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Embedded audio refers to a technique of inserting audio data into a video signal. It is commonly used in broadcast environments and makes for a very convenient connection. One cable carries video, audio, closed caption data and more. It means that data cannot get lost on the way and it is harder for a station engineer to patch the wrong audio to a channel by mistake. HD signals have sufficient spare capacity to carry up to 8 audio channels.
There are times when this auxiliary data needs to be stripped from the video signal and routed separately. Here are a few reasons why:
Standards conversion:
When changing a signal from a 60Hz US version to a 50H European version, the audio data that was attached to each frame of the image will be lost. The frames are actually re-generated at a new frame rate so the audio needs to be inserted once again to fit the new frame rate. The same applies to 50Hz to 60Hz conversion.
Vision mixing.
In live production, video signals normally pass through at least one switcher or vision mixer. Because a typical switcher can have up to 96 separate video inputs, audio embedded in one signal may not be required at the output. All audio is normally extracted, processed and re-inserted after the video processing has been done.
File processing
Embedded audio is also found in video files. Once again, a single file can carry all the data required but any process carried out on either the video or audio components will require the two signals to be separated.
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Audio input is bringing sound signals into a device from another device, typically using a plug or jack.
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Using an amplifier. This can be as simple as a single BJT and a few resistors or a enormous audio amp the likes of which you see in cars with ridiculously loud noises coming out of them.
What is imbeded content?
embedded content refers to content on a web page that runs directly from the page in the web browser by using audio or video plugins. When you go to youtube, the content is 'embedded' because it plays in your browser; ie, you don't have to open another application on your computer to display/listen to/run it.
What is stechnography?
Stechography is the process of sending a data in hidden format.i.e data is transfered unknowingly between two partys.This hidden transform of information is done by using images,audio files,video file. The data that is need to transfer is embedded in an Image,Audio or Video which is then relaesed in to public.
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A microphone is an input or output device?
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How are analog signals received?
Analog signals can be received using an analog receiver.
How are analog signals transmitted-?
Analog signals are transmitted as electrical waves.
Is the word audio a noun or a verb?
Audio is a noun when relating to sound or hearing. Audio is also an adjective when referring to electronic apparatus using audio frequencies
