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It is used instead of a push-to-talk button on transmitters or to save storage space on recording devices. On cell phones , it is used to save battery life. Intercom systems that use a speaker in a room as both a speaker and a microphone will often use VOX on the main console to switch the audio direction during a conversation.
It is the successor of the Zoom H2 recorder. The Zoom H2n has four microphone capsules (including one bidirectional) built inside it. Musical applications for the H2n include the ability to use the device as a stereo or multi-track (four-channel) recorder; the device also includes built-in editor for some minor editing works within the device ...
However, this recorder was later adapted for recording speech and was used in 1921 to record speeches by President Calvin Coolidge and others which were broadcast over Station WGY (Schenectady). This recorder was called the Pallophotophone. In 1925, GE began a program to develop commercial sound-on-film equipment based on Hoxie's work.
Sound recording and reproduction is the electrical, mechanical, electronic, or digital inscription and re-creation of sound waves, such as spoken voice, singing, instrumental music, or sound effects. The two main classes of sound recording technology are analog recording and digital recording .
A voice command device is a device controlled with a voice user interface. Voice user interfaces have been added to automobiles , home automation systems, computer operating systems , home appliances like washing machines and microwave ovens , and television remote controls .
The Clapper is a sound-activated electrical switch, [1] sold since 1984 by San Francisco, California based Joseph Enterprises, Inc. Joseph Pedott marketed the clapper with the slogan "Clap On! Clap Off! The Clapper!". [2] The Clapper plugs into a U.S.-type electrical outlet, and allows control of up to two devices plugged into the Clapper. [3]