Microphone Stocks List
Symbol | Grade | Name | % Change | |
---|---|---|---|---|
CLRO | C | ClearOne, Inc. | -2.78 | |
SONM | F | Sonim Technologies, Inc. | -0.73 | |
LOGI | D | Logitech International S.A. | 0.39 | |
GPRO | F | GoPro, Inc. | 0.52 | |
ADI | A | Analog Devices, Inc. | 1.60 | |
KN | B | Knowles Corporation | 2.22 | |
TME | A | Tencent Music Entertainment Group | 3.45 |
Related Industries: Communication Equipment Computer Systems Consumer Electronics Internet Content & Information Semiconductors
Symbol | Grade | Name | Weight | |
---|---|---|---|---|
FPAG | A | FPA Global Equity ETF | 5.13 | |
FDRV | D | Fidelity Electric Vehicles and Future Transportation ETF | 5.09 | |
PGJ | B | PowerShares Golden Dragon China Portfolio | 4.85 | |
KWEB | A | KraneShares CSI China Internet ETF | 4.81 | |
PCCE | A | Polen Capital China Growth ETF | 4.58 |
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- Microphone
A microphone, colloquially named mic or mike (), is a device – a transducer – that converts sound into an electrical signal. Microphones are used in many applications such as telephones, hearing aids, public address systems for concert halls and public events, motion picture production, live and recorded audio engineering, sound recording, two-way radios, megaphones, radio and television broadcasting. They are also used in computers for recording voice, speech recognition, VoIP, and for non-acoustic purposes such as ultrasonic sensors or knock sensors.
Several types of microphone are used today, which employ different methods to convert the air pressure variations of a sound wave to an electrical signal. The most common are the dynamic microphone, which uses a coil of wire suspended in a magnetic field; the condenser microphone, which uses the vibrating diaphragm as a capacitor plate; and the contact microphone, which uses a crystal of piezoelectric material. Microphones typically need to be connected to a preamplifier before the signal can be recorded or reproduced.
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