Question

what is the diffrence between a speaker and a microphone as far as input or output concerned ?

Answer 1

Difference between microphone and loudspeaker or speaker

Following are the major difference between microphone and loudspeaker audio devices.

• Microphone converts sound to electrical signal where as loudspeaker converts electrical signal to sound waves.

• Microphone is used at transmitting end where as loudspeaker or speaker is used at receiving end.

• Microphone should be close to mouth where as speaker should be close to ears for better performance.

• Microphone should be close to speaker where as speaker need not to be close from listeners.

• Microphone is smaller in size compare to loudspeakers or speakers.

Answer 2

Answer:

The function of the microphone is to collect sound, and the function of the speaker is to play sound.

1. Turn off the microphone, others will not hear you. If you turn off the speaker, you will not be able to hear others.

2. The microphone converts the collected sound signal into an electric signal, and the speaker converts the electric signal into a sound signal.

3. The microphone signal is weak, about 1mv. The output voltage and frequency change with the external sound pressure. The loudspeaker has a large driving power, and the driving signal is a power signal, which can reach tens of volts at high times, or even hundreds of volts.

A microphone (also known as a microphone or microphone, the official Chinese name is a microphone) is a transducer that converts sound into electrical signals. Microphone classification: According to the principle of acoustic-electric conversion: electric type (moving coil type, aluminum ribbon type), capacitive type (DC polarization type), piezoelectric type (crystal type, ceramic type), electromagnetic type, carbon particle type , Semiconductor type, etc. According to the directivity, it is divided into: cardioid, sharp heart, super cardioid, two-way (8-shaped), non-directional (omnidirectional).

There are many types of speakers. According to their energy conversion principles, they can be divided into electric type (ie moving coil type), electrostatic type (ie capacitive type), electromagnetic type (ie reed type), piezoelectric type (ie crystal type), etc. The latter two are mostly used in rural cable broadcasting networks; the frequency range can be divided into low-frequency speakers, mid-frequency speakers, and high-frequency speakers, and they are often used as combined speakers in speakers.

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