24 or 32 bit?

[Shane Betts]

We're finding that, despite all settings telling us the camera is recording audio as 24 bit, the clips come into FCP as 32 bit? We're on build 17 and using R3D Data Manager to transfer from the CF cards. In fact, now that I think of it, the situation exists directly off the cards, so R3D isn't involved.

Anyone with an answer?

 

[Deanan]

Technically it's 24bit stored in 32bits and that's the way the QT wrappers expose the audio by default.

 

[Corey Steer]

Why is this the case if FCP and Avid cannot handle 32bit audio?

 

[Shane Betts]

Thanks Deenan. How can we set it to 24bit/24bit? It causes problems...

 

[Deanan]

Thanks Deenan. How can we set it to 24bit/24bit? It causes problems...

When you remake the QT wrappers in RR, set it to avid compatible audio in the menus.

 

[Shane Betts]

When you remake the QT wrappers in RR, set it to avid compatible audio in the menus.

Is there a workaround in FCP Log & Transfer?

 

[Deanan]

Is there a workaround in FCP Log & Transfer?

Will have to get back to you on that...

 

[Rob Lohman]

Why is this the case if FCP and Avid cannot handle 32bit audio?

Why do you say that? FCP has supported 32-bit audio when we first started integrating RED support. For Avid we've added the 24-bit mode as Deanan mentioned above.

FCP did not handle 24-bits properly, that's why the defaults for the QuickTime reference files is 32-bit.

 

[Rob Lohman]

Thanks Deenan. How can we set it to 24bit/24bit? It causes problems...

In what way is this causing problems for you? 32-bit has worked fine with FCP for over a year now.

 

[Reinhart]

Is there a workaround in FCP Log & Transfer?

No workaround for L&T, but we have never come up with a situation
that required it. Through extensive testing we've not seen a problem.

 

[Corey Steer]

Why do you say that? FCP has supported 32-bit audio when we first started integrating RED support. For Avid we've added the 24-bit mode as Deanan mentioned above.

FCP did not handle 24-bits properly, that's why the defaults for the QuickTime reference files is 32-bit.

No glaring problems with 32 bit in FCP, it plays fine in a 16bit and 24bit FCP sequence, it's just that the sequence doesn't have a 32bit setting and we weren't sure if we'd have any issues going forward.

Does FCP handle 24bit audio fine now?

 

[Deanan]

Thanks Deenan. How can we set it to 24bit/24bit? It causes problems...

It was Shane who said there were problems. Can you elaborate?

 

[Shane Betts]

It was Shane who said there were problems. Can you elaborate?

My aplogees Deenan. I was getting fog from editorial about the 'problem' but, as you've pointed out, it's mostly a non-issue. Now, if we can sort out sync we'll be icebox.

 

[Deanan]

My aplogees Deenan. I was getting fog from editorial about the 'problem' but, as you've pointed out, it's mostly a non-issue. Now, if we can sort out sync we'll be icebox.

Thanks. That's good to hear