topic Producing hum in a microphone. LPC in LPC Microcontrollers https://community.nxp.com/t5/LPC-Microcontrollers/Producing-hum-in-a-microphone-LPC/m-p/727025#M29389 <HTML><HEAD></HEAD><BODY><P><SPAN style="color: #222222; background-color: #ffffff;">Hello ,</SPAN><BR data-jive-statusinputadd="true" data-jive-truncation-flag="true" style="color: #222222;" /><SPAN style="color: #222222; background-color: #ffffff;">Could any one&nbsp; help me in designing a ckt.</SPAN><BR data-jive-statusinputadd="true" data-jive-truncation-flag="true" style="color: #222222;" /><SPAN style="color: #222222; background-color: #ffffff;">Actually i wanted to design a ckt which would block human voice from entering the microphone or in short cause a hum on the speaker from a distance of say 100 feet.</SPAN><BR data-jive-statusinputadd="true" data-jive-truncation-flag="true" style="color: #222222;" /><SPAN style="color: #222222; background-color: #ffffff;">I want to send some noise wirelessly so it would produce hum in the microphone.</SPAN><BR data-jive-statusinputadd="true" data-jive-truncation-flag="true" style="color: #222222;" /><SPAN style="color: #222222; background-color: #ffffff;">Any help would be appreciated.</SPAN></P></BODY></HTML> Sat, 05 May 2018 08:08:20 GMT zaidshaikh 2018-05-05T08:08:20Z Producing hum in a microphone. LPC https://community.nxp.com/t5/LPC-Microcontrollers/Producing-hum-in-a-microphone-LPC/m-p/727025#M29389 <HTML><HEAD></HEAD><BODY><P><SPAN style="color: #222222; background-color: #ffffff;">Hello ,</SPAN><BR data-jive-statusinputadd="true" data-jive-truncation-flag="true" style="color: #222222;" /><SPAN style="color: #222222; background-color: #ffffff;">Could any one&nbsp; help me in designing a ckt.</SPAN><BR data-jive-statusinputadd="true" data-jive-truncation-flag="true" style="color: #222222;" /><SPAN style="color: #222222; background-color: #ffffff;">Actually i wanted to design a ckt which would block human voice from entering the microphone or in short cause a hum on the speaker from a distance of say 100 feet.</SPAN><BR data-jive-statusinputadd="true" data-jive-truncation-flag="true" style="color: #222222;" /><SPAN style="color: #222222; background-color: #ffffff;">I want to send some noise wirelessly so it would produce hum in the microphone.</SPAN><BR data-jive-statusinputadd="true" data-jive-truncation-flag="true" style="color: #222222;" /><SPAN style="color: #222222; background-color: #ffffff;">Any help would be appreciated.</SPAN></P></BODY></HTML> Sat, 05 May 2018 08:08:20 GMT https://community.nxp.com/t5/LPC-Microcontrollers/Producing-hum-in-a-microphone-LPC/m-p/727025#M29389 zaidshaikh 2018-05-05T08:08:20Z