eli5: Why do old recordings (tv / audio) sound so nasally?

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Watching old movies or broadcasts always sound the same. Everyone has a very muffled and nasal sound to them. What caused microphones to produce such a uniformly weird sound?

In: Technology

11 Answers

Anonymous 0 Comments

The recording technology used at the time such as vacuum tube preamplifiers and tape recorders would introduce analogue warmth. The effect of this are, amongst other things, diminished high frequencies. Engineers at the time would apply boosts to the high frequencies to compensate for the loss.

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