2. Digitizing audio makes it possible to multiplex
or encrypt it, but directly representing the
waveform requires a lot of data
3. The Fourier transform
decomposes complex
periodic waveforms into
a sum of sine waves,
which can be expressed
compactly as a list of
magnitudes and phases
5. The vocoder uses Fourier transforms to break
the voice into frequency bands and analyze the
amount of sound energy in each band, along
with the noise content
6. The vocoder plays sound back by generating a
harmonic-rich tone (the carrier) and filtering
it according to the frequency content of the
voice (the modulator)
17. Uniform pitch standards are a new
phenomenon - equal temperament did not
become the European standard until the 19th
century, and even then, concert tuning
pitches varied by region
26. “I’m not a perfect note hitter either but I’m not going to
cover it up with Auto-Tune. Everybody uses it, too. I once
asked a studio guy in Toronto, “How many people don’t use
Auto-Tune?” and he said, “You and Nelly Furtado are the
only two people who’ve never used it in here.” Even though
I’m not into Nelly Furtado, it kind of made me respect her.
It’s cool that she has some integrity.” - Neko Case