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Questions tagged [trrs]

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Sensing plugged in 3.5mm jack with the TRRS contacts

I am using the pictured TRRS connector and want to detect whether a plug is plugged in via the builtin switches (pins 2/3/4). However, the switches seem to be connected to the audio lines as well. ...
Liftyee's user avatar
1 vote
1 answer
240 views

TRRS headphone and mic swapper

I'd like to create a serial cable link library between two devices called Playdates. They have a TRRS audio jack, and my idea is to use a few cables as shown below to connect each Playdate's audio out ...
dwb's user avatar
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1 vote
1 answer
126 views

USB audio (TRRS) to transformer for impedance matching

I'm kind of stuck, and not really sure where to look, or what to look up. I need to take the output of a USB audio fongle that has a single 3.5mm jack (TRRS), into a break out cable, and then need to ...
blckmorning's user avatar
1 vote
1 answer
274 views

Are all adapters for TRRS to TRS the same? [closed]

I want to connect an audio device (specifically, a phone) with a TRRS output port to a second device with a TRS microphone input (an audio recorder). I tried one such adapter but it does not work. I ...
Mike Portyu's user avatar
0 votes
1 answer
177 views

Wiring an Android headset with push-to-talk functionality with active electronics to a standard TRRS connector

I'm using an app on an Android phone that creates the possibility to use the phone as radio with PTT. I'm now trying to build headset with PTT that could interface with the phone's 3.5 mm connector. I ...
TonninSeteli's user avatar
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0 answers
40 views

Connecting an electret headset with laptop

I am looking into buying a SmartBoom PRO Dual-Ear Electret Headset Unterminated to connect to my laptop. I work in a very noisy environment and no other microphone seems to work. The following is the ...
QLands's user avatar
  • 101
2 votes
2 answers
350 views

Analog Android headphone command circuit not working together with microphone

I'm trying to make a headset with microphone (and stereo audio) for an Android phone. The headset will be connected to a 3.5 mm TRRS jack. I have read the specifications for such devices from Android ...
TonninSeteli's user avatar
0 votes
1 answer
200 views

A male-to-male cable for the MJ-4PP-9

I'm building an Ergodash which requires a MJ-4PP-9 socket and a matching TRRS cable. I believe I've got the right female with the following dimensions. However, all the male-to-male cables I've got ...
ChocolateOverflow's user avatar
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0 answers
197 views

Connection of TRRS microphone not TRRS headset

I know for headset T- Left R- Right R- mic S- Ground But for only microphone T - unknown ? R - unknown ? R - mic S - Ground What are those unknown? I want to plug it to my computer which has separate ...
Niranjan Wagh's user avatar
2 votes
1 answer
746 views

How can I make a L+R+mic audio dongle to record an Android phone's own output?

I'm looking for a way to wire the stereo output of a device into its own mono microphone input. This will be soldered as a 4 pin 3.5mm TRRS audio jack. I need to record the output of my smartphone on ...
Krzysztof Bociurko's user avatar
2 votes
1 answer
2k views

Connecting cell phone and computer audio through TRS and TRRS 3.5 mm audio jacks

I am trying to connect the computer audio output to the cell phone audio input and vice versa. There are two connection designs because I need to be able to connect both to a desktop and a laptop ...
J Physics FM's user avatar
0 votes
1 answer
5k views

Creating a custom TRRS splitter for headphones and mic; how to handle the mic's TRS jack?

I want to create a TRRS splitter / joiner that can be used to combine two 3.5mm jacks, one for headphones and one for a microphone, into a single 3.5mm TRRS male jack. It'll use the CTIA standard so ...
Bri Bri's user avatar
  • 103
0 votes
1 answer
353 views

How to safely use TRRS socket in order to transfer signal

In order to build a split keyboard I want to connect the two pieces with a four wire cable. Among the keyboard enthusiasts forums I have seen often the use of a trrs cable which is used as V,Gnd,TX,RX ...
user3060854's user avatar
0 votes
1 answer
321 views

Designing a circuit for TRRS Socket

I'm building an electronic musical instrument which I would like it to have a 3.5mm audio output socket, so it would work with any "regular" headphones, like a cellphone does. For a long time, I've ...
Taru's user avatar
  • 103
0 votes
1 answer
359 views

TRRS connector schematic

Can somebody explain the following schematic and how can I use this connector with a TRRS cable: I can see pins 2 and 6 are connected but I don't understand why there are still 4 pins left instead of ...
isar's user avatar
  • 485
2 votes
1 answer
213 views

What is this contact on a jack socket schematic?

I'm looking for a 4-poles (TRRS) 3.5mm jack socket with integrated switch, and stumbled upon this connector schematic: (this is an extract from the CLIFF FC68129 datasheet) I understand that pins 1, ...
strnk's user avatar
  • 157
2 votes
0 answers
256 views

Why is 3.5 mm audio jack so long (about 19 mm)? [closed]

The designers of 3.5 mm audio jack made the decision to keep it's length long (about 19 mm). They could have easily gone shorter lengths. Does longer length provide some noticeable improvements? From ...
Ashish Ranjan's user avatar
2 votes
0 answers
103 views

Is there any standard (or even a de-facto standard) for TRRS to USB? [duplicate]

I've had a few MP3 players that used a single 3.5mm TRRS jack for both connection to earphones and for connection to a USB port (for transferring music files and re-charging the player.) To that end, ...
Randy's user avatar
  • 3,255