Sound is a vibration.
Audio is when we record digitally. The vibration of sound is audio and waveform.
Waveform of a signal is the shape of its graph as a function of time, independent of its time and magnitude scales and of any displacement in time.
Pre-Role is the recording of the shots 2 to 3 times before the actual shot is taken.
Post-Role is a recording of 10 to 15 seconds in length. This is in contrast to video ads that play before a video (Pre-Role).
Echo and Reverb
ECHO is the delay in the sound
REVERB occurs when a sound hits any hard surface and reflects back to the listener at varying times and amplitudes to create a complex echo, which carries information about that physical space.
Mono and Sterio
Mono is the single channel audio
Stereo is the two channel audio
True Stereo is the stereo signal consists of two related channels, with correlated material in the left and right outputs.
Pseudo Stereo is when you record Mono and duplicate it later through editing
Types of Sound Systems
- 2.1 Sound System
- 5.1 Sound System
- 7.1 Sound System
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