] Writing WAVs... [a05] Creating file "I:\Music Video (Temporary files)\Eac3to\K-TKPLH.L.wav"... [a05] Creating file "I:\Music Video (Temporary files)\Eac3to\K-TKPLH.C.wav"... [a05] Creating file "I:\Music Video (Temporary files)\Eac3to\K-TKPLH.R.wav"... [a05] Creating file "I:\Music Video (Temporary files)\Eac3to\K-TKPLH.LFE.wav"... [a05] Creating file "I:\Music Video (Temporary files)\Eac3to\K-TKPLH.SR.wav"... [a05] Creating file "I:\Music Video (Temporary files)\Eac3to\K-TKPLH.SL.wav"... [a05] The original audio track has a constant bit depth of 24 bits. Video track 2 contains 377530 fields. eac3to processing took 21 minutes, 16 seconds. Done. SurCode Log DTS DVD: Core Bit Rate = 1536000 bps Frame Size = 512 samples Pad zeros at end of frame= No Channel Layout = 3/2/.1 Sampling Frequency = 48000 Hz Bits Per Input Sample = 24 QMF Filter = Nonperfect reconstruction Rear channel attenuation = 0 dB HDCD = No ES = No Compressed audio file = I:\Music Video (Temporary files)\SurCode\1.0.23\K - TKPLH - DTS (CPT).cpt MediaInfo for DTS file General Complete name : K - TKPLH - DTS (CPT).cpt.dts Format : DTS Format/Info : Digital Theater Systems File size : 1.11 GiB Duration : 1h 44mn Overall bit rate : 1 510 Kbps Audio Format : DTS Format/Info : Digital Theater Systems Duration : 1h 44mn Bit rate mode : Constant Bit rate : 1 510 Kbps Channel(s) : 6 channels Channel positions : Front: L C R, Side: L R, LFE Sampling rate : 48.0 KHz Bit depth : 24 bits Stream size : 1.11 GiB (100%) Could Frame Size of DTS be an issue? Thanks for your help |
24th March 2011, 15:50 | #6 | Link | |
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Quote:
Try with other container (m2ts, mkv).
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24th March 2011, 16:54 | #7 | Link |
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High Definition DVB-T Tuner/Recorder
Video format support: MPEG 2 MP@ML .ps, H.264MP@L4 .ts, .avi, .mp4, .mkv, .vob Audio format support: mp3, wma; DD, DD+; HE-AAC;Dolby Digital AC-3/5.1 1 HDMI output and 1 optical SPDIF digital audio output Through S/PDIF it can send DTS to Sony 5.1 system. Tested and working as said before with many movies/concerts Will try MKV and M2TS (although not listed). Thanks for the idea. Cheers |
25th March 2011, 15:12 | #8 | Link |
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Have tried M2TS without success but good new is it's supported by player. Video plays fine but still no sound.
MediaInfo reports General ID : 1 Complete name : K-TKPLH - DTS (CPT) - 24.split.1.m2ts Format : BDAV Format/Info : Blu-ray Video File size : 951 MiB Duration : 5mn 28s Overall bit rate : 24.3 Mbps Maximum Overall bit rate : 35.5 Mbps Video ID : 4113 (0x1011) Menu ID : 1 (0x1) Format : AVC Format/Info : Advanced Video Codec Format profile : High@L4.1 Format settings, CABAC : Yes Format settings, ReFrames : 4 frames Duration : 5mn 28s Bit rate mode : Variable Bit rate : 21.8 Mbps Maximum bit rate : 35.0 Mbps Width : 1 920 pixels Height : 1 080 pixels Display aspect ratio : 16:9 Frame rate : 29.970 fps Standard : NTSC Color space : YUV Chroma subsampling : 4:2:0 Bit depth : 8 bits Scan type : Interlaced Scan order : Top Field First Bits/(Pixel*Frame) : 0.350 Stream size : 854 MiB (90%) Color primaries : BT.709-5, BT.1361, IEC 61966-2-4, SMPTE RP177 Transfer characteristics : BT.709-5, BT.1361 Matrix coefficients : BT.709-5, BT.1361, IEC 61966-2-4 709, SMPTE RP177 Audio ID : 4352 (0x1100) Menu ID : 1 (0x1) Format : DTS Format/Info : Digital Theater Systems Duration : 5mn 28s Bit rate mode : Constant Bit rate : 1 510 Kbps Channel(s) : 6 channels Channel positions : Front: L C R, Side: L R, LFE Sampling rate : 48.0 KHz Bit depth : 24 bits Stream size : 59.2 MiB (6%) Language : English For MKV problem is my player doesn't support such high video bitrate (> 20Mbps) Is there a way to lower video bitrate? Also is it worth trying DTS with padding instead of compact? Cheers |
25th March 2011, 19:45 | #9 | Link | |
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Quote:
Maybe convert LPCM to AC3 640 Kb/s, more compatible and same quality than DTS 1536 Kb/s
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25th March 2011, 19:54 | #10 | Link |
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Thanks a lot tebasuna51 for all your good advices!
Though about AC3 640 but didn't think it would challenge DTS 1536. How come is it same quality? Can you point me to some literature so I can learn something in the process. Thanks again for your help. Very much appreciated. Cheers |
25th March 2011, 20:09 | #11 | Link |
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Because the AC3 encoder is more efficient than DTS, like video encoders MPEG4 and MPEG2 encoders, and obtain the same quality with less bitrate.
The AAC encoder is more efficient than AC3/DTS but can't be send by SPDIF to receiver. I only know this literature about multichannel codecs: http://tech.ebu.ch/docs/tech/tech3324.pdf
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25th March 2011, 21:07 | #12 | Link | |
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Quote:
Dolby Digital, DTS and DVD: A History |
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27th March 2011, 13:58 | #14 | Link |
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I though I'd let you know how things are going for me.
tebasuna51 you said all seemed OK. And you were right. It was OK But I was using mkvmerge 4.6.0 to make MKV file. For some reason the MKV from 4.6.0 is not supported by my player. Works perfectly when using mkvmerge 4.0.0. I get DTS and just for info works with DTS ZP & DTS CPT & DTS WAV. Again thanks a lot to all of you for your time. Cheers |
Tags |
dts, eac3to, lpcm 5.1, surcode |
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