mehdignu / levenshtein-distance

compare speed and accuracy of two speech recognitions APIs using levenshtein-distance algorithm

levenshtein-distance-js

APIs used form the testing:

• Microsoft Cognitive Speech

  • benefits: clear documentation, 30 days free trial
  • shortcomings: -
  • potential risks: -

• Speechmatics

  • benefits: clear documentation
  • shortcomings: the API is limited with specific amount of credit
  • potential risks: -

Measure of accuracy algorithm

• levenshtein-distance

How to install / use the tool

Global configuration

• install the necessary dependencies using:

  $ npm install
  

• in ./config/settings.js change add the complete file path and the .xls transcription file

Microsoft Cognitive Speech configuration

• create an account for Microsoft Cognitive and copy your subscription key

• add your subscription key to ./config/settings.js

• specify the transcription language

Speechmatics configuration

• create an account for Speechmatics and add the user id and the authentication key to ./config/settings.js

• change the callbackurl to your server domain to get notification when the processing of the file finishes.

• specify the transcription language

• add the listening port

Results

• Microsoft Cognitive Speech is more accurate and faster than Speechmatics API.