The difference between Volume and Gain, and ”loudness” overall (Audio Engineering)

Question

The difference between Volume and Gain, and ”loudness” overall (Audio Engineering)

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Answer 1

* Gain is a technical term that describes the change between the input level and the output level of some signal.
* Volume is just a word printed on consumer audio equipment and TV remotes.
* Functionally they mean the same thing.
* In the world of audio engineering, almost no one uses the term volume, instead we use “gain” and “level” but again, they mean the same thing.
* There are many places in a typical audio chain to apply “gain” and so by convention we’ve started using “gain” when adjusting the pre-amp circuit, and level in most other places.