Microphone同Wed cam的ues

An electret microphone is a relatively new type of capacitor microphone invented at Bell laboratories in 1962 by Gerhard ... The most common unidirectional mike is a cardioid microphone, so named because the sensitivity pattern is ...
en.wikipedia.org/wiki/Microphone

Microphones




Best overall frequency response makes this the microphone of choice for many recording applications. Disadvantages:. Expensive; May pop and crack when close miked; Requires a battery or external power supply to bias the plates. ...
hyperphysics.phy-astr.gsu.edu/Hbase/audio/mic.html

v4l2-tool - Tool to get webcam usage Information https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=208396 [EMAIL PROTECTED] ...
www.mail-archive.com/ [email protected]/msg14262.html