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+--- Thread: [HELP] OPUS 7.1 audio problem (?) (/thread-3788.html)
OPUS 7.1 audio problem (?) - shazzla - 25.07.2024
Greetings !
I did an x265 conversion with OPUS 7.1 and OPUS 5.1 audio.
The resulting .mkv heavily stutters with the 7.1 OPUS audio. If i switch to 5.1 ,everythings fine.
With 7.1 audio ,CPU usage is ~30 %...
No matter what player i use. Never experienced like this before....
Any idea guys ?
Some infos :
Hybrid : V2024.06.09.1
CPU : i5-6600
RAM : Much more than enough
Audio 1 source : TrueHD/Atmos Audio English 4944 kbps 7.1+11 objects / 48 kHz / 4304 kbps
Audio 2 source : Dolby Digital Audio 640 kbps 5.1 / 48 kHz / 640 kbps
Any errors : Nope
Sample : Cant upload ,due to copyright laws.
Other infos from player :
Format : Matroska
Format version : Version 4
File size : 2.15 GiB
Duration : 2 h 10 min
Overall bit rate : 2 361 kb/s
Encoded date : UTC 2024-06-17 05:35:38
Writing application : mkvmerge v83.0 ('Circle Of Friends') 64-bit
Writing library : libebml v1.4.5 + libmatroska v1.7.1
Encoding Gui : Hybrid 2024.05.11.1
Video #1
ID : 1
Format : HEVC
Format/Info : High Efficiency Video Coding
Format profile : Main 10@L4.1@High
Codec ID : V_MPEGH/ISO/HEVC
Duration : 2 h 10 min
Bit rate : 1 873 kb/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 : 10 bits
Bits/(Pixel*Frame) : 0.038
Stream size : 1.70 GiB (79%)
Writing library : x265 3.6+13-9a75b5947:[Windows][GCC 13.2.0][64 bit] 10bit
Default : Yes
Forced : Yes
Color range : Limited
Color primaries : BT.2020
Transfer characteristics : PQ
Matrix coefficients : BT.2020 non-constant
Audio #2
ID : 2
Format : Opus
Codec ID : A_OPUS
Duration : 2 h 10 min
Bit rate : 245 kb/s
Channel(s) : 8 channels
Channel layout : L
Sampling rate : 48.0 kHz
Frame rate : 50.000 FPS (960 SPF)
Compression mode : Lossy
Stream size : 229 MiB (10%)
Writing library : opusenc from opus-tools 0.2-34-g98f3ddc
Language : English
Default : Yes
Forced : No
Comment : Processed by SoX
ENCODER_OPTIONS : --bitrate 352 --comp 10 --framesize 20 --expect-loss 0 --max-delay 1000
Audio #3
ID : 3
Format : Opus
Codec ID : A_OPUS
Duration : 2 h 10 min
Bit rate : 239 kb/s
Channel(s) : 6 channels
Channel layout : L R C Ls Rs Cb LFE
Sampling rate : 48.0 kHz
Frame rate : 50.000 FPS (960 SPF)
Compression mode : Lossy
Delay relative to video : 11 ms
Stream size : 223 MiB (10%)
Writing library : opusenc from opus-tools 0.2-34-g98f3ddc
Language : Hungarian
Default : No
Forced : No
Comment : Processed by SoX
ENCODER_OPTIONS : --bitrate 256 --comp 10 --framesize 20 --expect-loss 0 --max-delay 1000
And thats all.... ( At the moment, I'm away from my PC.)
RE: OPUS 7.1 audio problem (?) - Selur - 25.07.2024
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 1000F:\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 1000Maybe try whether it makes a difference if you use 512 as bitrate.
Cu Selur
RE: OPUS 7.1 audio problem (?) - shazzla - 26.07.2024
Thanks for the quick reply/test.
An "interesting/funny" fact : the mentioned .mkv plays fine even on a Samsung A25...
Investigating more....
Btw encoding @512 kbps : didnt tried,im on it.
RE: OPUS 7.1 audio problem (?) - Selur - 27.07.2024
What is the player&co setup that stutters? Does it support opus 7.1?
RE: OPUS 7.1 audio problem (?) - shazzla - 28.07.2024
SOLVED !
I cant imagine how,but the players audio playback settings were changed.
Everythings fine now! Banal. Damn.
Selur,many thanks for your efforts!
RE: OPUS 7.1 audio problem (?) - Selur - 28.07.2024
I'm happy you figured out what was causing the problem.
Cu Selur