Vocalist eurorack speech synthesizer

Modes:

• play phrase plays entire phrase while gate is high. Pitch and other variables are set at the start and held constant.
• play word when trigger happens, the next word in the patch is played. pitch and CC's are determined per at start of word. Reset button or trigger makes the next word the first word of phrase.
• play syllable Play one syllable per trigger
• scan phonemes While gate is high, we scan phonemes. Pitch is determined constantly, and phoneme position in patch is chosen by (other CV input?)

Word banks:

• N banks of Y words in alphabetical order
• show words on 4-char red LED screen

CV control of bank and word, or at least word one or more banks are "user" bank could be next/prev buttons pick word, "append" appends it to current patch hold append 2sec to drop last word need a way to save it into user patch ^ this currently has an issue with mental model - are we playing the selected word, or the patch?

"Stutter" - likelyhood we repeat a phoneme "Chaos" - (carefully) fuck with internal buffers

other settings:

• trig VS gate

Hardware: 4-digit hex LED - maybe 3 digits is enough maybe LTP-587HR driven by shift register + address line picker

CODEPATH

Right now sam.cc: SAMMain()

• initializes
• parses and converts phonemes
• calls PrepareOutput

PrepareOutput()

• loads phonemes into the render input buffer
• renders out a word at a time, reusing that input buffer

Render()

• creates frames
• transitions frames
• calls ProcessFrames to actually dump data

What we want, I think:

• initialize
• parse and convert phonemes ...
• LoadNextWord() RenderWord()

ok time to split it in two:

• interpreter, takes english and converts to phonemes
• list of phoneme fragments that will be in flash, not in RAM
• renderer, takes a "patch" which is a list of indexes to phoneme fragments, and all the synth settings, and outputs sounds