No sound when working on Cineform proxies 8 audio channels
I hope this is not a silly question...
We have defined the following proxy workflow:
- Material MXF 4K XAVC 25p with 8 audio channels (captured from Sony FS-7) is ingested on our storage. Proxies are generated using cineform codec with 8 audio channels.
- Projects and timelines are created on workstations connected to the storage. Then, medias are made offline.
- Proxies are copied on portable hard-drives along with the saved projects. Editors can work on laptop from anywhere...
Unfortunately, we have a problem when there is only sound on audio channel 3 and 4. Then no audio is available when we are working on proxies only.
I cannot figure out why this problem occurs... Cineform .mov have sound when they are played in a separate player...
I assume this is a audio mapping problem but I cannot solve it... Any clues? What am I doing wrong?
Thank you very much for your help.
Here is a media property on the server (with hi-res linked)
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File Path: \\192.168.1.103\vg1.vo1.video\LNV\Media\08_28\08_28_fs-7\XDROOT1\Clip\0828_LNV8057.MXF
Type: MXF
File Size: 2.26 GB
Image Size: 3840 x 2160
Frame Rate: 25.00
Source Audio Format: 48000 Hz - 24 bit - 8 channels
Project Audio Format: 48000 Hz - 32 bit floating point - 8 channels
Total Duration: 00:01:17:06
Pixel Aspect Ratio: 1.0
MXF File details:
Wrapper type: MXF OP1a (type: SingleItem SinglePackage MultiTrack Stream Internal)
File generated by: Sony, Mem (2.00)
AVC Unconstrained
Sony bitstream format
Proxy Media
File Path: Z:\LNV\Proxy\0828_LNV8057_Proxy.mov
Type: QuickTime Movie
File Size: 392.71 MB
Image Size: 1280 x 720
Frame Rate: 25.00
Source Audio Format: 48000 Hz - 24 bit - Mono
Project Audio Format: 48000 Hz - 32 bit floating point - Mono
Total Duration: 00:01:17:06
Pixel Aspect Ratio: 1.0
QuickTime Details:
Movie contains 1 video track(s), 1 audio track(s), 0 closed caption track(s), and 1 timecode track(s).
Video:
There are 1931 frames with a duration of 1/25th.
Video track 1:
Duration is 0:01:17:06
Average frame rate is 25.00 fps
Video track 1 contains 1 type(s) of video data:
Video data block #1:
Frame Size = 1280 x 720
Compressor = GoPro CineForm
Quality = Most (5.00)
Audio:
Audio track 1 contains 1 type(s) of audio data:
Audio data block #1:
Format = 24 bit - 8 channels
Rate = 48000 Hz
Compressor = uncompressed
Timecode:
Timecode track 1 contains 1 type(s) of data:
Timecode data block #1:
Start Time = 10:51:52:10
Reel name =
VR Projection: None
--------------------
and the same on local laptop (hi-res has been unlinked):
--------------------
Offline: User Requested
Proxy Media
File Path: /Volumes/group6disk1/proxy/0828_LNV8057_Proxy.mov
Type: QuickTime Movie
File Size: 392.71 MB
Image Size: 1280 x 720
Frame Rate: 25.00
Source Audio Format: 48000 Hz - 24 bit - Mono
Project Audio Format: 48000 Hz - 32 bit floating point - Mono
Total Duration: 00:01:17:06
Pixel Aspect Ratio: 1.0
QuickTime Details:
Movie contains 1 video track(s), 1 audio track(s), 0 closed caption track(s), and 1 timecode track(s).
Video:
There are 1931 frames with a duration of 1/25th.
Video track 1:
Duration is 0:01:17:06
Average frame rate is 25.00 fps
Video track 1 contains 1 type(s) of video data:
Video data block #1:
Frame Size = 1280 x 720
Compressor = GoPro CineForm
Quality = Most (5.00)
Audio:
Audio track 1 contains 1 type(s) of audio data:
Audio data block #1:
Format = 24 bit - 8 channels
Rate = 48000 Hz
Compressor = uncompressed
Timecode:
Timecode track 1 contains 1 type(s) of data:
Timecode data block #1:
Start Time = 10:51:52:10
Reel name =
VR Projection: None
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