FiiO BTA30,Hi-Fi desktop bluetooth receiver&transmitter,RCA/Optical/Coaxial interface
Dec 10, 2020 at 1:34 PM Post #196 of 584
I hope you find my response helpful.
Yes, you were very helpful.
When will this device be available in Europe? I mean Amazon Spain, UK... I prefer to buy from those sites instead of Ali Express.

And 2 last questions, please:
- Can this device increase the sample rate of the source on TRANSMIT mode (upsampling ability up to 192kHz)? Or is this feature only available when using as a DAC?
- Does this device support firmware updates with the Fiio Control companion app?

Many thanks for your help
 
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Dec 10, 2020 at 8:14 PM Post #197 of 584
Yes, you were very helpful.
When will this device be available in Europe? I mean Amazon Spain, UK... I prefer to buy from those sites instead of Ali Express.

And 2 last questions, please:
- Can this device increase the sample rate of the source on TRANSMIT mode (upsampling ability up to 192kHz)? Or is this feature only available when using as a DAC?
- Does this device support firmware updates with the Fiio Control companion app?

Many thanks for your help
Hi,
Unfortunately, the European Amazon is the responsibility of the agent not our direct sales. You can ask your local agent, we show here that we have orders in Europe, but the quantity is limited I'm not sure if they sell on Amazon.
Regarding your two questions.
1, in TX mode, if you use Optical or Coaxial input, then he supports up to 192kHz/24bit and LDAC; when it is in USB input, it only supports up to 48kHz/16bit.
2,BTA30 support firmware updates with the Fiio Control companion app
 
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Dec 11, 2020 at 5:02 AM Post #198 of 584
1, in TX mode, if you use Optical or Coaxial input, then he supports up to 192kHz/24bit and LDAC; when it is in USB input, it only supports up to 48kHz/16bit.
I think you didn't understand question 1. According to the advertised features:
The DSP allows any digital audio signal to be upsampled to 192kHz, greatly improving audio accuracy for a better listening experience.
So what does this statement mean? Will any digital signal be upsampled to 192kHz on DAC mode only? Or will this feature still be available when on RX/TX mode too?

Thanks again
 
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Dec 12, 2020 at 1:13 AM Post #199 of 584
I think you didn't understand question 1. According to the advertised features:
The DSP allows any digital audio signal to be upsampled to 192kHz, greatly improving audio accuracy for a better listening experience.
So what does this statement mean? Will any digital signal be upsampled to 192kHz on DAC mode only? Or will this feature still be available when on RX/TX mode too?

Thanks again

Hi,

Even if I am no official of FiiO, I think there is already one simple answer to your question.

If in TX mode, the file will be converted to the Bluetooth codec you're using. So I think it is pointless to upsample it to 192khz. As far I know, there is no Bluetooth protocol allowing to stream files in 24/192. The 2 best codecs (or supposedly best) codec, struggle to achieve 24/96khz transmission. So I assume that would be pointless.

In RX mode, the upsample is possible, but I still do not see the benefits of it. The file arrives as compressed Bluetooth "encoded" file. So that gives a lot of compression. Decompressing AND upsampling it can't do any good to sound.

I even doubt that upsampling something in 16/44 do 24/192 will do any real good. If you ask me, I always think that what comes out of the device should be as close as possible to what gets in. So a DAC should output 16/44 when it's fed with 16/44 or 24/96 if it is fed 24/96.

Just my personal thoughts.

Regards.
 
Dec 12, 2020 at 6:02 AM Post #200 of 584
Hi,

Even if I am no official of FiiO, I think there is already one simple answer to your question.

If in TX mode, the file will be converted to the Bluetooth codec you're using. So I think it is pointless to upsample it to 192khz. As far I know, there is no Bluetooth protocol allowing to stream files in 24/192. The 2 best codecs (or supposedly best) codec, struggle to achieve 24/96khz transmission. So I assume that would be pointless.

In RX mode, the upsample is possible, but I still do not see the benefits of it. The file arrives as compressed Bluetooth "encoded" file. So that gives a lot of compression. Decompressing AND upsampling it can't do any good to sound.

I even doubt that upsampling something in 16/44 do 24/192 will do any real good. If you ask me, I always think that what comes out of the device should be as close as possible to what gets in. So a DAC should output 16/44 when it's fed with 16/44 or 24/96 if it is fed 24/96.

Just my personal thoughts.

Regards.
It makes sense, but I have seen a review of the BTA30 on YouTube showing the Fiio Control app on a smartphone, and there is one option called 'Digital up-sampling', so there it is. You can enable/disable it.

On the other hand, I just want to point out that there is a new codec called 'UAT' ('Ultra Audio Transmission', developed by Hiby) supporting up to 24 bit / 192 kHz, 1.2Mbps bitrate. Obviously, the BTA30 does not support this codec so this is only FYI. Only high-end smartphones, Hiby digital audio players and selected DACs support it (for example, SMSL M200, SU-9...)
 
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Dec 12, 2020 at 8:26 AM Post #201 of 584
I have the ifi iPower X 5v coming to power the the BTA30. Just like when the BTA30 arrived, it will be handed to my spouse till I find it under the tree on the 25th. I have the Shure BT2 to receive aptx LL (and a few TWS, no aptx LL) to use...in 2 more weeks.

Will also experiment with my Burson Cable+ Pro to the AE A2s and Fostex PMO 4s.

New EMK cables arrived. Yup, handed over till Christmas.
 
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Dec 12, 2020 at 11:10 AM Post #202 of 584
With the Bta 30 I want to use it as a transmitter for my radio. The radio has a headphone jack. I was wondering how I connect the BTA 30 to the radio. Do I have to purchase an adapter for this. For example do I purchase a RCA cable to 3.5 mm port or a coaxial to 3.5 mm cable.
I would appreciate anyone's help.
 
Dec 12, 2020 at 12:28 PM Post #203 of 584
With the Bta 30 I want to use it as a transmitter for my radio. The radio has a headphone jack. I was wondering how I connect the BTA 30 to the radio. Do I have to purchase an adapter for this. For example do I purchase a RCA cable to 3.5 mm port or a coaxial to 3.5 mm cable.
I would appreciate anyone's help.

BTA30 doesn't have analogue input. This was one of the suggestions we all said earlier in this thread, but Fiio obviously didn't listen.

You would need an analogue to digital converter of some sort if you wanted to use the BTA30. But you're probably better off choosing a different transmitter than has analog input. Avantree Oasis Plus is one option, but doesn't have LDAC, only AptX-HD (it does do dual-link with AptX-Low Latency though!).
 
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Dec 12, 2020 at 12:30 PM Post #204 of 584
BTA30 doesn't have analogue input. This was one of the suggestions we all said earlier in this thread, but Fiio obviously didn't listen.

You would need an analogue to digital converter of some sort if you wanted to use the BTA30. But you're probably better off choosing a different transmitter than has analog input. Avantree Oasis Plus is one option (but doesn't have LDAC, only AptX-HD).
Thanks for your help.
 
Dec 13, 2020 at 1:36 AM Post #205 of 584
Hi all,

I use my BTA30 exclusively as an LDAC transmitter. I intend to feed it 24/192 over coax through a Topping D10s when the DAC arrives. Currently it is being fed 24/96 over optical from my desktop. If I attempt to feed 24/192 over optical, I get audio but with lots of intermittent pops and cracks. Some articles suggest that 24/192 input should be done with coax instead of optical. I am deliberating if I should go out to buy a dedicated 75ohm coax cable. These dont look cheap.

First, a few questions:
  • Will there be a difference for TX to be feeding it 24/192?
  • Does 24/96 get passed straight to bluetooth without additional processing? i.e. will 24/192 force the unit to decode and compress into 96khz again? I worry because I dont want added latency.
My bluetooth receivers are a set of ES100 and BTR5.
I just want the best signal possible over bluetooth.

Thanks!
 
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Dec 13, 2020 at 3:03 AM Post #206 of 584
Hi all,

I use my BTA30 exclusively as an LDAC transmitter. I intend to feed it 24/192 over coax through a Topping D10s when the DAC arrives. Currently it is being fed 24/96 over optical from my desktop. If I attempt to feed 24/192 over optical, I get audio but with lots of intermittent pops and cracks. Some articles suggest that 24/192 input should be done with coax instead of optical. I am deliberating if I should go out to buy a dedicated 75ohm coax cable. These dont look cheap.

First, a few questions:
  • Will there be a difference for TX to be feeding it 24/192?
  • Does 24/96 get passed straight to bluetooth without additional processing? i.e. will 24/192 force the unit to decode and compress into 96khz again? I worry because I dont want added latency.
My bluetooth receivers are a set of ES100 and BTR5.
I just want the best signal possible over bluetooth.

Thanks!

The realization of Bluetooth transmission 192k/24b signal, not a technical problem, FiiO can also be achieved, the key is to achieve nothing meaningful, the transmission distance and transmission effect is relatively poor, as you said will often break the sound.
In technically speaking, the current Bluetooth bandwidth and duty cycle is basically close to the limit.
You can experience LDAC, LDAC can transmit a maximum of 96k/24b signal, but the stability and transmission distance have been a problem, you can try to increase the transmission distance in the case of LDAC without automatic frequency reduction and then listen to music
We do products are trying to make more people accept and like, we are not technical mania, more people like our products is what we want!
Thank you very much for your support, we will do more research in Bluetooth, and strive to bring you better products!
 
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Dec 13, 2020 at 3:16 AM Post #207 of 584
With the Bta 30 I want to use it as a transmitter for my radio. The radio has a headphone jack. I was wondering how I connect the BTA 30 to the radio. Do I have to purchase an adapter for this. For example do I purchase a RCA cable to 3.5 mm port or a coaxial to 3.5 mm cable.
I would appreciate anyone's help.
Sorry.
We did not consider the 3.5mm output to Bluetooth transmitting out in the product design at the beginning, this is our problem, may be considered in the later products.
I found a device on amazon that has a 3.5mm analog to digital output, maybe it can help you
If you have any other questions, you can contact me privately or via Twitter, thank you very much!

https://www.amazon.com/Digital-Conv...words=Analog+to+digital&qid=1607847005&sr=8-7
 
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Dec 13, 2020 at 3:18 AM Post #208 of 584
The realization of Bluetooth transmission 192k/24b signal, not a technical problem, FiiO can also be achieved, the key is to achieve nothing meaningful, the transmission distance and transmission effect is relatively poor, as you said will often break the sound.
In technically speaking, the current Bluetooth bandwidth and duty cycle is basically close to the limit.
You can experience LDAC, LDAC can transmit a maximum of 96k/24b signal, but the stability and transmission distance have been a problem, you can try to increase the transmission distance in the case of LDAC without automatic frequency reduction and then listen to music
We do products are trying to make more people accept and like, we are not technical mania, more people like our products is what we want!
Thank you very much for your support, we will do more research in Bluetooth, and strive to bring you better products!

Hi Wilson,

Thank you for the response. I am not so much asking for the product to be improved. Rather, I just want to utilise its maximum capability in TX mode.

Distance and signal integrity is not an issue as I sit right in front of the unit. The reason I ask is because I love listening to music and want to hear the best of what my desktop can output, but without having to be physically tethered to a desktop amp.

Wether 24/192 can be sent over blueetooth is besides the point. What I want to know is if it can make use of 24/192 input in TX mode.

Plain facts instead of a hypothetical response would be much appreciated. I am already very happy with the product and I want to know more about it.

Thanks.
 
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Dec 13, 2020 at 3:31 AM Post #209 of 584
Hi Wilson,

Thank you for the response. I am not so much asking for the product to be improved. Rather, I just want to utilise its maximum capability in TX mode.

Distance and signal integrity is not an issue as I sit right in front of the unit. The reason I ask is because I love listening to music and want to hear the best of what my desktop can output, but without having to be physically tethered to a desktop amp.

Wether 24/192 can be sent over blueetooth is besides the point. What I want to know is if it can make use of 24/192 input in TX mode.

Plain facts instead of a hypothetical response would be much appreciated. I am already very happy with the product and I want to know more about it.

Thanks.

In TX mode, BTA30 Can support Up to 192K/24B input, and Support LDAC/aptX HD/aptX LL/aptX/SBC out, but you know, Even LDAC can only transmit 96k 24bit signals stably, depending on the characteristics of LDAC itself。
Perhaps this feature summary image will give you a better understanding of the BTA30.

微信图片_20201213162325.png
 
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Dec 13, 2020 at 4:49 AM Post #210 of 584
In TX mode, BTA30 Can support Up to 192K/24B input, and Support LDAC/aptX HD/aptX LL/aptX/SBC out, but you know, Even LDAC can only transmit 96k 24bit signals stably, depending on the characteristics of LDAC itself。

Thanks!
Can you confirm if it gets 24/192 input, will it be compressed before bluetooth transmission? Trying it right now over optical, I get sound with cracking and popping. Is this due to optical limitation, or will there be no difference if I use coax cable instead?
 

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