USB-C to 3.5mm adaptor

chrisrj28

Senior Member
Apr 26, 2008
3,297
692
0
Sacramento, CA
Hello all, I was wondering if anyone knew where to get the OnePlus adaptor from other than their website. They are out of stock and I see what looks to be cheap knockoffs online.

Thanks
 

Bradl79

Senior Member
May 25, 2008
3,354
4,582
263
J'Ville
Does the Google one have an included DAC like the OnePlus version?
Being a google product I am sure it does or if not better. I tested it and it sounded great in my car, I have an aftermarket system with Amps and a DSP and it sounded better than my OnePlus 6 and I am using VIPER4Android with it too. Well worth it.
 

chrisrj28

Senior Member
Apr 26, 2008
3,297
692
0
Sacramento, CA
Being a google product I am sure it does or if not better. I tested it and it sounded great in my car, I have an aftermarket system with Amps and a DSP and it sounded better than my OnePlus 6 and I am using VIPER4Android with it too. Well worth it.
Great thanks for the info, I'll probably just swing by and pick that up. Waiting on OnePlus to restock will probably be a while.
 

Elnrik

Senior Member
Nov 16, 2013
1,047
676
0
Denver
www.superbestaudiofriends.org
I'm a bit curious about the situation with the USB-C to 3.5mm. Do I need an adaptor with or without an DAC inside the adaptor, and what if there is an DAC inside or not?
There is no DAC inside the phone to output analog audio through the usb-c port. Any adapter you get will need to have one inside like the Google dongle does. If you are curious, check this out.

I personally don't think those little things sound that great and they can't drive sensitive IEMs or power hungry headphones very well from my experience, which is why I suggest products like the FIIO μBTR, BTR1 or 3, or Astell & Kern XB10, EarStudio ES100, so on and so forth. Of course the added expense is only worth it if you're driving good earphones, otherwise the Google dongle is just fine.
 
Last edited:

chrisrj28

Senior Member
Apr 26, 2008
3,297
692
0
Sacramento, CA
There is no DAC inside the phone to output analog audio through the usb-c port. Any adapter you get will need to have one inside like the Google dongle does. If you are curious, check this out.

I personally don't think those little things sound that great and they can't drive sensitive IEMs or power hungry headphones very well from my experience, which is why I suggest products like the FIIO μBTR, BTR1 or 3, or Astell & Kern XB10, EarStudio ES100, so on and so forth. Of course the added expense is only worth it if you're driving good earphones, otherwise the Google dongle is just fine.
Well that would explain why some dongles work and some don't. Thanks for the link, very informative.
 

mtucker

Senior Member
Oct 23, 2011
194
135
0
Escondido
I'm a bit curious about the situation with the USB-C to 3.5mm. Do I need an adaptor with or without an DAC inside the adaptor, and what if there is an DAC inside or not?
You can use either type of adapter. The Oneplus7 Pro does have an audio DAC inside it. I have tried both passive (just past through analog audio) and active (have a DAC built-in) and they both worked with the Pro 7. Some phones (Pixel for example) don't have the capability to pass analog audio out the USB-C jack.
 

Elnrik

Senior Member
Nov 16, 2013
1,047
676
0
Denver
www.superbestaudiofriends.org
You can use either type of adapter. The Oneplus7 Pro does have an audio DAC inside it. I have tried both passive (just past through analog audio) and active (have a DAC built-in) and they both worked with the Pro 7. Some phones (Pixel for example) don't have the capability to pass analog audio out the USB-C jack.
Which passive adapter did you try this with to verify that?
 

mtucker

Senior Member
Oct 23, 2011
194
135
0
Escondido
Which passive adapter did you try this with to verify that?
The passive adapters were these ADTRIP ones https://www.amazon.com/gp/product/B07NVDT57C/ref=ppx_od_dt_b_asin_title_s00?ie=UTF8&psc=1
The active adapter I tried was this Essential Products one. https://www.amazon.com/dp/B079GZFWQ9/ref=cm_sw_em_r_mt_dp_U_jOY3CbK6NJ8RC
For kicks, I tried them both on my Pixel XL (it has a headphone jack, but I thought I would try). Like the Pixel 2 and 3, it only supported an active adapter that has a DAC built-in. The passive ones didn't work with it.
It is nice Oneplus supports analog out the USB-C port as they are cheaper (the one linked above is only $8 for two of them and next day delivery for Prime members).
 
  • Like
Reactions: nukejello

mtucker

Senior Member
Oct 23, 2011
194
135
0
Escondido
I'll bet dollars to doughnuts that adtrip has a DAC in it.
Although it is possible, it seems unlikely based on two things. 1. The ADTRIP adapters did not work on my Pixel XL. The Essential adapter did and we know the Essential has a DAC in it. 2. The ADTRIP adapter Amazon page specifically says it does not work with Pixel phones. Pixel phones need an adapter with a DAC built in.
Edit: Scrolling down further in the ADTRIP Amazon page, they have a chart that shows the specifications for each ADTRIP product. These two-pack audio adapters are analog (passive).
 

Attachments

  • Like
Reactions: xeebot

prfraczek

Senior Member
Dec 13, 2012
284
56
0
Oneplus usb c to 3.5mm is a passive adapter, meaning it uses internal DAC and running audio over usb port as analogue. It works the same way as mini jack output. But what oneplus done is they put small relay that turns OTG automatically when you plug in. All other analogues required going to settings and turning OTG every time you want to listen over headphones. Bare in mind this option turns itself off after 10 minutes of inactivity. I bought this and it's working fine. amazon.co.uk/gp/aw/d/B07MBWZZGL?psc=1&ref=ppx_pop_mob_b_asin_title