Hi Darcy, this is golden. I have a hardware mixer so haven't had cause to play 
with this much, but I'll save this info should I ever need it. Thanks for 
writing it up so clearly. Really great stuff.
Jonathan Mosen
Mosen Consulting
Blindness technology eBooks, tutorials and training
http://Mosen.org

> On 23/01/2015, at 10:15 pm, Darcy Burnard <dhsda...@gmail.com> wrote:
> 
> Hi.  Earlier tonight, I listened to Jonathan Mosen's excellent demo of the 
> new Audio Hijack 3.  Jonathan mentioned that it was possible to record just 
> VoiceOver and the microphone without recording system audio.  Well I managed 
> to accomplish this, so I thought I'd write up how I did it, in case other 
> people may want to do this.
> My goal was to have three output files.  I wanted an isolated VoiceOver 
> track, an isolated microphone track, and a mix of the two.  I probably would 
> only ever need the mix, but if the levels were really uneven, I could fix it 
> later with the isolated tracks.  Also, I wanted to ensure that while I was 
> recording, I didn't hear the mic echoing back.  
> 
> In order to record VoiceOver, you need two application source blocks.  One 
> for VoiceOver, and one for com.apple.speech.  If you just do VoiceOver, all 
> you get are the VO sound effects.  In order to select those apps, when you're 
> in the pop over for the source block, and you're focussed on the choose 
> application popup button, route your mouse there, and do an option click.  
> This shows you all the running applications that are normally hidden.  Note 
> that when you set up those two source blocks, you need to make sure the "fill 
> gaps with silence" checkbox is checked in the advanced section of the pop 
> over.  If you don't do this, the audio from VO and the audio from your mic 
> will quickly go out of sync.
> 
> I think the best way to explain the session will be to first describe how it 
> works, followed by the block layout with co-ordinates.  First we have our two 
> VO source blocks. These are arranged vertically.  They are both connected to 
> our output device block.  This ensures that we can hear VoiceOver once the 
> session is running.  This output block, goes to a record block.  You might 
> change the output file name created by this block to something like VoiceOver.
> 
> A few rows down from those blocks, we have our microphone source block.  This 
> connects to a second record block. You might have the files created by this 
> block called something like Microphone.  
> Between these two sections of blocks, we have a third record block.  Our 
> other two record blocks connect here.  Call the files created by this block 
> something like Mixed.  
> 
> So here is the actual block layout for the session.  
> x1 y1: application source block: com.apple.speech
> x2 y1: device output block: probably your headphones
> x3 y1: record block, VoiceOver
> x1 y2: application source block: VoiceOver
> x4 y2: record block, Mixed
> x1 y4: device source block: microphone
> x2 y4: record block, Microphone
> 
> If you lay out the blocks like that, all the connections should happen 
> properly.
> 
> Well hopefully that made at least some sort of sense.  If it didn't, it's 
> probably my fault, as I'm writing this at 4 in the morning.  Which now that I 
> think about it, probably wasn't one of my brightest ideas.
> Darcy
> 
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