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[HELP] OPUS 7.1 audio problem (?)
#2
No clue, can't reproduce the problem here.
Did two test encodes with 7.1 audio and the output plays fine, no stuttering.

F:\Hybrid\64bit>MediaInfo.exe "g:\Output\T2 DTS-HD 7.1.mkv"
General
Unique ID                                : 94988206616419280386751504160944266073 (0x4776102A820B41B36F1C9CCFA7179B59)
Complete name                            : g:\Output\T2 DTS-HD 7.1.mkv
Format                                   : Matroska
Format version                           : Version 4
File size                                : 55.8 MiB
Duration                                 : 25 s 575 ms
Overall bit rate                         : 18.3 Mb/s
Frame rate                               : 23.976 FPS
Encoded date                             : 2024-07-25 18:18:08 UTC
Writing application                      : mkvmerge v86.0 ('Winter') 64-bit
Writing library                          : libebml v1.4.5 + libmatroska v1.7.1 / Lavf61.5.101
Encoding Gui                             : Hybrid 2024.07.24.1

Video
ID                                       : 1
Format                                   : VC-1
Format profile                           : Advanced@L3
Codec ID                                 : V_MS/VFW/FOURCC / WVC1
Codec ID/Hint                            : Microsoft
Duration                                 : 25 s 568 ms
Bit rate                                 : 17.9 Mb/s
Width                                    : 1 920 pixels
Height                                   : 1 080 pixels
Display aspect ratio                     : 16:9
Frame rate mode                          : Constant
Frame rate                               : 23.976 (23976/1000) FPS
Original frame rate                      : 23.976 (24000/1001) FPS
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Progressive
Compression mode                         : Lossy
Bits/(Pixel*Frame)                       : 0.360
Stream size                              : 54.6 MiB (98%)
Default                                  : No
Forced                                   : No

Audio
ID                                       : 2
Format                                   : Opus
Codec ID                                 : A_OPUS
Duration                                 : 25 s 575 ms
Bit rate                                 : 409 kb/s
Channel(s)                               : 8 channels
Channel layout                           : L R C Ls Rs Lb Rb LFE
Sampling rate                            : 48.0 kHz
Frame rate                               : 50.010 FPS (960 SPF)
Compression mode                         : Lossy
Stream size                              : 1.25 MiB (2%)
Writing library                          : opusenc from opus-tools 0.2-34-g98f3ddc
Language                                 : English
Default                                  : Yes
Forced                                   : No
Comment                                  : Processed by SoX
ENCODER_OPTIONS                          : --bitrate 512 --comp 10 --framesize 20 --expect-loss 0 --max-delay 1000
F:\Hybrid\64bit>MediaInfo.exe "g:\Output\Tron Legacy Sample DTS-HD 7.1.mkv"
General
Unique ID                                : 84444144661505629638357901537594742388 (0x3F8759C65F64B56329C418D6283E9674)
Complete name                            : g:\Output\Tron Legacy Sample DTS-HD 7.1.mkv
Format                                   : Matroska
Format version                           : Version 4
File size                                : 168 MiB
Duration                                 : 59 s 852 ms
Overall bit rate mode                    : Variable
Overall bit rate                         : 23.6 Mb/s
Frame rate                               : 23.976 FPS
Encoded date                             : 2024-07-25 18:22:15 UTC
Writing application                      : mkvmerge v86.0 ('Winter') 64-bit
Writing library                          : libebml v1.4.5 + libmatroska v1.7.1
Encoding Gui                             : Hybrid 2024.07.24.1

Video
ID                                       : 1
Format                                   : AVC
Format/Info                              : Advanced Video Codec
Format profile                           : High@L4.1
Format settings                          : CABAC / 4 Ref Frames
Format settings, CABAC                   : Yes
Format settings, Reference frames        : 4 frames
Format settings, GOP                     : M=1, N=12
Format settings, Slice count             : 6 slices per frame
Codec ID                                 : V_MPEG4/ISO/AVC
Duration                                 : 59 s 852 ms
Bit rate mode                            : Variable
Bit rate                                 : 23.2 Mb/s
Maximum bit rate                         : 31.0 Mb/s
Width                                    : 1 920 pixels
Height                                   : 1 080 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                                : 8 bits
Scan type                                : Progressive
Bits/(Pixel*Frame)                       : 0.467
Stream size                              : 166 MiB (98%)
Default                                  : Yes
Forced                                   : Yes
Color range                              : Limited
Matrix coefficients                      : BT.709

Audio
ID                                       : 2
Format                                   : Opus
Codec ID                                 : A_OPUS
Duration                                 : 59 s 777 ms
Bit rate                                 : 357 kb/s
Channel(s)                               : 8 channels
Channel layout                           : L R C Ls Rs Lb Rb LFE
Sampling rate                            : 48.0 kHz
Frame rate                               : 50.003 FPS (960 SPF)
Compression mode                         : Lossy
Delay relative to video                  : 6 ms
Stream size                              : 2.54 MiB (2%)
Writing library                          : opusenc from opus-tools 0.2-34-g98f3ddc
Language                                 : English
Default                                  : Yes
Forced                                   : No
Comment                                  : Processed by SoX
ENCODER_OPTIONS                          : --bitrate 512 --comp 10 --framesize 20 --expect-loss 0 --max-delay 1000

Maybe try whether it makes a difference if you use 512 as bitrate.

Cu Selur
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Messages In This Thread
OPUS 7.1 audio problem (?) - by shazzla - 25.07.2024, 11:38
RE: OPUS 7.1 audio problem (?) - by Selur - 25.07.2024, 20:24
RE: OPUS 7.1 audio problem (?) - by shazzla - 26.07.2024, 19:45
RE: OPUS 7.1 audio problem (?) - by Selur - 27.07.2024, 06:20
RE: OPUS 7.1 audio problem (?) - by shazzla - 28.07.2024, 06:03
RE: OPUS 7.1 audio problem (?) - by Selur - 28.07.2024, 06:11

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