From the course: Microphone Techniques: Essentials
Unlock the full course today
Join today to access over 23,500 courses taught by industry experts.
Frequency variations
From the course: Microphone Techniques: Essentials
Frequency variations
- [Narrator] It's important to keep in mind that not all frequencies share the same pick up pattern on the same microphone. Typically, it's one kilohertz that defines the overall shape of the polar pattern but some frequencies might have omnidirectional patterns and others might have a completely different shape. Notice on this polar graph that there are two sides. And each side's considered to be symmetric across the zero degree line. So let's look at this microphone that essentially has a hypercardioid polar pattern but if we look at the 16 kilohertz line which is the dotted line on this side, it's pretty much omnidirectional. It doesn't really reject much from behind the microphone. So that microphone at 16 kilohertz won't reject much sound no matter which direction is comes from. We can also look at the eight kilohertz line which is this line right here. And that's really a different shaped pick up pattern. It's nothing like the one kilohertz line and it's nothing like the 16â¦
Practice while you learn with exercise files
Download the files the instructor uses to teach the course. Follow along and learn by watching, listening and practicing.
Contents
-
-
-
-
-
(Locked)
Reading the frequency response chart4m 36s
-
(Locked)
The proximity effect1m 30s
-
(Locked)
Evaluating the Neumann KM 84 and KM 1841m 52s
-
(Locked)
Evaluating the Shure SM582m 27s
-
(Locked)
Evaluating the Royer R-122 MKII2m 14s
-
(Locked)
Evaluating the Audix D61m 20s
-
(Locked)
Evaluating the Shure Beta 872m 9s
-
(Locked)
Blind evaluations of three mics3m 17s
-
(Locked)
Polar graphs and sensitivity2m 12s
-
(Locked)
Polar pattern shapes5m 7s
-
(Locked)
Demonstration of polar patterns4m 32s
-
(Locked)
Frequency variations2m 31s
-
(Locked)
Sensitivity6m 46s
-
(Locked)
Impedance1m 3s
-
(Locked)
Equivalent noise1m 38s
-
(Locked)
Maximum sound pressure level (SPL)4m 8s
-
(Locked)