tlw
The two mic system is used to make a recording of an audio source and is one usage of mid/side techniques.

However any stereo audio can be split into its mid and side content then processed as separate mid and side content and finally reassembled into stereo again. One example might be "centreing" the bass frequencies in a stereo track. Convert to mid/side via channel tools or a similar processor then high pass the side to cut the low frequencies while boosting them in the mid channel if necessary.

Re-convert to stereo and there you are, the bass content is now centred.

This is shown in those X1 Advanced vids I've been blathering about. Been meaning to try it to see it it helps some of my low freq problems.

Beepster

Keni
Interesting...

My use and understanding of mid/side was to use two mics... One which was a figure 8 pattern turned 90degrees off axis to the sound with the other mic (cardioid) directly facing the sound source... Then blending the two...

Is that not part of it?

Keni

I think that would be recording Mid-Side from the start. Doing the stuff discussed above would be for turning stereo signals into M/S and vice versa.
 
I'm still very much trying to wrap my head around all this type of stuff (and really should sit down with some tuts and Channel Tools for a while to REALLY get a handle on it all) so this is a cool thread. Methinks I may bookmark it.

Thanks Beepster...

As an old analog/tape engineer, I've done this many times and couldn't understand the need of special processing to accomplish... The off axis mic is far warmer (ribbons are very popular here) and allows a blend to create depth or width depending on the pan...

So what you're suggesting makes a lot of sense... Computer processing to reduce presence and very fractional delay... I'll have to try this as I have not before...

Keni

tlw
The two mic system is used to make a recording of an audio source and is one usage of mid/side techniques.

However any stereo audio can be split into its mid and side content then processed as separate mid and side content and finally reassembled into stereo again. One example might be "centreing" the bass frequencies in a stereo track. Convert to mid/side via channel tools or a similar processor then high pass the side to cut the low frequencies while boosting them in the mid channel if necessary.

Re-convert to stereo and there you are, the bass content is now centred.

Thanks tlw...

I think I understand... A recent tool using computer processing to convert a typical stereo recording so that it sounds and operates as if it were m/s...

Keni

scook
Here is a video describing M/S using Pro-Q and a bit of history about M/S recording https://youtu.be/NilfCElGJ2c
 

Thanks scook...

I wish I could watch but I'm too severely web limited...

Does it describe what I mentioned above regarding the figure 8 plus cardioid? I though that was where the concept came?

Keni

Yes

scook
Yes

Thanks scook... I just wanted to know that my understanding was correct.