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Wired Lavalier mic

Posted: Sun Sep 20, 2020 5:04 pm
by drepouille
I bought this wired Lavalier mic with a 16-foot cable, because some members thought the Logitech C922 webcam mic captured too much ambient noise.
https://www.amazon.com/gp/product/B07DPQJQ2L

The cable terminates in a male TRRS connector. And it comes with a female-TRRS-to-male-TRS adapter.

Since my Dell Inspiron 5770 has a TRRS combo jack, I assumed I should plug the TRRS cable end into the TRRS jack. Nope! That doesn't work! I have to use the TRRS-to-TRS adapter to connect the TRRS cable end to the TRRS combo jack on my laptop. It works perfectly.

Really?

Re: Wired Lavalier mic

Posted: Sun Sep 20, 2020 6:09 pm
by russellhltn
drepouille wrote:Since my Dell Inspiron 5770 has a TRRS combo jack, I assumed I should plug the TRRS cable end into the TRRS jack. Nope! That doesn't work! I have to use the TRRS-to-TRS adapter to connect the TRRS cable end to the TRRS combo jack on my laptop. It works perfectly.


Since your laptop asks you what you've plugged into it, if you're using a TRRS plug, you have to tell it that it's a "headset". If you tell it it's a microphone, then you'd have to use the TRS adapter. If it's not asking, then it may be making a bad assumption because there's no earbuds on the TRRS and it's mis-identifying the mode.

Re: Wired Lavalier mic

Posted: Mon Sep 21, 2020 5:11 am
by drepouille
Yes, I am probably an idiot. See my comments on the Y-cable headset splitter.

Re: Wired Lavalier mic

Posted: Mon Sep 21, 2020 4:56 pm
by lajackson
drepouille wrote:I am probably an idiot.

Fortunately for the rest of us, there is no real way to validate that statement. [grin]

Re: Wired Lavalier mic

Posted: Tue Sep 22, 2020 3:51 pm
by drepouille
russellhltn wrote:
drepouille wrote:Since my Dell Inspiron 5770 has a TRRS combo jack, I assumed I should plug the TRRS cable end into the TRRS jack. Nope! That doesn't work! I have to use the TRRS-to-TRS adapter to connect the TRRS cable end to the TRRS combo jack on my laptop. It works perfectly.

Since your laptop asks you what you've plugged into it, if you're using a TRRS plug, you have to tell it that it's a "headset". If you tell it it's a microphone, then you'd have to use the TRS adapter. If it's not asking, then it may be making a bad assumption because there's no earbuds on the TRRS and it's mis-identifying the mode.

I've been playing around with the wired mic, the Y-cable headset splitter, and my earbuds. If I plug the wired mic's TRRS directly into the laptop's TRRS port, and choose headset on the pop-up, it works. If I connect the wired mic into the TRRS-to-TRS adapter, and then into the laptop, and choose Mic in, it works. If I connect the wired mic into the TRRS-to-TRS adapter, and then into the headset splitter's mic jack, and connect my earbuds to the headset splitter's headphone jack, and then plug the headset splitter into the laptop's TRRS port, and choose headset with earbuds, it works.

I've been able to confirm that everything works by opening the Windows "Sound" dialog, which has four tabs: Playback, Recording, Sounds, and Communications. I click on the Recording tab, open the microphone properties, click the Listen tab, check the "Listen to this device" checkbox, and set the "Playback through this device" to my earbuds (or something that won't cause too much feedback during the test). This allows me to confirm that the mic input is actually getting through the system to the output.

Re: Wired Lavalier mic

Posted: Sun Sep 27, 2020 4:47 pm
by craiggsmith
Thank you very much!