ok.. this is a bit tough. It's obvious that some of the frquencies are missing. I do not think a SBD recording wuld have that problem - unless the SBD's master EQ was pulled down and rolling them off on purpose for PA reasons, etc...
I do not see the obvious blocky artifacts you normally see in MP3. Or AC3, for that matter (which is usually still blocky, just not as much as MP3).
Here is a 100% lossless audio slice from a studio album, 1 sec span:
and here is your audio:
The texture is very similar. It isn't as clean, but it is a live recording against a studio recording.
I really can't say if this is lossy or not. I do not think it is - but what happened to the high frequencies?
I'm going to get another staff member to come hava a look at this and see what he thinks.
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