I have captured from an anaolgue source with mono audio only uing Studio 7 and imported to V4. Is there any easy way to create a kind of stereo track from the mono one within V4?
There are lots of interesting techniques. Here's two:
Place the mono source on two separate audio tracks. Pan one hard left and the other hard right. Apply Graphic EQ to both tracks and set alternate sliders high and low on one track, low and high on the other. This sends some frequencies to one channel and some to the other. Adjust to taste. Totally artificial, but it does give some spatial presence.
Convert the track to stereo. Of course, it will still be identical signal on both channels. Add a small amount of very short reverb. Most reverb plugs affect the two channels differently so you'll get some differentiation between them. This isn't as large a change as the previous method, but may sound a little more natural.
Similiar to Chien's reverb suggestion, if you duplicate your mono track to make 2 mono tracks, try offsetting one track by a very small amount to create a bit of a delay. A little bit goes a long way. This will widen the sound a bit. You may find that you need to adjust the relative volume between the tracks, as the delayed signal might sound a bit fainter.
G
P.S. Ever hear one of those old albums from the early/mid 60s with "Electronically Reprocessed to Simulate Stereo" on the cover? The ones I heard were hilariously bad sounding. Usually the original mono would be in one speaker, and some old spring reverb put in the other speaker. I had some old STones records from then, back when some labels would make 2 versions, one true stereo and the other, um, "reprocessed."
BTW way, while on the subject of old records does anyone know anything about quadraphonic vinyl LPs. I have a couple and never actually heard them on quad equipment. Wre they really worth the money?
I had one quadraphonic LP. According to the spiel on the jacket, the front left & right channels were encoded in the physical shape of the groove (as with a normal record) and the rear right & left channels were magnetically stored in a substrate embedded in the vinyl. Seems like a pretty ridiculous method to me. If you're going to go magnetic you might as well just use 4 track tape.
I have no idea how the rear channels sound though. I never encountered a quadraphonic turntable to play it on. The main stereo channels sounded fine on my stereo turntable.
Put the mono file on 2 tracks. Set the first track level to 0dB. Invert the phase of the second track and mute it to block it from the output bus.
Send a 0dB feed from the first track to Bus A, and a 0dB feed from the second track to Bus B.
Apply a 30mS Simple Delay to Bus A and B. Apply a high pass filter to Bus A, rolling off at around 100 Hz (may not be necessary, depending on wave audio content).
Unlock the faders for Bus A and B, and set A-Right and B-Left to -infinity. Fade up A-Left and B-Right until the stereo effect is what you want. (Ideally, these 2 would be locked together, but I couldn't find a way to do it.)
Adjust overall volume using the Master fader.
This works pretty well and you can hear the sound opening up, but don't overdo the Bus A and B levels. Also, you might need to adjust the delay value depending on the audio material.
Sound Forge has a good pseudo stereo FX with several well thought out presets. I thought that it would be accessible from Vegas once you had both apps installed, but in the rush I was I couldn't verify it. Anyway, Sound Forge is worth its salt.
Tor