We would like to sponsor someone to contribute a small bit of C-programming to the Freeswitch open-source telephony project. Specifically, we need help to update beep-detection algorithm used in mod_avmd module. Mod_avmd attempts to identify a beep of unknown frequency at the end of a voicemail message. The stream being analyzed is an SIP G.711 with an 8K sample rate and encoded as mu-law. We are looking to improve the accuracy of the beep detection while ensuring that the algorithm is CPU-efficient. The Freeswitch integration has already been done in the mod_avmd. It only requires an algorithmic makeover. You can view the existing algorithm and implementation at: https://freeswitch.org/fisheye/browse/freeswitch/src/mod/applications/mod_avmd/mod_avmd.c?hb=true If you're interested in helping, please contact us at the email below with a quote and a brief description of how you would solve the problem. mstate /at/ modusresearch.com (I've obfuscated the email a bit. Hope it's still clear.) --------------------------------------- Posted through http://www.DSPRelated.com
Need help improve the Freeswitch open-source telephony switch.
Started by ●November 5, 2015