Video with 5.1 sound -> mono mix modes = garbage
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05-07-2010 12:48 PM
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Human being with feelings
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Video with 5.1 sound -> mono mix modes = garbage
REAPER 3.52pre1
This video
Code:
Length: 1:39:43.039
Video: 1280x688@23.98fps, Aspect=1.00, Decoding format=RGB
Audio: 48000Hz 6ch 16bps
Using FFmpeg DLL decoder v52.61.0 (--enable-shared --disable-static --enable-memalign-hack --cross-prefix=i686-mingw32- --cc=ccache-i686-mingw32-gcc --arch=i686 --target-os=mingw32 --enable-runtime-cpudetect --enable-avisynth --enable-gpl --enable-version3 --enable-bzlib --enable-libgsm --enable-libfaad --enable-pthreads --enable-libvorbis --enable-libtheora --enable-libspeex --enable-libmp3lame --enable-libopenjpeg --enable-libxvid --enable-libschroedinger --enable-libx264 --enable-libopencore_amrwb --enable-libopencore_amrnb)
Video: h264, yuv420p, 1280x688 [PAR 1:1 DAR 80:43], 1849 kb/s
Audio: aac, 48000 Hz, 5.1, s16, 283 kb/s
Code:
General
Format : MPEG-4
Format profile : Base Media
Codec ID : isom
File size : 1.49 GiB
Duration : 1h 39mn
Overall bit rate : 2 136 Kbps
Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4.1
Format settings, CABAC : Yes
Format settings, ReFrames : 8 frames
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 1h 39mn
Bit rate mode : Variable
Bit rate : 1 850 Kbps
Maximum bit rate : 8 704 Kbps
Width : 1 280 pixels
Height : 688 pixels
Display aspect ratio : 1.860
Frame rate mode : Constant
Frame rate : 23.976 fps
Resolution : 8 bits
Colorimetry : 4:2:0
Scan type : Progressive
Bits/(Pixel*Frame) : 0.088
Stream size : 1.29 GiB (87%)
Writing library : x264 core 80 r1376M 3feaec2
Encoding settings : cabac=1 / ref=8 / deblock=1:0:0 / analyse=0x3:0x113 / me=umh / subme=9 / psy=1 / psy_rd=1.0:1.0 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=2 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-4 / threads=3 / sliced_threads=0 / slices=4 / nr=0 / decimate=1 / mbaff=0 / constrained_intra=0 / bframes=4 / b_pyramid=0 / b_adapt=2 / b_bias=0 / direct=1 / wpredb=1 / wpredp=2 / keyint=24 / keyint_min=2 / scenecut=40 / rc_lookahead=24 / rc=2pass / mbtree=1 / bitrate=1850 / ratetol=1.0 / qcomp=0.60 / qpmin=10 / qpmax=51 / qpstep=4 / cplxblur=20.0 / qblur=0.5 / vbv_maxrate=40000 / vbv_bufsize=30000 / ip_ratio=1.40 / aq=1:1.00
Audio
ID : 2
Format : AAC
Format/Info : Advanced Audio Codec
Format version : Version 4
Format profile : LC
Format settings, SBR : No
Codec ID : 40
Duration : 1h 39mn
Bit rate mode : Variable
Bit rate : 288 Kbps
Maximum bit rate : 354 Kbps
Channel(s) : 6 channels
Channel positions : Front: L C R, Side: L R, LFE
Sampling rate : 48.0 KHz
Stream size : 202 MiB (13%)
gives me just garbage audio output when setting the item to
Mono (Downmix)
Mono (Left)
Mono (Right)
output. Sound becomes crackling and full of digital artefacts.
FIXED (5.11pre15)
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Issue Details
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Project
Deprecated REAPER issue tracker
Category Audio recording and playback
Status Fixed
Priority 8
Affected Version 3.51
Closed Version 5.11
Yes votes
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Assigned Users
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Tags
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12-20-2015 07:35 PM
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Human being with feelings
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FIXED (5.11pre15)
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