Thank you very much brother, I bought a ground loop isolator and once again I have my system in complete silence!!
Hey guys, very informative thread!
Im using the NVArcher DSP for my system.
There are two scenarios Im using it:
1. As a 2.1-system, here the DSP acts as an active crossover with high- and lowpass and sound optimizer.
2. As a 2.0-system, here the DSP just acts as a sound optimizer and lets all frequencies through the stereo-output.
So I need two presets, one for the 2.1 scenario and one for the 2.0 scenario.
I can switch trough the presets with the software and a laptop.
Is there a possibility to switch between the presets without a laptop?
Like switching between BT and aux via short circuiting square and G? Maybe theres another combination to switch the saved presets.
So I could a button on my speaker to switch between 2.1 preset and fullrange preset.
Thank you!
Please say me, if I should start a new thread for this topic.
Im using the NVArcher DSP for my system.
There are two scenarios Im using it:
1. As a 2.1-system, here the DSP acts as an active crossover with high- and lowpass and sound optimizer.
2. As a 2.0-system, here the DSP just acts as a sound optimizer and lets all frequencies through the stereo-output.
So I need two presets, one for the 2.1 scenario and one for the 2.0 scenario.
I can switch trough the presets with the software and a laptop.
Is there a possibility to switch between the presets without a laptop?
Like switching between BT and aux via short circuiting square and G? Maybe theres another combination to switch the saved presets.
So I could a button on my speaker to switch between 2.1 preset and fullrange preset.
Thank you!
Please say me, if I should start a new thread for this topic.
There is only one configuration stored in the DSP:s memory, so switching between configurations is AFAIK not possible.
Switching between inputs is possible, by rapidly shorting some terminals like you suggested (if you accidentally make a long press something else happens).
Switching between inputs is possible, by rapidly shorting some terminals like you suggested (if you accidentally make a long press something else happens).
Rapidly shorting Ground and Square is switching the inputs, right.
Shorting long these 2 terminals, something happens and shorting them two times rapidly, the program has another EQ settings. But still on A. But I dont know how to save two different presets haha
Shorting long these 2 terminals, something happens and shorting them two times rapidly, the program has another EQ settings. But still on A. But I dont know how to save two different presets haha
As you wrote below, double pressing the square button (which is double shorting the square pin to ground) changes EQ. On my board there were 5 EQ presets; I think that if you change the EQ to one of those and then edit the parameters it should save it, but I haven't tried personally. Also, I don't know if you can remove unwanted configurations so that you only get two...
How is the sound quality of these NVArcher DSP’s? I still have not gotten around to programming and trying it out yet.
Someone measured it on page 10 of this thread, the result does not look very impressive.
My personal experience is that it sounds a bit harsh, almost like electric guitar distortion but much more subtle.
Hi, has someone figured out how to pair in TWS mode this one? I just can't figure it out.
According to some similar images, the TWS option is called by long pressing the start button, but every time I do that the board just turns off and I have to do a power cycle (I have two boards, and they do the same).
The rest of the board works fine, I can switch between Bluetooth and Line In, I can turn the volume up and down, I can apply EQ to the sub output and a different EQ to the Line Out, just missing the TWS function.
Thanks!
According to some similar images, the TWS option is called by long pressing the start button, but every time I do that the board just turns off and I have to do a power cycle (I have two boards, and they do the same).
The rest of the board works fine, I can switch between Bluetooth and Line In, I can turn the volume up and down, I can apply EQ to the sub output and a different EQ to the Line Out, just missing the TWS function.
Thanks!
Sometimes I see (in the very inexpensive category...) BT devices that say "True Wireless" on the packaging. But the word "stereo" is missing and not found anywhere on the box printing. They wouldn't - would they?
The “TinySine” TWS Bluetooth adapters need to be reprogrammed to work in stereo in TWS mode. The proprietary programmer costs much more than the modules. By default they work in dual mono.
I have yet to buy the programmer.
I have yet to buy the programmer.
I’m surprised they don’t use standard serial (like RS232), I2C or SPI interface for programming. Those programmers are inexpensive.
https://www.tinyosshop.com/tws-bluetooth-audio-receiver-board
The PCB is minuscule, which might justify the interface choice.
https://www.tinyosshop.com/index.php?route=product/product&product_id=874
The cost for the programmer is, admittedly, offputting.
The PCB is minuscule, which might justify the interface choice.
https://www.tinyosshop.com/index.php?route=product/product&product_id=874
The cost for the programmer is, admittedly, offputting.
I was wondering whether I should post my question in a new thread. But since I'm specifically interested in TWS, I'll ask here:
I have the idea of developing two three-way loudspeakers and would like to install one Sure JAB5 or Dayton KABD-4100 per speaker (they seem to be identical in construction).
Their BT chip does not seem to support TWS, but this would be essential.
I would therefore like to use two external BT boards that supports TWS. I would them to have I2S outputs. If something like this is only available with line outputs, good quality would be important to me. I wouldn't need any DSP functionalities as these are already available in the JAB5/KABD-4100.
Does anyone have any ideas about what I could use?
Or is it perhaps even possible to "teach" the BT chip on the JAB5/KABD-4100 TWS retrospectively?
I have the idea of developing two three-way loudspeakers and would like to install one Sure JAB5 or Dayton KABD-4100 per speaker (they seem to be identical in construction).
Their BT chip does not seem to support TWS, but this would be essential.
I would therefore like to use two external BT boards that supports TWS. I would them to have I2S outputs. If something like this is only available with line outputs, good quality would be important to me. I wouldn't need any DSP functionalities as these are already available in the JAB5/KABD-4100.
Does anyone have any ideas about what I could use?
Or is it perhaps even possible to "teach" the BT chip on the JAB5/KABD-4100 TWS retrospectively?
Does anyone know if "audio delay" is supported for the bass channel?
In the ACPWorkbench version I'm using, it is only configurable for the L+R channels, but I'm wondering if that is perhaps a software issue.
Background info: I was thinking of passing the L+R outputs on to a BT transmitter, which would likely incur a delay, and need to be compensated by a similar delay on the bass channel.
In the ACPWorkbench version I'm using, it is only configurable for the L+R channels, but I'm wondering if that is perhaps a software issue.
Background info: I was thinking of passing the L+R outputs on to a BT transmitter, which would likely incur a delay, and need to be compensated by a similar delay on the bass channel.
Never mind my previous question, if I understand correctly this DSP is a pretty generic RISC processor that (given the right firmware) can do pretty much anything. Probably boot Linux too...
Finding the right firmware to actually do what you want may not be that easy though, but I decided that relaying the Bluetooth signal is a bad idea so I will go for a different solution. Some phones can play audio via multiple BT devices at the same time, which certainly helps.
Finding the right firmware to actually do what you want may not be that easy though, but I decided that relaying the Bluetooth signal is a bad idea so I will go for a different solution. Some phones can play audio via multiple BT devices at the same time, which certainly helps.