[JQuB3]

Just wanted to add this also

This is neat. Although FiiO has released a clip case, it is bulky AF. Gonna try this one out cuz it is definitely sleeker. Thanks for the idea.

 

[Andrew_WOT]

Although FiiO has released a clip case, it is bulky AF.

100% agree, got one but quickly switched back to stock as that huge clip made BTR7 even bulkier than it is, not fitting carrying case.

 

[FiiO]

Hi Fiio,

Thank you for your reply.

Looks like it. I had the same glitches/pops in every track or source I tried, on two different windows 11 PCs: one laptop (work), one home desk pc.
Both had the FIIO DAC driver installed before I connected the device to the PCs.
The FIIO DAC driver was recognizing the device as FIIO Q series (don't think this is the actual issue, but worth mentioning that the driver does not recognize the device correctly).

On both my PCs, the glitches/pops disappeared after I completely removed the FIIO driver and restarted the computers. At that point both computers recognized the device as BTR7, glitches stopped, AIMP can now use exclusive modes and the driver for the BTR7 was provided by Microsoft which seems to work quite well.

Someone mentioned here that the FIIO driver is mainly to be able to play DSD files. I don't do that so, if that's the only use of the driver, I am happy to report that if you don't use DSD files, you can skip the driver.

Dear friend,

Thanks for the kind feedback. My colleague is using Win11 but he failed to reproduce the same problem. And yes, if you don't play DSD files, the USB DAC driver comes with the Win11 computer is compatible with the BTR7 as well.

Best regards

 

[Andrew_WOT]

No problems with FiiO driver on Win11 here either. BTW, there is 5.50 version available.

 

[stuck limo]

I would like some nice screensavers or something as an option. Music related screensavers. I think also displaying the song/artist/album etc. would be really cool.

 

[Andrew_WOT]

I think also displaying the song/artist/album etc. would be really cool.

I believe for that BTR7 need to support AVRCP 1.3+ profile. But screen is probably too tiny to fit any useful track info.

 

[Nick24JJ]

Newbie, maybe stupid, question.

On my phone, which is running Android 13, I am setting the Bluetooth audio sample rate to 44.1 kHz and the LDAC codec playback quality to 990/909 kbps.
When I pair my BTR7, it shows on the screen 44k/24B

Is there any upsampling or downsampling taking place when set like this?
@FiiO ?

 

[Andrew_WOT]

Was looking for some other dongle reviews yesterday and stumbled upon this review with measurements from Amir. Mighty impressive.
Most likely it was already posted before buried deep down in this gigantic thread.

 

[FiiO]

Newbie, maybe stupid, question.

On my phone, which is running Android 13, I am setting the Bluetooth audio sample rate to 44.1 kHz and the LDAC codec playback quality to 990/909 kbps.
When I pair my BTR7, it shows on the screen 44k/24B

Is there any upsampling or downsampling taking place when set like this?
@FiiO ?

Dear friend,

1. When connecting to my Xiaomi12 via LDAC, I did not set anything in the mobile phone and BTR7 shows 96k/24bit:

When I switched 44.1k as your setting, the BTR7 shows 44k/24bit:

2. When connecting the BTR7 to a mobile phone via Bluetooth, and switching the bit depth in the developer options of the mobile phone to other bit depth options, why would the BTR7still show 24bit?

You will find that it will also display 24bit under SBC encoding. In fact, this 24bit refers to the audio processing bit depth after decoding through Bluetooth. It is not the same indicator as the bit depth in the developer option of the mobile phone, nor is it the same one as the track itself.

This is related to the internal DSP of the Bluetooth chip QCC5124. To exert the maximum performance and audio processing capability of the DSP, we have adopted the highest 24bit specification. All decoded Bluetooth audio will be processed in 24bit before sending to the ES9219 DAC.

Best regards

 

[Nick24JJ]

Dear friend,

1. When connecting to my Xiaomi12 via LDAC, I did not set anything in the mobile phone and BTR7 shows 96k/24bit:

When I switched 44.1k as your setting, the BTR7 shows 44k/24bit:


2. When connecting the BTR7 to a mobile phone via Bluetooth, and switching the bit depth in the developer options of the mobile phone to other bit depth options, why would the BTR7still show 24bit?

You will find that it will also display 24bit under SBC encoding. In fact, this 24bit refers to the audio processing bit depth after decoding through Bluetooth. It is not the same indicator as the bit depth in the developer option of the mobile phone, nor is it the same one as the track itself.

This is related to the internal DSP of the Bluetooth chip QCC5124. To exert the maximum performance and audio processing capability of the DSP, we have adopted the highest 24bit specification. All decoded Bluetooth audio will be processed in 24bit before sending to the ES9219 DAC.

Best regards

Thank you for your reply, it helps me understand a few things better. What I've referred to, though, was the Bluetooth audio sample rate. By default, it is set to 96kHz and I manually set it to 44.1 kHz.

Let me rephrase my question. Please, look at the screenshot. This is how I am setting up my Samsung S23 Ultra each time I am using my BTR7.
Are these the best possible Settings to avoid any unnecessary conversions of any kind?

Allow me to ask the same, in a different manner.
Let's say, I have one .WAV file which is 16 bit and 44.1 kHz on my smartphone. I set Bluetooth as shown in the screenshot. I start playing my .WAV file using USB Audio Player Pro.

Can you tell me, @FiiO , what is happening to my .WAV file? What kind of conversions or processing is taking place until I will listen to the sound from the BTR7?

 

[Andrew_WOT]

I believe displayed 44 is in fact 44.1. Is that your concern, mismatch between bitrates?

 

[pacmanbr]

@FiiO what's the ideal configuration for use as an USB desktop DAC/Amp, to avoid battery degradation?

Should I set the charge switch to On and activate battery protection?

 

[LoryWiv]

@FiiO what's the ideal configuration for use as an USB desktop DAC/Amp, to avoid battery degradation?

Should I set the charge switch to On and activate battery protection?

That is what I do.

 

[FiiO]

Thank you for your reply, it helps me understand a few things better. What I've referred to, though, was the Bluetooth audio sample rate. By default, it is set to 96kHz and I manually set it to 44.1 kHz.

Let me rephrase my question. Please, look at the screenshot. This is how I am setting up my Samsung S23 Ultra each time I am using my BTR7.
Are these the best possible Settings to avoid any unnecessary conversions of any kind?

Allow me to ask the same, in a different manner.
Let's say, I have one .WAV file which is 16 bit and 44.1 kHz on my smartphone. I set Bluetooth as shown in the screenshot. I start playing my .WAV file using USB Audio Player Pro.

Can you tell me, @FiiO , what is happening to my .WAV file? What kind of conversions or processing is taking place until I will listen to the sound from the BTR7?

Dear friend,

You could check this picture for help:

Best regards

 

[FiiO]

@FiiO what's the ideal configuration for use as an USB desktop DAC/Amp, to avoid battery degradation?

Should I set the charge switch to On and activate battery protection?

Dear friend,
Some user prefer to turn off the charging switch when using the BTR7 as USB DAC for computer.
And some user turn the charging switch to on in order to avoid the BTR7 be out of battery. You could choose according to your need. Both would not add the battery defradation.

Best regards