Training an acoustic model for a speech-to-text engine What are the steps for training an acoustic model? The format of the data (the audio) includes its length and other characteristics. If anyone could provide a simple example of how to train an acoustic model, it would be greatly appreciated.
This paper has details on how to prepare Audio data (and merge it with Language Models) for speech-to-text :



http://slazebni.cs.illinois.edu/spring17/lec26_audio.pdf

Slide 16 has very high level description of feature engineering. 



Following papers provide more detailed analysis of audio processing for speech to text :

http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.701.6802&amp;rep=rep1&amp;type=pdf
http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.689.4627&amp;rep=rep1&amp;type=pdf
https://www.ijariit.com/manuscripts/v4i3/V4I3-1646.pdf