G711 calls only have about 3.4kHz to work with, so you’re kinda SOL to try this. -- Brian West brian@freeswitch.org FreeSWITCH Solutions, LLC PO BOX 2531 Brookfield, WI 53008-2531 Twitter: @FreeSWITCH , @briankwest http://www.freeswitchbook.com http://www.freeswitchcookbook.com T: +1.918.420.9001 | F: +1.918.420.9002 | M: +1.918.424.WEST iNUM: +883 5100 1420 9001 ISN: 410*543 Skype:briankwest PGP Key: http://www.bkw.org/key.txt (AB93356707C76CED) On Mar 17, 2014, at 7:55 PM, Muhammad Shahzad <shaheryarkh@gmail.com> wrote:
nah, i just want to skip the music, not the human voice even if s/he is singing. I am not an expert in this area but i think usually male's voice is around between 300 - 3000 Hz and females have a little higher frequency, while most of musical instruments are over 5000 Hz. So, if we can see audio is less then say 5000 Hz then record else, skip. Just a rough idea, i am sure professionals like you can devise something better or improve this.
Thank you.