how to convert mono to stereo

screenryan wrote on 4/10/2002, 2:51 PM

I shot some video over the weekend using a friend's XL1. some of the time we had 2 mics plugged in and sometimes we only had 1 mic plugged in. for the 1 mic shots, the is only audio in the left channel. Can I somehow turn this into stereo either by panning the left channel over to the middle or by copying the left channel into the right channel? I'd like to be able to do this in VideoFactory, if it has the capability since I don't have any fancy audio editing software.
thanks,
Ryan

Comments

Chienworks wrote on 4/10/2002, 3:11 PM

Insert a Pan envelope on the audio track and pan it 50% to the right. The signal will now come out of both channels evenly, but at a slightly lower volume. Insert a volume envelope and increase to about +5.4dB to compensate for the lower volume due to the panning. (Yes, theoretically it should be 6dB, but watching the peak meters showed some distortion at 6; 5.4 seemed to give the same level.)

screenryan wrote on 4/10/2002, 3:31 PM

I'll give that a shot when I get home tonight.
thanks

Grazie wrote on 4/10/2002, 10:04 PM

Yup Screenryan - You can do this, I've done it. You can also get something like echo by copying the "audio" clip either over or onto another track and offsetting it by a a very small amount. See my thread:

http://www.sonicfoundry.com/forums/ShowMessage.asp?MessageID=98470&Replies=2&Page=2

Try using that old Windows "Sound Recorder" utility. That gives echo as well as the ability to speed up and slow down (can lead you to some dramtic as well as silly and amusing results!)You can also put the whole audio into reverse! - yeh you can do this in VF but you never know what you can do until you try it. Some of the sound effects on the web can be imported and play around with within VF.

Good and "pacey" sound support is sometimes overlooked - that goes for comentaries aswell. However keep it simple - sometimes less is more

I'd like to hear of your results, and if you found some auxillory tweaks to your approach. I do have some "fancy audio editing software", but have found the ease with which I can use the functions within VF are simple. Don't forget VF is out of the Sound Forge stable - when I thought about that for a second....

Regards Grazie