Dual Mono audio recording with the V1U at DVinfo.net

Arturo Glass · November 23rd, 2007, 11:16 PM

I have the onboard Sony mic on channel 1 and an external, phantom powered shotgun mic on channel 2. In order to record 2 separate mono audio tracks, to later be able to use as separate elements in a NLE, do I need to have the CH1•CH2 option selected or the lower option CH1 on the "Record Channel Tracks" switch? Does it matter? Does the first option automatically (and irreversibly) merge the record of the 2 mics into a stereo track?

Seth Bloombaum · November 24th, 2007, 02:15 AM

Quote:

Originally Posted by Arturo Glass

In order to record 2 separate mono audio tracks, to later be able to use as separate elements in a NLE, do I need to have the CH1•CH2 option selected or the lower option CH1 on the "Record Channel Tracks" switch?...

Lower option "Ch1" will do what you want.

Quote:

Originally Posted by Arturo Glass

...Does it matter? Does the first option automatically (and irreversibly) merge the record of the 2 mics into a stereo track?

It matters! The first option records what is present at the channel 1 input on both channels.

This sort of thing becomes instantly recognizable when one is monitoring with headphones, recommended in all shooting situations when audio matters.

Arturo Glass · November 24th, 2007, 09:52 AM

Thanks. Then what does the CH1•CH2 option do? Merge the recording of both mics into one set of stereo tracks?

Is there a way of separating them after the fact if something has been recorded in this format already?

Seth Bloombaum · November 24th, 2007, 12:04 PM

Quote:

Originally Posted by Arturo Glass

Thanks. Then what does the CH1•CH2 option do? Merge the recording of both mics into one set of stereo tracks?

Quote:

Originally Posted by Seth Bloombaum

The first option records what is present at the channel 1 input on both channels.

Quote:

Originally Posted by Arturo Glass

Is there a way of separating them after the fact if something has been recorded in this format already?

No. If you've recorded something with the selection of CH1•CH2 then you only have one source, one mic, recorded on both channels.

Arturo Glass · November 24th, 2007, 12:24 PM

Where I'm confused is because I recorded some footage with the CH1•CH2 option selected, but in my FCP timeline each track shows different waveform patterns. But if they were recorded from the same mic, why would they have different patterns?

Seth Bloombaum · November 24th, 2007, 08:21 PM

Sorry, I can't answer that one for you. Do they sound the same or like two different mics?

Ron Little · November 25th, 2007, 08:49 AM

If you have a single mic cam set to Ch1 & Ch2, gain set to manual, and different settings on each channel then one wave form will look smaller than the other.

Like Seth said you should be using head phones.

I do this all the time at wedding receptions I have the wireless shotgun plugged into Ch 1 and the on camera mic on Ch2.

when shooting dancing and such I have the wireless on a mic stand picking up the PA on Ch1, and ambient sound on Ch2.

When they toast I switch to Ch1 & 2 and record on both from the shotgun. My assistant will move the mic to the most appropriate spot to get the best audio. Hope this helps.

Arturo Glass · November 25th, 2007, 10:21 AM

It does, thanks Ron.

November 23rd, 2007, 11:16 PM	#1
Arturo Glass Regular Crew Join Date: Oct 2007 Location: Los Angeles, CA Posts: 29	Dual Mono audio recording with the V1U I have the onboard Sony mic on channel 1 and an external, phantom powered shotgun mic on channel 2. In order to record 2 separate mono audio tracks, to later be able to use as separate elements in a NLE, do I need to have the CH1•CH2 option selected or the lower option CH1 on the "Record Channel Tracks" switch? Does it matter? Does the first option automatically (and irreversibly) merge the record of the 2 mics into a stereo track?

November 24th, 2007, 09:52 AM	#3
Arturo Glass Regular Crew Join Date: Oct 2007 Location: Los Angeles, CA Posts: 29	Thanks. Then what does the CH1•CH2 option do? Merge the recording of both mics into one set of stereo tracks? Is there a way of separating them after the fact if something has been recorded in this format already?

November 24th, 2007, 12:24 PM	#5
Arturo Glass Regular Crew Join Date: Oct 2007 Location: Los Angeles, CA Posts: 29	Where I'm confused is because I recorded some footage with the CH1•CH2 option selected, but in my FCP timeline each track shows different waveform patterns. But if they were recorded from the same mic, why would they have different patterns?

November 24th, 2007, 08:21 PM	#6
Seth Bloombaum Inner Circle Join Date: Sep 2003 Location: Portland, Oregon Posts: 3,420	Sorry, I can't answer that one for you. Do they sound the same or like two different mics?

November 25th, 2007, 08:49 AM	#7
Ron Little Major Player Join Date: Feb 2003 Location: Pensacola Fl. Posts: 627	If you have a single mic cam set to Ch1 & Ch2, gain set to manual, and different settings on each channel then one wave form will look smaller than the other. Like Seth said you should be using head phones. I do this all the time at wedding receptions I have the wireless shotgun plugged into Ch 1 and the on camera mic on Ch2. when shooting dancing and such I have the wireless on a mic stand picking up the PA on Ch1, and ambient sound on Ch2. When they toast I switch to Ch1 & 2 and record on both from the shotgun. My assistant will move the mic to the most appropriate spot to get the best audio. Hope this helps.

November 25th, 2007, 10:21 AM	#8
Arturo Glass Regular Crew Join Date: Oct 2007 Location: Los Angeles, CA Posts: 29	It does, thanks Ron.