Jay Gladwell wrote on 8/30/2011, 9:28 AM

The two enclosed files are the first 30 seconds of Isaac Hayes' Theme From Shaft. The first file contains both left and right channels. When you listen, you will hear the guitar from the left channel "bleeding" over into the right channel, almost like a subtle reverb.

The second file contains the right channel only to separate it out, so you can hear it a bit better.

My question is, was this an anomaly of the analogue recording process or was this done on purpose? Could this is be duplicated today? If so, how?



Former user wrote on 8/30/2011, 9:40 AM
That kind of stuff was done in lots of recordings. Remember, most music normally is originally recorded as mono tracks. In this case they could have added the reverb and panned it a bit to the other channel, or could have recorded with two mikes, one at a distance to create a reverb effect.

Easily duplicated by either using delays, or mutlitracking the same track.

Dave T2
john_dennis wrote on 8/30/2011, 1:04 PM
I wouldn't be too surprised if some of what you hear was bleed into the open drum mics. Before we had the technology to isolate every instrument to the point that they exist in a vacuum, recordings were frequently made with close mics in more open layouts where the musicians could actually interact with one another (and groove).

I'm unfamiliar with how this session was done, but I have some live stage recordings that have similar cross bleed when one listens to the channels in isolation.

None of this is meant to detract from the talent of the person who mastered the tracks and created the soundstage. Whatever they were paid, it wasn't enough in some cases.
Chienworks wrote on 8/30/2011, 1:26 PM
I'd start with the simplest explanation, which is that the right microphone picked up some of the guitar at a greater distance away.

Almost ALL the recording i do is live two-track stereo (though i sometimes use four mics, but the process is still the same in the end). Every mic in the room picks up all the sound. Some sounds will be much closer to some mics so they end up primarily in that channel, but there's no isolation.
musicvid10 wrote on 8/30/2011, 1:27 PM
I agree that it's probably bleed, but with unintended good results. A lot of this stuff was done deliberately by Pink Floyd and on later Beatles albums, but this sounds like it was in the recording, but probably not from the kick mic (low frequencies are rolled off).
john_dennis wrote on 8/30/2011, 3:36 PM
"but probably not from the kick mic (low frequencies are rolled off)."

Most likely the mic on the hi-hat since it was the focus of the introduction. I can just hear the engineer now, "Could I get some more hi-hat?" and "How 'bout some more of that guitar with the wah-wah pedal?"

Some day, over a cold one, I'll have to tell the story of the gig I was on where the guitar player and the bass player showed up with wah-wah pedals. But I digress...
farss wrote on 8/30/2011, 4:14 PM
"Could this is be duplicated today? If so, how?"

Seeing as how no one has specifically answered how you might do it today.

If you have installed Sound Forge then in Vegas you should find a FX called "MultiTapped Delay". With that you can configure the number of delay taps, the delay time, the amplitude and how they are panned.

Taking a mono recording, pan it hard left in the track header.
Create a new bus, feed the track to that bus. Add the Multitapped delay FX to the bus.
Now configure the FX to have one tap, pan it hard right. Adjust delay and amplitude to suit. You can add more taps and adjust to taste.

One thing I like about the Multitapped Delay is it has a simple graphic that shows you the taps. Like a lot of the original SoFo plugs it is simple, to the point and gets the job done without all the CPU munching bling of a lot of the more modern FXs.

ChristoC wrote on 8/30/2011, 4:29 PM
Jay> you will hear the guitar from the left channel "bleeding" over into the right channel, almost like a subtle reverb.

Not so subtle! Great effect though. To me that sounds like the guitar is sent to a short reverb or a chamber, most likely with a pre-delay, & the return panned fairly hard right.
Very common thing to do 'in the era' - there's no rules!
Jay Gladwell wrote on 8/31/2011, 7:31 AM

Thank you, Bob, and everyone that replied.

Geoff_Wood wrote on 8/31/2011, 8:56 PM
Guitar quite possibly done at a different time and place to the drums, so doubt it. Note also that everything that is not panned hard to one side ( like almost everything) will be present in both channels.

But it is common (near universal) to pan a delay fx away from the instrument's prime spatial location.

So (without actually listening) I'd say no, probably dliberate and not bleed or anomally.