I am totally new to sound. I have been using USB MIC and Boya (with USB adaptor). I record my voice while screen recording. I should had gone with Audio Interface but I got this mixer without XLR MIC. I don't have XLR mic. I have Boya BY-M1 mic. I got two adapters (TRS connectors). I plugged in simple headphone audio and Boya mic pins in mixer and used phones. I could hear audio/sound from laptop but I could not listen to my voice from MIC. I turned 'Gain' and 'Level' in first column and turned phones knob. I can listen to my voice but really low but a ready loud hiss and background noise. I tried "To Phones" and "To main mix" together and separate but no success. Also when I check "Listen to this device" from mic settings only them i hear my voice. I wanted to record my voice and monitor it at same time. I am using screen capturing software or sometimes audacity. Did I make mistake by going with mixir? Should I had gone with audio mixer like Focusrite? Mixer with Boya and adaptors

audacity - too much noise and hiss

Am I doing it wrong? Is XLR microphone a must to get clean voice?

1 Answer 1


You have an impedance mis-match.

Your mic is designed for consumer-level laptops, cameras, phones etc which all expect (cheap) high impedance microphones. Boya states the BY-M1 is '1000Ω or less', which is borderline mid-high impedance.
Presumably your previous USB adaptor was also designed for consumer-level headset mics.

Your new mixer is expecting a (professional) low impedance mic. Typically 100Ω or so.

There's a really good explanation of why this mismatch means a rough ride for your audio here - Microphone Impedance: What Is It And Why Is It Important?

You can use a DI (Direct Injector) Box to overcome this mismatch - however, even a half-decent DI box will cost more than your existing mic.
Practically, you would be better off getting a real low impedance mic.

  • Alright. Thanks. So if I get a 3.5 female to xlr male connector and use that to connect boya will it work? or I just saw there are xlr lavalier microphone (requires phantom power) available. But my mixer has 15v phantom power but xlr mics require 48v phantom power. Commented Feb 1, 2021 at 16:11
  • Just changing the connector will not change the impedance - you need something like this bhphotovideo.com/c/product/68656-REG/… The Behringer manual is horribly unclear as to what its phantom power output is, & there are many online discussions about it. Phantom is supposed to be 48v, the manual says 'switchable' +48v/+15v then never mentions how you'd switch it; which is… ermm… (swearing redacted).
    – Tetsujin
    Commented Feb 1, 2021 at 16:56

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.