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Re: Hero 5 mic adapter hack

PostPosted: Fri Feb 17, 2017 1:03 am
by suryaprihadi
Dear All,

Let me repeat again with simpler explanation on this Mic thingy for Black5, so that you guys know what to expect.

Hero4 uses analog input for mic, its pure wire to wire matters. So what the old 3.5mm mic adapter did was... to use a few connections already available on the Hero4 unique 10 connections USB port. USB 2.0 standard is 5 connection only.
So I said that GoPro unique 10 connections USB port is indeed unique. 1 row of 5 pins is USB.Org standard, 1 other row of 5 pins is GoPro own connection, and mic connection is there.

Black5 is totally a different, it does not allow analog simple wire connection for external mic.
It uses a true USB-C standard, and GoPro no more wants its mic adapter to inject analog signal, GoPro wants digital signal because it will create a stand-alone professional WAV file for every video which uses this Pro 3.5mm mic adapter. This thing is not an adapter, it is actually a CONVERTER. Analog to digital converter that is.

This is the flow/connection chart :

Old hero 4
External Mic >>> 3.5mm mic adapter >> mic gets connection to the available pins of the 10 pins unique USB port on camera.
Hero4 then recognized this input and bypass its built in mic and instead uses the external mic feed. Audio remain as stereo, only 2 channel in the MP4 video output of Hero4.

External Mic >>> analog signal >>>Pro 3.5 mm mic adapter/converter >> analog signal converted to digital WAV by the adapter/converter>>>converted to USB-C standard so that it can use the USB-C data path>> camera then detect this WAV file and create a separate extra WAV audio track while its MP4 still has its own audio track. So basically the output MP4 video is still stereo but extra WAV audio file is available for signal from the external mic. This is why this adapter/converter cant be cheap and small as old model adapter, because it has electronics inside it and also can do power injection thru USB-C too.

Well GoPro can actually make a USB-C 3.5mm mic adapter a dummy version like the old one, I am sure but they will load their cam processor more if they want to create that beautiful high end WAV file.

The WAV file Gopro uses is professional specification, no kidding.
It is a PCM Signed 32-bit little-endian, 1024kbps, 48000Hz 4 channels.

So remember and dont think this is wire to wire matters, its much more complex.

Have fun....

Re: Hero 5 mic adapter hack

PostPosted: Tue Mar 21, 2017 5:27 am
by Transposure
Hey Guys,
This is my first post here. I hope I might be able to get a little help.
I have a GoPro Hero 5 and I have it adapted for use on a DJI Osmo Mobile. Since the GoPro records all of the motor noises of the gimbal, I decided to get the GoPro microphone adapter to use an off-camera microphone (Rode VideoMicro). It works fine with the mic plugged into the GoPro adapter and the adapter plugged into the Hero 5. I have audio preferences set to "Standard".
Here is the problem though...
The GoPro mic adapter is too short. As another guy mentioned here, the way around this is to add an extension cable from the GoPro to the GoPro Mic Adapter, so the rectangular brick can be mounted on the gimbal and not suspended with the camera. Every single USB Type-C extension cable I have tried does not work. I really don't get it. I mean, isn't every wire simply connected at one end and the other end? What gives? Any work arounds?

In essence, I am looking for a short USB Type-C extension cable that will plug into the Hero 5 on one end (Male End) and the GoPro Microphone adapter at the other end (Female End).

Re: Hero 5 mic adapter hack

PostPosted: Wed Mar 22, 2017 5:16 am
by Transposure
Does anyone have any insight as to why an extension cable will not work with the GoPro Mic Adapter? See my post above.

Re: Hero 5 mic adapter hack

PostPosted: Fri Mar 24, 2017 3:57 am
by suryaprihadi
I have no experience with USB-C extension cable.
All I can say is that, your USB-C extension cable is probably not 100% USB-C standard compliance.
When an extension cable does not work, and without it the Pro 3.5mm mic adapter works, it can only mean the extension cable is at fault.

Reading initial mayhem of USB-C cable : ... names.html
I am not surprised some crap-shiet manufacturer does not follow standard.

USB-C is not free, one must pay and register and be tested.

Do more careful shopping...

Re: Hero 5 mic adapter hack

PostPosted: Wed Mar 29, 2017 4:06 am

As long as all the pins are straight through it should work. Most likely it's just passing the VBAT, GND and D+/D- lines and not the full 24 USB-C pins.


Re: Hero 5 mic adapter hack

PostPosted: Wed Mar 29, 2017 7:34 am
by Transposure
That was my feeling as well. It is so frustrating after trying three separate cables. Ugh.
I want a short male (90 degree) to straight female USB Type C cable, with full pin connections. Any thoughts on a source??


Re: Hero 5 mic adapter hack

PostPosted: Tue Apr 18, 2017 12:25 pm
by smoothbassman
Give it some time. Someone will make something that will work with the H5

Sent from my SAMSUNG-SM-N920A using Tapatalk

Re: Hero 5 mic adapter hack

PostPosted: Wed Jun 07, 2017 10:33 pm
by FreezerMoosh
herzogging wrote:Hi, New to the forum and bought a Hero 5 Session to Vlog on a motorbike but found the mic adapter is 1/3 the price of the device! So, I am trying to work out a hack. I am in Hong Kong, so there are lots of sources to mix and match. Hopefully, with some guidance from some Boffin, I might be able to work out something that can be shared with others needing an alternative to a $50 cable.

So far, I have tried and failed:

USBC-3.5mm - bog standard and also the LeTV

Would it be worth plugging a USB mic into the charging cable?

Any other ideas welcome. I'll try and let you know.

I'm sure there is something available. Adapters for previous iterations of the Hero are just $3 here, and they work fine.

Just buy the expensive one

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Re: Hero 5 mic adapter hack

PostPosted: Fri Jun 23, 2017 7:28 pm
by smoothbassman
syilim wrote:Does anyone know if the audio adapter would work if I connected it via a legit usb 3.0 type C cable to the H5? Something like this
I want to use the H5 on a gimbal like feiyu G5, but also with external audio. But the Audio adapter is too heavy, so only way to work on gimbal is to attach it to the handle as to not affect the motors. But the cable is too short and rigid, and therefore would only work if I could attach it via an usb c extension cable. Thanks for your help.

I want to do the same thing, run my camera on a gimbal with external audio.

GP has to give us a solution to that problem.

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