True Wireless Stereo (TWS) Bluetooth for Speakers

[irribeo]

I initially thought ACPWorkbench was Arylic's but now I think it is MVSilicon's. If you have the correct version program for the chip used and the pcb is designed as MVSilicon intended, it should work

 

[Nissep]

Also, here's a TPA3255 board I just found with the same DSP chip...

https://www.aliexpress.us/item/3256804402331203.html?

Excellent price if it functions properly.

I asked wondom/sure that is one of the reseller of that board. And they said it’s missing a way to access the programming pins/usb connection.
But there is another version that I linked to that have a connection for usb programming.

 

[Nissep]

I initially thought ACPWorkbench was Arylic's but now I think it is MVSilicon's. If you have the correct version program for the chip used and the pcb is designed as MVSilicon intended, it should work

https://cdn.shopifycdn.net/s/files/1/0072/6899/1049/files/ACPWorkbench-ENG.pdf?v=1599874237

Seems to be mvsilicon.

And after last nights trials I’m starting to loose hope, I’ve been fooling myself and thinking the eq actually get programmed to the board but it’s when I load a save config file on the computer it gets live updated.

 

[theAnonymous1]

I asked wondom/sure that is one of the reseller of that board. And they said it’s missing a way to access the programming pins/usb connection.
But there is another version that I linked to that have a connection for usb programming.

I can clearly see the 4 pin header next to the IC in the pictures.

I found v2.24.0 of the software. Not sure which boards it's meant for. If it's different than what you have and you want to try it, I can give a link.

 

[Nissep]

Me too, that’s why I asked.

 

[irribeo]

Well looking at it there seems support and documentation, which for a chinese diy board feels amazing to me

 

[jaakkopetteri]

I'm playing with the Nvarcher "5.0 DSP Audio Amplifier Tuning Board" and it seems to me that there's a lowpass around 300Hz no matter what I do. Enabling the bass enhancement kinda nullifies it but obviously not the best way to do it. This happens with both outputs. Any ideas?

 

[Nissep]

Got a new filedrop from nvarcher, "DSP 4.1" this time there was a English manual included and the version is upgraded from 2.24.2 to 2.33.0. Hopefully this will work better.

 

[Nissep]

I can confirm that with version 2.33.0 I’m able to deactivate the low pass on the mono output on the 2.1 version, write to memory and unplug the unit, close the program and plug it in again with the program closed and the low pass is still deactivated.
And the same goes for wireless connection.

Success!

 

[irribeo]

Nice!

 

[bonjonno]

Got a new filedrop from nvarcher, "DSP 4.1" this time there was a English manual included and the version is upgraded from 2.24.2 to 2.33.0. Hopefully this will work better.

is there a link to the new ACPWorkbench v 2.33.0 software?

 

[Nissep]

I can post the link provided by nvarcher support, but it won’t work many days. https://wetransfer.com/downloads/c1...N_TDL_01&utm_medium=email&utm_source=sendgrid

 

[bonjonno]

Thanks Nissep! Just want to confirm - you are using it with this nvarcher board?

 

[Nissep]

Yupp

 

[vuki]

Hi Nissep,
could you please upload the sw again?

 

[Nissep]

The download I provided was from nvarcher and I never uploaded it. I can’t really say if I’m allowed to distribute it. But reach out to the seller on AliExpress and they will send it to you.

 

[vuki]

Ok, tnx. Few days ago I ordered that board so I'd ask him when the board arrives.

 

[Rallyfinnen]

These got me a bit curious, but looking at a video of the 'ACP workbench' I can't see any delay settings. Running it in an active speaker as XO, delay would be good for time aligning the drivers.

 

[jaakkopetteri]

There is an option for delay, but only in 1ms increments

 

[Rallyfinnen]

Ok, thank you. Not good enough for time alignment between drivers then.