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2. Multi-room audio - Wikipedia

   en.wikipedia.org/wiki/Multi-room_audio

   This kind of system could be assembled from separate components (e.g. a splitter-router-matrix mixer, a processor, amplifiers and control panels), though knowledge of professional audio equipment and automation systems would be required. More commonly, commercial systems are employed to accomplish these tasks.

3. Home audio - Wikipedia

   en.wikipedia.org/wiki/Home_audio

   Receivers often have built-in support for streaming services and multi-room audio. AV receiver: Also known as a home theater receiver, connects to a TV and decodes multiple audio channels to power a multi-speaker surround sound system. Preamplifier: It takes the weak audio signal from the source component and sends a stronger signal to the ...

4. Sound reinforcement system - Wikipedia

   en.wikipedia.org/wiki/Sound_reinforcement_system

   A challenge with designing sound systems for clubs is that the sound system may need to be used for both prerecorded music played by DJs and live music. A club system designed for DJs needs a DJ mixer and space for record players. In contrast, a live music club needs a mixing board designed for live sound, an onstage monitor system, and a ...

5. Plasma speaker - Wikipedia

   en.wikipedia.org/wiki/Plasma_speaker

   The ExcelPhysics variant used a flyback transformer to step up voltage, a 555 timing chip to provide modulation and a 44 kHz carrier signal, and an audio amplifier. The kit is no longer marketed. [10] A flame speaker uses a modulated flame for the driver and could be considered related to the plasma loudspeaker.

6. Loudspeaker - Wikipedia

   en.wikipedia.org/wiki/Loudspeaker

   The human brain is sensitive to small variations in reflected sound, and this is part of the reason why a loudspeaker system sounds different at different listening positions or in different rooms. A significant factor in the sound of a loudspeaker system is the amount of absorption and diffusion present in the environment. Clapping one's hands ...

7. Room acoustics - Wikipedia

   en.wikipedia.org/wiki/Room_acoustics

   Room acoustics is a subfield of acoustics dealing with the behaviour of sound in enclosed or partially-enclosed spaces. The architectural details of a room influences the behaviour of sound waves within it, with the effects varying by frequency .

8. Sound amplification by stimulated emission of radiation

   en.wikipedia.org/wiki/Sound_amplification_by...

   SASER's central idea is based on sound waves. The set-up needed for the implementation of sound amplification by stimulated emission of radiation is similar to an oscillator. An oscillator can produce oscillations without any external feed-mechanism. An example is a common sound amplification system with a microphone, amplifier and speaker.

9. Public address system - Wikipedia

   en.wikipedia.org/wiki/Public_address_system

   A public address system (or PA system) is an electronic system comprising microphones, amplifiers, loudspeakers, and related equipment. It increases the apparent volume (loudness) of a human voice, musical instrument, or other acoustic sound source or recorded sound or music.