History of sound recording - Wikipedia
Listen to World's Oldest Recording
Why do people's voices sound different when they talk? Does it
Musical notation - Wikipedia
Sound recording and reproduction - Wikipedia
Sound effect - Wikipedia
Sound Recording History - Sound Reproduction History
Why does the sound of voices from the 20th century sound different
The Sound of Music (1965) - IMDb
Phonograph record - Wikipedia
Sound card - Wikipedia
What is the history of human-like synthetic voices? When were they
Slick146 reads the Conversion Bureau fics by Chatoyance.
History of sound recording - Wikiwand
Optical sound - Wikipedia