Automatic Speech Recognition

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Automatic Speech Recognition (ASR) is one of the major activities that the centre is carrying out for the last six years. Speech recognition related prototypes (like Bangla digit recognizer, travel enquiry system, automatic phone dialing etc.) have been developed as proof of concepts. C-DAC, Kolkata is now one of the active members of DeitY (Department of Electronics and Information Technology) - ASR consortium. An IVR based real time isolated word speech recognizer on agricultural information domain has been developed as a part of the Phase I project under this consortium.

(under DeitY-ASR Consortium Phase I)


To implement and deploy a speech access based system for users to get prices of agricultural commodities over telephone/mobile. Such systems would provide excellent value-addition to the already existing website managed by the Ministry of Agriculture, since no computer, reading or writing skills are required for the proposed system. The languages covered are Bangla, Assamese, Marathi, Tamil, and Telugu. C-DAC Kolkata is responsible for the system development in Bangla Language.

System Features:


System Requirements:

Hardwares: Softwares:
ISDN-PRI / E1 Channel Linux Operating System
PRI Modem (ASMi-52) Asterisk Gateway Interface (AGI)
Asterisk Server High-Level Scripting
Sangoma A101 CTI Card External resources: MySQL, http,

Likely end user(s):

Try Demonstration: Dial (033)-2357-9009

(Press 1 for Bangla prompt or 2 for English prompt. Then press 02 for getting commodity price)

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