A measure of the clarity and/or cleanliness of an audio signal. There can be both objective and subjective measures. It can refer to any point in the audio chain, from source, through recording and production, to the subjective human ear.

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Producing Video Lectures similar to Coursera/EDX

I would like to record video lectures using a light board scenario which is a transparent board on which one can draw as if one is drawing on the screen/camera itself. For those of you interested, ...