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ASR class

Lecturer's website with help

1. lecture

2. lecture

We looked at phonemes and international phonetic alphabet with sounds at wiki.
  • Be aware on the notion ("c" is not "c" like in Czech or English etc...)
  • Interesting for Czech language are Affricates
  • in Czech we incorrectly put together voiced and voiceless pair "ch" and "h"
Czech <-> English terminology
  • znělé <-> voiced
  • neznělé <-> voiceless
How do I read spectogram

3. lecture

We touched Viterbi algorithm. For backward forward algorithm we stressed that crucial function is $ L_{i,t} $ which gives you probability that you are at time $t$ in state $i$, than you can choose the most probable state.