Do 3.5 mm BT dongle dacs support microphones?

My work headset broke and I could ask for a replacement but for some god forsaken reason, they decided to supply only cabled headsets. Not exactly keen on that.

I reckon they won’t mind as long I don’t actually connect to the laptop itself.
I know there are dongle DACs that connect to the 3.5 mm jack ( which is capable of supporting mics , I tried).

I suppose then that there would be such DACs that support BT.
What I don’t know is if such DACs are also capable of feeding through a microphone from a BT headset? Figured such DACs would be mostly for listening, not for connecting headsets?
Or is this a standard feature and I can get basically any combination of dongle DAC and bluetooth headset?

Not a standard feature, no. Most of them don’t support TRRS jacks, but if you look real hard a few models like the FiiO BTR3 at least give you a mic of their own, and the only challenge then will be mounting it somehow close to your mouth so you’re heard as well as with a headset’s boom mic.

I tried this at work for the wireless convenience about a decade back, but the quality I was sending out was… tragic. Bluetooth’s Headset Profile (HSP) transmits only mono and nothing near the quality of the codecs for stereo music (with some recent improvements).

My Fiio Btr5 supports mics that are built into iem cables. I looked around a little bit and it looks like the Btr13 also supports inline mics. So maybe look closer at their bluetooth adapters. Specifically if it mentions in-line mics or controls, then you should be good.

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It seems pretty 50/50 in terms of being on the product page. But I could definitely see it being so standard it’s not worth mentioning over the “cool” features.

Qudelix5k can do it.

I would imagine that the mic in the bt amp/dac should be better than the tiny one in the cable.

Aren’t all these options connecting via usb? I would need it to connect to the 3.5 output.

I guess I am looking for this:

So I say BT DAC, but I suppose I mean more of a bluetooth dongle but on the 3.5 jack instead of USB.

So music out, microphone in.

I’m imaging something along these lines, excpt…not shite:
image

This is completely different from the type we assumed you meant.

This one just enables your laptop to have bluetooth if it does not, if your laptop already has BT this BT adapter does not benefit you at all unless there are some connections/stability issues.

And yes if the BT headset has a mic it will work with anything that can receive BT signal.

Well there is a difference in that the adapter would be isolated from the PC. As far as the laptop is concerned, I simply have a headphone plugged in with a microphone. Yet I could still use a bluetooth headset.

That way I don’t have to worry about any compatability issues with them blocking access.

Correct me if I am wrong, but the examples mentioned so far connect to some source via BT or USB and you connect your CABLED headphone to that. I would need to connect a wireless headset to the DAC and have that connect to the source via the 3.5 jack…so kind of the other way round.

Not a problem unless the BT receiver in the motherboard is noisy or have issues.

Are you saying you want to use both a wired headphone (that has a mic but not enabled) and then a BT mic?

re.read my last reply, I updated it.

My concern is that they will block my access to BT on the laptop.
They may (and partially already do) block USB.
They will not block the 3.5 jack.

So the idea is to move the bluetooth transmission to the 3.5 jack via a dongle DAC and then have some bluetooth headset connect to that.

Yes the ones mentioned above such as the qudelix 5k and Fiio BTR lineup is simply a BT amp/dac that connects to source wireless and then wired to a transducer.

Wireless headsets with BT inside them already have their own dac/amp. You simply need the source to have BT output/input, if the source does not have BT you then need an adapter that connects via usb. Fiio recently released something like that, that enables access to pretty much all codecs.

Yea, except I need it to be NOT USB, but 3.5.
So take what the headphone jack is putting out and forward it to some headset, and in reverse, take what that headset sends from the mic and push that to the headphone jack.

What you want does not exist afaik.

OK, so this is obviously NOT a solution, but…maybe there is a cheaper /better way to do this XD

I found this The Wireless go from Rode:

if I could split the output jack into mix and sound, then I could have a pair of these XD
One “records” sound and transmits to the headset, and in reverse, if the headset has a separate mic output, it could record that and feed it to the previously split mic XD

I was hoping there we be a more realistic/feasable way to do this lol

Could you share what model headset you have?

None yet, I wanted to figure out how I could connect it first. If using the 3.5 is not really an option, I suppose I would have to go with some sort of bluetooth headset. In that case it would be strictly for work though, don’t think I would use it for anything else.

Maybe check if there is a wireless solution so I can extend the range.

Should still exist, e.g. https://www.aliexpress.com/item/1005006458063320.html

MPOW used to make one of these “2 in 1” units with the Tx/Rx switch when BT 4.1 was new, it’s been discontinued for a few years now. I still have and use it, but only as a receiver. It works OK as a transmitter but pretty low volume, I was always keeping it maxed when using as a Tx.

I hope you realize in this scenario you’re double-converting the signal both ways, i.e. the laptop converts it to analog with whatever mediocre DAC it has, then the BT Tx’er converts it to digital with some low-grade HSP codec, then the mediocre(?) DAC in the headset converts it to analog again. And same in the opposite direction for your voice signal. You better hope you can find a Tx unit that supports FastStream or the audio quality will be just ass. :smile: