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Which ADM: BS.2076-1 or BS.2076-2? #7
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I'm not sure whether there are really no features at all from BS.2076-2, but the ADM generated should be in general compliant to BS.2076-1. For ADM writing, the EBU ADM Renderer Python implementation is used and that one is currently only supporting Revision 1, see also ebu/ebu_adm_renderer#18 . |
I'm also a bit sceptical. I'd consider that an ADM 'audioProgramme' maps to an MPEG-H 'preset'. Wrong idea? Of course they recommend the use of MHAS 3.6 (which wasn't available when I embarked on the idea last autumn and - as we all know FH's ADM implementation was rather poor if not 'non-existabt' in earlier versions ;) ). |
More cross-checking made. In brief: my 5 programme ADM test-file created from scratch (14 ch wav) with wav2bw64 is not accepted by FH ADMInfoTool and therefore also cannot be converted to MPF format (error log c.f. "FH-ADMInfo-Tool-ErrorLog-Compare-wav2bw64-MHAS-ADM-EPS-Prepare-Export-14ch_wav2bw64-ADM.txt") Main issues being 14x "bit depth", "Invalid configuration of positionInteractionRange sub-elements...." plus warning. However: Very interesting results when cross-checking various ADM creations from the same assets. I suppose the main issue is that EPS and the respective ADM libraries need to be switched to BS.2072-2, wouldn't it? |
Just to make sure: which ADM version does wav2BW64 support: BS.2076-1 or BS.2076-2? (I guess the latter).
Found out that a multi-program (though channel-based only) ADM created with the present EPS does not forward the names given for audioProgrammes to MPEG-H tools (ADMInfo and EncMux - although the audio itself can get encoded).
FH IIS states, that's due to the fact EPS only works on "ADM Revision 1" (BS.2076-1).
Still have to check if wav2bw64 delivers accurate results.
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