[Issue] USB C to Audio Output - OnePlus 7 Pro Accessories

I grabbed a two pack of some dongles to convert Type C to audio, they work for standard iPhone headphones, but not if I plug in an aux cord . The phone recognizes it as headphones attached but no sound every comes out.
Any idea how to fix/have you guys used any brands successfully with aux cords?

Same problem for me.
Any helps?
Thanks

Does the dongle have a built in dac? If not try unplugging the dongle, go to settings, enable otg storage, then plug in the dongle. I need to do that for my dongle

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Audio Output from Micro USB?

anyone know if the s2 hardware is possible of audio output from the micro usb side? what i want is to be able to plug it in from the usb charge port from the phone to connect to my car aux and have it charging/playing music at the same time.
chvietnk said:
anyone know if the s2 hardware is possible of audio output from the micro usb side? what i want is to be able to plug it in from the usb charge port from the phone to connect to my car aux and have it charging/playing music at the same time.
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Yes, The microUSB port at the bottom is used for both data connections and charging. Not only does it support USB host but it also comes with MHL enabling HDTV-out connectivity with the proper adapter.
MHL is a way of using both microUSB and HDMI through the same port. The downside is you need an adapter to use a regular HDMI cable with this one.
Born_Immaculate88 said:
Yes, The microUSB port at the bottom is used for both data connections and charging. Not only does it support USB host but it also comes with MHL enabling HDTV-out connectivity with the proper adapter.
MHL is a way of using both microUSB and HDMI through the same port. The downside is you need an adapter to use a regular HDMI cable with this one.
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does it boot it as storage or will i be able to stream music off the phone? ill be connecting it to my car stereo with micro usb to aux(not usb port)
chvietnk said:
does it boot it as storage or will i be able to stream music off the phone? ill be connecting it to my car stereo with micro usb to aux(not usb port)
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I've tried it several times in my car with my radio that has a usb and aux port. It will not play without the special dock attachment in the usb port but I have no way of knowing if a usb to aux cable would work because I do not have one to try.
I will be constructing and selling around 10 of these cables (Micro USB to audio out+charging). Please email me or PM me on [email protected] if interested.
mrushabh said:
I will be constructing and selling around 10 of these cables (Micro USB to audio out+charging). Please email me or PM me on [email protected] if interested.
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I made one following the instructions on one of the threads, and although it is detected as a docking cable and the system claims to route the audio through it (the steering wheel logo appears in the status bar and I get a message "car audio dock detected"), it still plays through the internal speaker. I'm having the problem with Cyanogenmod 9 and now 10. I never tried with the stock ROM, I'm assuming it works...

[Q] Will a 3.5MM Stereo Headset Audio Adapter work?

Hi, I was wondering if anyone has an experience to make a Samsung micro-USB to 3.5mm audio jack adapter to work? Something got into my audio jack socket causing contact issues. I don't have USB headphone, or external audio devices connected by OTG cable -- just plain headphone (or car audio's aux-in) connected to Note 2's usb port using the adapter ... will it work? Do I need an app to drive that?
kousik said:
Hi, I was wondering if anyone has an experience to make a Samsung micro-USB to 3.5mm audio jack adapter to work? Something got into my audio jack socket causing contact issues. I don't have USB headphone, or external audio devices connected by OTG cable -- just plain headphone (or car audio's aux-in) connected to Note 2's usb port using the adapter ... will it work? Do I need an app to drive that?
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this should work
eventually you can buy bluetooth headphones or adapter
yaro666 said:
this should work
eventually you can buy bluetooth headphones or adapter
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Thanks -- unfortunately it didn't, but maybe because my USB-3.5mm adapter is too old (from another long dead Samsung phone). I even tried the SoundAbout app (free version) but still no joy. Maybe bluetooth is the solution to my problem but it's one more battery to charge.

Type-c earphones with no audio

Hi, I picked up a pair of type-c earphones from AliExpress for my Mi A1 which is running Pie with the March update. However, my phone doesn't detect them and no audio is sent to them either. Any ideas?
Not all TypeC speaker/earphone devices are the same. I also tried that with a friend's TypeC earphones and it didnt work. I attached a USB DAC Dragonfly Red via an OTG adapter (Type C Malr to Type A Female) and I got audio out from it.
It seems you'll need a type C headphones that has a built in USB DAC or use a USB DAC in-between like I did.
Some type C earphone are just wired to take advantage of the additional wires in USB3 TypeC and so the phones output the analog audoo through these additional lines. This also makes them incompatible with other brands too. Meanwhile, the A1 has a USB2 TypeC and so also only has the 4-5 lines of microUSB B.
Bottomline: use the 3.5mm audio out of the phone or use a USB DAC to output audio thru USB TypeC.

Question Car aux cable recognizes as a USB on phone

Hey so I've got a problem where I wanna connect my aux cable via a dongle to my phone, and all I get is a message ''Unsupported USB device''. I tried the USB sourcing thing in the dev options but no luck still. It worked on a Xiaomi with a dongle with no issues, could it be that I have to have the actual Samsung dongle?
Hmm, i also use a aux cable via dongle in my car, and it works without any problems.
It is not a Samsung dongle though.
Looks like the DAC which is in the dongle needs to be recognized by the phone as an audio device...
While Xiaomi phones support dongles without a DAC, Samsung phones only support ones with a DAC inside.
So, the phone needs a dongle with a DAC to output to your car,
The dongle Xiaomi includes with their phones does not have a DAC inside of it.
Makes sense. Xiaomy obviously stil has DAC inside the phone, meanwhile samsung doesn't which means that you need it inside the dongle.

No audio via USB-C

Hello,
I'm running LineageOS 20 (lineage-20.0-20230611-nightly-FP4-signed) on my Fairphone 4, and I have no idea why I can't get any audio via USB-C.
Could someone help me figure out which settings I need to tweak to fix this issue?
I've tested 5 different USB-C solutions and none have worked:
USB-C to USB-C + 3.5mm splitter
USB-C charges fine, audio plays on device instead of via 3.5mm
Generic USB-C to HDMI adapter
Video plays fine, audio plays on device instead of TV or PC monitor speakers
Anker USB-C to HDMI adapter
Video plays fine, audio plays on device instead of TV or PC monitor speakers
USB-C to DisplayPort cable
Video plays fine, audio plays on device instead of PC monitor speakers
PC monitor with USB-C connection
Video plays fine, audio plays on device instead of PC monitor speakers
All of these cables and adapters work fine on my other devices, 3 of them are used daily, except the Generic USB-C to HDMI adapter which my laptop doesn't seem to like (but it works on the Fairphone!).
Thank you for your time.

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