Audio bug (?) solved by reverting from 1.1.3 to 1.1.2

[iham]

Hi there.

Before I put on the whiny voice, first a big "thank you" to the developers of Perian, who have made QT much more like it should be -- ie., like something that "just works".

Now here's what appears to be a bug which I could only solve by reverting to 1.1.2:

When exporting a DTS audio track in an MKV movie container to AAC stereo in an MP4 container, speech and sound effects would all be assigned to the right channel, but music would still be in stereo. Whether any audio information was lost in the process I don't know: by which I mean that I can't say if the right channel has all the left channel's speech and sound effects added to it, or whether this was just missed out entirely.

I can't say that I've exhaustively tried every container / export option, except to say that this happens both on a PPC and an Intel Mac, that switching the Perian preference pane setting from stereo to multichannel output made no difference, and that exporting the audio into a .mov file also produced the same result

The "solution" of reverting to 1.1.2 is a relatively painless one, for me at least, as I don't (knowingly!) miss any of the features introduced with 1.1.3. But maybe it's the latter that actually handles the audio correctly, and 1.1.2 that mishandles it in a way that just happens to work for my needs.

So, is the real bug in 1.1.2, or in 1.1.3?

[Mr VacBob]

That's interesting, as I don't remember any related commits. Just to narrow down the problem, can you save the MKV as a MOV (using Save as... -> reference movie) under 1.1.2, install 1.1.3, and then try to export that? That way we can see if the problem is in MKV import or DTS decoding.

Either way, post the file (or 5-10MB of it) too.

[iham]

Apologies - I can't do this anytime soon. Will do ASAP.