<!DOCTYPE html> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> </head> <body> <p>"The output audio is not sent to the speakers, but from the headphones, and the mic cannot pick up the played audio from the air" - actually, it can. I recently tested a USB audio interface with connected to it XLR microphone, and I was wearing circumaural headphones. With high enough gain I managed to obtain oscillations because of the acoustic feedback.</p> --Sergei. <p></p> <div class="moz-cite-prefix">On 5/23/24 05:39, 赵成义 wrote:<br> </div> <blockquote type="cite" cite="mid:tencent_04DE945A4B5C9F1767FF24B4@qq.com"> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <div>Hi guys,</div> <div><br> </div> <div><includetail> <div style=""> <div style="color: rgb(0, 0, 0); position: relative;">>> I mean I don't need to record played audio, but it is recored into the mic.</div> <div style="color: rgb(0, 0, 0); position: relative;">>> I can confirm that ALSA loopback is set to false state, and the sink monitor<br> >> is not used.<br> > You probably need echo cancellation<br> <br> </div> <div style="position: relative;"> <div style="position: relative;">The output audio is not sent to the speakers, but from the headphones, </div> <div style="position: relative;">and the mic cannot pick up the played audio from the air, </div> <div style="position: relative;">so I don't think it's an echo issue.</div> <div style="position: relative;"><br> </div> <div style="position: relative;">I am using a four-section headset, and the input and output are on the same audio port. </div> <div style="position: relative;">Is it possible that there is signal interference in the input and output?</div> <div style="position: relative;"><br> </div> <div style="position: relative;">Thanks,</div> <div style="position: relative;"><br> </div> <div style="position: relative;">Chengyi</div> </div> </div> </includetail></div> </blockquote> </body> </html>