Contents
What is MS decode?
Decoding. MS decoding requires what is called a “sum-and-difference matrix”. To get the sum you add one side signal to the mid signal, and to get the difference you subtract the other side signal from the mid signal by shifting its polarity 180º. It’s easier to do than it sounds.
How do you make a mid side recording?
The “Mid” microphone is set up facing the center of the sound source. Typically, this mic would be a cardioid or hypercardioid pattern (although some variations of the technique use an omni or figure-8 pattern). The “Side” mic must be a figure-8 pattern. This mic is aimed 90 degrees off-axis from the sound source.
What does MS mean for speakers?
mid-side
MS (mid-side) stereo is a popular stereo microphone technique because of its good spatial imaging, mono compatibility, surround-sound compatibility, and ability to adjust the stereo field in post production.
What’s the mic polar pattern employed by the Blumlein technique?
The Blumlein method uses the two mic elements angled at 90 degrees and mounted in close proximity to each other along the vertical axis. With the Blumlein technique, a sense of realism is created. It’s as if the listener is there in the acoustic sound field.
What happens when you move a ribbon mic off the Axis?
Moving farther to 45 degrees off-axis can result in a nicely warmer tone. Many ribbons mics actually get a little bit brighter when moving 45 or so degrees off-axis. This effect primarily occurs at high frequencies (e.g. greater than 5kHz) where the wavelength of sound is comparable to the size of the microphone’s diaphragm.
Can a sphere mic be moved off axis?
Of course, you can still physically move the Sphere microphone off-axis, just as you would with a conventional mic. When recording a point source (e.g. a vocalist, assuming minimal chest radiation and a relatively dry room), then the virtual axis control will produce results that are very close to physically rotating the mic.
When to use the m / s mic recording technique?
The M/S microphone recording technique is used extensively in broadcast, largely because properly recorded M/S tracks are always mono-compatible. M/S is also a popular technique for studio recording, and its convenience and flexibility make it a good choice for live recording as well.
How are the mics positioned in a surround sound system?
The rear array consists of two cardioids spaced about 1.8 meters (6 ft) apart. The left and right mics are angled at 45° from the center microphone and the rear mics at 135°. The surround microphones are positioned at the critical distance, the point at which the direct sound and reverberant field is equal.