Beiträge von Henk

I confirm that the rendering of Voukoder is correct. The cause for hearing stereo in stead of 5.1 yesterday was probably my own mistake, viz incorrect configuration of the sound card. I disabled the So4compoundplug plug-in and indeed VP17 assigns the audio channels correctly now. So everything seems to work fine.

But MediaInfo (17.12) keeps reporting 2 audio channels, while it reports 6 channels when encoding with Sony AVC/MVC. Attached is the complete report, notice the red lines:

General

Complete name : E:\Henk\compu en video-allerlei\Vegas Pro\Kathmandu_Voukoder_test_2.mp4

Format : MPEG-4

Format profile : Base Media

Codec ID : isom (isom/iso2/avc1/mp41)

File size : 32.8 MiB

Duration : 1 min 0 s

Overall bit rate : 4 581 kb/s

Writing application : Voukoder (VEGAS)

Video

ID : 1

Format : AVC

Format/Info : Advanced Video Codec

Format profile : High@L4

Format settings : CABAC / 4 Ref Frames

Format settings, CABAC : Yes

Format settings, RefFrames : 4 frames

Codec ID : avc1

Codec ID/Info : Advanced Video Coding

Duration : 1 min 0 s

Bit rate : 4 234 kb/s

Width : 1 920 pixels

Height : 1 080 pixels

Display aspect ratio : 16:9

Frame rate mode : Constant

Frame rate : 25.000 FPS

Color space : YUV

Chroma subsampling : 4:2:0

Bit depth : 8 bits

Scan type : Progressive

Bits/(Pixel*Frame) : 0.082

Stream size : 30.3 MiB (92%)

Writing library : x264 core 157 r2981 b5bc5d6

Encoding settings : cabac=1 / ref=3 / deblock=1:0:0 / analyse=0x3:0x113 / me=hex / subme=7 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=1 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-2 / threads=24 / lookahead_threads=4 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=3 / b_pyramid=2 / b_adapt=1 / b_bias=0 / direct=1 / weightb=1 / open_gop=0 / weightp=2 / keyint=250 / keyint_min=25 / scenecut=40 / intra_refresh=0 / rc_lookahead=40 / rc=crf / mbtree=1 / crf=23.0 / qcomp=0.60 / qpmin=0 / qpmax=69 / qpstep=4 / ip_ratio=1.40 / aq=1:1.00

Audio

ID : 2

Format : AAC

Format/Info : Advanced Audio Codec

Format profile : LC

Codec ID : mp4a-40-2

Duration : 1 min 0 s

Duration_LastFrame : -20 ms

Bit rate mode : Constant

Bit rate : 342 kb/s

Channel(s) : 2 channels

Channel(s)_Original : 6 channels

Channel positions : Front: L C R, Side: L R, LFE

Sampling rate : 48.0 kHz

Frame rate : 46.875 FPS (1024 SPF)

Compression mode : Lossy

Stream size : 2.45 MiB (7%)

Default : Yes

Alternate group : 1

Interestingly, when I place the rendered clip back on the timeline of Vegas Pro, I do get 6 audio tracks under the video track, playing the 6 distinct surround channels. There seems to occur some mixing somewhere.

I just tested Connector 1.1.0 on Vegas Pro 17.0. The audio of the 5.1 surround project is encoded as 2-channel stereo, all 6 channels are mixed in the stereo channel. MediaInfo reports "Channel(s): 2 channels" but also does report another line with "Channel(s)_Original: 6 channels" and the next line "Channel positions: Front: L C R, Side: L R,LFE". So there is still hope ...