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BTR3 Issues with Microphone and Accumulator

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Post time 2018-12-9 19:30:45 |Show all posts |
Edited by Dmitry87 at 2018-12-9 19:43

I've been using BTR3 for quite a while and noticed 2 problems:
1) Accumulator charge indicator doesn't show correct value. When it shows 30% left it actually means there is no charge left... a bit confusing.
2) Microphone works properly only when it's quiet around. If there is a noise the microphone isn't useful. I would describe it like that:
the louder the noise around - the quieter my voice and the stronger the noise in the output. I have a guess that it somehow distinguishes the noise and multiplies it, which makes it impossible to use the mic while on transport.

Btw NCT doesn't work when I listen to music, shall it work that way?
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Post time 2018-12-10 16:00:22 |Show all posts |
Edited by FiiO at 2018-12-12 09:23

Dear friend,

1. Because of the low precision of bluetooth electricity meter, it can indicate its approximate quantity of the battery which can still meet the daily using. Most Bluetooth devices in the market are also with low precision. The red indicator would light up when it is in low battery status.

2. What's the firmware version of your BTR3? Is it latest 1.0?
You could install the latest version FiiO Music and have a check:
QQ图片20181210155715_副本.jpg





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Post time 2018-12-11 02:10:10 |Show all posts |
Thanks for your reply. I use 1.0.4 version, not sure if the microphone problem appears on other firmware versions. I guess 1.0.4 is the most recent version?

I checked 4pda forum and found 3 complains about exactly the same problem:
https://translate.google.com/tra ... D20%23entry78763405
https://translate.google.com/tra ... 360%23entry79815756
https://translate.google.com/tra ... 340%23entry79771382
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Post time 2018-12-12 09:51:27 |Show all posts |
Dear friend,

Your BTR3 is in 1.0.4? But the latest firmware version is v1.0 instead{:2_36:}
And the latest Android version FiiO Music APP is 1.0.5.
You could check the firmware version of your BTR3 in the FiiO Music first. If it is not v1.0, please try to update the firmware according to the instruction first:
BTR3 firmware v1.0: click here
How to upgrade the BTR3: click here
The BTR3 is equipped with Qualcomm's cVc noise cancellation technology and automatic gain control. If you are in a louder noise environment(or the BTR3 is too far away, the mic is blocked) , the gain will be increased which may lead to distortion.
You could try to hold the BTR3 and keep close to the microphone for try again.
We will also report to the engineer for improving this problem.

Best regards     
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Post time 2018-12-13 02:05:14 |Show all posts |
Edited by Dmitry87 at 2018-12-13 16:40

FiiO, pardon, mixed up. My firmware version is v1.0 and FiiO Music APP is 1.0.4. But it's unlikely the app problem, I hardly use it. Could it be a hardware problem?
----------------------------------
UPD:
I've just checked, the app updated automatically to 1.0.5 long ago, the problem still persists.
Another occasion: https://www.head-fi.org/threads/ ... ge-51#post-14654331
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Post time 2018-12-14 09:11:35 |Show all posts |
Dmitry87 replied at 2018-12-13 02:05
FiiO, pardon, mixed up. My firmware version is v1.0 and FiiO Music APP is 1.0.4. But it's unlikely t ...

Dear friend,

We could not confirm whether it is a hardware issue before checking your BTR3.
If the microphone of the BTR3 has affected your daily using, maybe you could contact the seller for the replacement.

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Post time 2018-12-18 17:17:42 |Show all posts |
sebox made some investigation on the problem:
https://translate.google.com/tra ... 61002&sandbox=1

According to csr8675  specification there should be 2 mics. One in mouth direction and the other in another direction.  The noise level would be the same in both lines and the voice level would be higher in the first line so csr8675 can easily tell what's noise from what is not and distinguish the voice. I'm pretty sure there is only one microphone (a least in my dongle) therefore  NCT can't work properly. May be there is one, but they forgot to make a hole for it? Where is it exactly located?
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Post time 2018-12-20 08:58:06 |Show all posts |
Dear friend,

Thanks for your kind feedback. We will also report to the engineer for checking about that first. If there are local store in your city, you could also compare the demo and your own BTR3 as well.

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Post time 2019-5-1 00:36:55 |Show all posts |
Hello. Any news about this problem?
I can confirm that the noise cancellation is simply not working, very disappointing.
My unit seems to be fine overall, but I am considering to send it back to Amazon due to the noise cancellation under the 2 year warranty.
Best.
Jacob.
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Post time 2019-5-3 01:37:52 |Show all posts |
Edited by Dmitry87 at 2019-5-3 01:46
jacobacevedog replied at 2019-5-1 00:36
Hello. Any news about this problem?
I can confirm that the noise cancellation is simply not working, ...

There is no NCT in BTR3. The chip supports it, but no microphone is connected to second input MIC B, therefore NCT doesn't work. No firmware update can fix it, unfortunately. Headset mic has no physical connection to neither MIC A nor MIC B as well. Having 2 mics is absolutely necessary for NCT to work: https://translate.google.com/tra ... D80261002&sandbox=1

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Post time 2019-5-6 17:35:19 |Show all posts |
jacobacevedog replied at 2019-5-1 00:36
Hello. Any news about this problem?
I can confirm that the noise cancellation is simply not working, ...

Dear friend,

Please try to update to this firmware and check again:
http://fiio-firmware.fiio.net/BT ... c_cvc_2019-1-25.dfu

Instruction: https://www.fiio.com/newsinfo/84403.html

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Post time 2019-5-15 00:55:25 |Show all posts |
FiiO replied at 2019-5-6 17:35
Dear friend,

Please try to update to this firmware and check again:

Fiio!

You didn't respond to question that was asked!
Dmitry87 pointed out that for Noise Suppression feature the two microphones are required!
While Fiio BTR3 use only the internal microphone.

Therefore your claims about NCT (from Qualcom csr8675 chip) cannot work!

How will you respond to that?!
It seems that you lie in advertisement materials!
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Post time 2019-5-16 15:44:39 |Show all posts |
Dear friend,

Thanks for your feedback. And I have confirmed your question with the engineer as well.

Yes,CSR8675 does support 2xmic,and also NCT. However, this two mic is available in Noise cancellation  headphone  because one of the mic is used for connecting the sound near the ear in order to acheive the noise cancellation correctly. The Comparing with Noise cancellation headphone, Bluetooth receiver is not used near the ear, so it only support one mic instead.  

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Post time 2019-6-28 20:56:38 |Show all posts |
Hi everyone!

Have you experience any improvement in the quality of phone calls?
NCT working properly with the Firmware Version 1.2??

Please let me know.
Thanks.
Jacob.
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