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microphone    音标拼音: [m'ɑɪkrəf,on]
n. 扩音器,麦克风

扩音器,麦克风

microphone
麦克风;话筒;微音器 M

microphone
麦克风 微音器

microphone
n 1: device for converting sound waves into electrical energy
[synonym: {microphone}, {mike}]

microphone \mi"cro*phone\ (m[imac]"kr[-o]*f[=o]n), n. [Micro-
Gr. fwnh` sound, voice: cf. F. microphone.] (Physics)
An instrument for converting sounds into electrical signals,
for the purpose of recording or amplifying the sounds. It
produces its effects in various ways, as for example by the
changes of intensity in an electric current, occasioned by
the variations in the contact resistance of conducting
bodies, especially of imperfect conductors, under the action
of acoustic vibrations. Other forms of microphone may use
changes in capacitance or other phenomena to transduce the
sounds into electrical signals.

Note: The electrical signals produced in a microphone may be
transmitted to recording or amplifying equipment
through a conducting wire, or by transmission as radio
waves. The latter method is popular for use in small
mobile microphones used by performers in plays and
other entertainment events, at public meetings, and by
broadcast personnel.
[1913 Webster PJC]

Any electromechanical device designed to
convert sound into an electrical signal.

A microphone converts an acoustic waveform consisting of
alternating high and low air pressure travelling through the
air into a voltage. To do this it uses some kind of pressure
or movement sensor. The simplest kind of microphone is
actually very similar in construction to a {loudspeaker}.

The analogue electrical signal can be fed into a computer's
{sound card} where it is amplified and {sampled} to convert it
into a {digital} waveform for storage or transmission.

(2002-11-04)


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  • Troubleshoot microphone problems - Microsoft Community
    In Microphone Properties window, switch to Listen tab You will see the explanation of the feature To listen to your mic, check the box, and choose a playback device under the checkbox (default set to Default Playback Device)
  • My Internal microphone on Windows 11 is not working Why is it not . . .
    Select Microphone in the left menu Verify that the Allow apps to access your microphone switch is on Check the sound settings - Set the default device Right-click on the volume icon in the lower-right corner of the taskbar and select Open Volume Mixer Make sure the built-in microphone is set as the default device in the Recording tab
  • MS Teams call (Web) will not detect mic. Microphone not working on . . .
    My microphone works on other sites (e g Google) in the same browser (tried with Chrome and Edge) and I confirmed microphone was granted to teams microsoft com Originally I faced this issue on my laptop which running Win11 24H2 w Dec update, while on my desktop which running 23H2 w Nov update, it works fine
  • Windows Update to 24h2 causing Teams ONLY mic issues?
    Go to Control Panel > Sound > Recording tab > Right-click on your microphone and select Properties > Under the Advanced tab, uncheck Allow applications to take exclusive control of this device Run the Audio Troubleshooter: Go to Settings > System > Sound > Scroll down to Input and select Troubleshoot under your microphone device
  • Microphone on Windows 10 - Microsoft Community
    What are the Sound Controller and Microphone device make model, Driver version and date presently installed in Device Manager What is the make and full model number, HP Serial number or Dell Service tag of the PC or motherboard, from sticker on PC or by checking System Information in Windows 10
  • No microphone detected in Teams app - Microsoft Community
    Ensure "Allow apps to access your microphone" and "Allow desktop apps to access your microphone" are toggled on Find "Microsoft Teams" in the list and turn it on as well Check microphone settings: Ensure that the microphone is not muted or disabled within the Teams app Sometimes, the microphone may be accidentally turned off or muted
  • how to install a microphone - Microsoft Community
    As you have disabled the built-in Microphone, first lets try to set the Microphone as a Default Device and enable the same Perform the task mentioned below to set Microphone as default device and then enable it 1 Go to Start and click on control Panel 2 Click in Sound, then a new window will open up 3
  • How do I set up an external microphone with a 3. 5mm jack?
    I have an external microphone with a 3 5mm jack; it fits many standard aux inputs like headphones This is what the mic looks like: I have only one port in my computer that fits it, the same one that I use for my headphones I plugged in the microphone to that jack, but all of my recordings were still using the computer's built-in microphone
  • Teams needs permission to use this device - Microsoft Community
    I'm using Teams in my company When I join to meeting teams says to me 'Teams needs permission to use this device' and nobody can hear me When I go to privacy settings -> mic, access to microphone is enable next to Microsoft Teams application Reinstall teams help for first meeting
  • Microphone not detected in Windows 11 - Microsoft Community
    After my upgrade from windows 10 to 11 via windows update, my laptop does not detect the inbuilt microphone, although it is visible in the device manager and Sound Control panel settings too Please find the screenshots below and help with the solution, really driving me nutsss





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