[Gale Andrews <gale@au...>]

| From Sven Giermann <giermann@...> 
| Tue, 19 Feb 2013 11:00:14 +0100
| Subject: [Audacity-devel] Record a subset of Channels / preset Channel Names
> Hi Martyn,
> 
> thanks for your reply.
> Well, the extension I wrote makes most sense if you have hardware to 
> capture more than 2 channels, right. But you may test it with only two
> channels and sometimes even this might make sense, since it enhances
> the capture capabilities a little.
> Furthermore it fixes "shifted record" when you selected a different number 
> of channels than you are going to capture - this fails in the current
> release!

Hi Sven,

I'll try your patch for functionality and see if I get any of those
assertion errors you mention. But I only have two channel 
devices. 

Perhaps Ed Musgrove or a few users on the Forum who have 
multi-channel devices would be able to test for you? Also 
it would be good to test this with Forum users who currently
need to record one channel of a stereo device in stereo 
because mono recording only gives them a half volume track. 
 
But for users, you'd have to build a Windows executable.


> My next goal would be to apply the selected Record Profile to the
> Record Meter Toolbar, since this one still always displays the first
> one or two device channels. But I'm not sure when I will find time
> to implement this :(

To be honest I'd have more energy to test this if I thought it
was definitely going to have an interface. Cfg editing has its 
place, but not for this, surely? 




Gale 


 
> Extension/changes in short:
> - select the channels and their order to be captured (instead of just set the number of captured channels)
> - pre-set Name, Gain, Pan and Type (Left, Right, Mono, Stereo) of captured channels
> - insert silent channels while capture
>    (--> you can make 2 stereo tracks, one containing only the Right and the other only the Left captured channel)
> 
> Even without config modification to have record profile, you may profit from these:
> - adding the source channel number to track name when capturing more than 2 channels (i.e. "Audio track [3]")
> 
> 
> While some of the issues are just a cosmetical gimmick (which was requested as a feature) and some kind of useless for 2 channel record devices, it is very useful for multi-channel hardware.
> 
> I personally own a Tascam US-1800 16 channel device. Our vocal recordings are at channels 13 and 14. Whenever I want to re-record the vocals, I would have to capture 14 channels just to delete 12 of them after the recording finished.
> Along with naming of captured channels I added the ability to set Gain and Pan - this enables us (in our Band practises) to capture everything and to have a quick review afterwards without manually adjusting each of 12 channels. I know this doesn't save us from real mastering incl. effects and so on, but it's sufficient for a quick preview.
> 
> 
> I achieved all this by introducing record profiles. Additionally to the drop-down items with the simple number of captured channels, you are able to have named record profiles. In this step there's no GUI element to create or modify those profiles - you'll have to set them up manually in your "audacity.cfg".
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