On the effects is only "2" and "4" the 4 is for the subwoofer, and 2 is for stereo i think(2 and 4 from the total of the 4 outputs of the chip in theory)
I need separate efects for each channels! Not only the "2 " output, otherwise is useless, what to do? 🙁
I need separate efects for each channels! Not only the "2 " output, otherwise is useless, what to do? 🙁
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Do you mean this thing: https://www.aliexpress.com/i/3256805900869984.html?gatewayAdapt=4itemAdapt
If so, there is a schematic for what looks like part of it at: https://www.aliexpress.com/i/3256804589587740.html
And there is a datasheet on another part of it at: https://www.ti.com/product/TPA3116D2
Basically, you need to look at what you have there, and more or less reverse engineer it to figure out how to make it work.
Also, if you ask the seller for a schematic sometimes they will can get one for you, other times not. Usually worth a try.
Also, maybe some info on programming the BT module at: https://www.ti.com/product/TPA3116D2
Or, maybe this: https://www.arylic.com/products/acp...smSnofH-Iqp7U_PCmZ9MG4MXAgAO9320GCwfZwOIH2f10
If so, there is a schematic for what looks like part of it at: https://www.aliexpress.com/i/3256804589587740.html
And there is a datasheet on another part of it at: https://www.ti.com/product/TPA3116D2
Basically, you need to look at what you have there, and more or less reverse engineer it to figure out how to make it work.
Also, if you ask the seller for a schematic sometimes they will can get one for you, other times not. Usually worth a try.
Also, maybe some info on programming the BT module at: https://www.ti.com/product/TPA3116D2
Or, maybe this: https://www.arylic.com/products/acp...smSnofH-Iqp7U_PCmZ9MG4MXAgAO9320GCwfZwOIH2f10
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I believe you are using ACP workbench. There is mostly 2 firmware. One is for stereo out - and the equalizers and effects work commonly for both channels. In the other firmware we can separate the channels and use for a 2 way active system , for eg - that is 1 equalizer on Left channel - Lo Pass ; and 1 equalizer on R channel high pass. I doubt 2.1 can be achieved with this IC , I maybe wrong - if you do manage 2.1 output - please post here that we are updated.
It's a shame the Chinese make this decent chip and put it on dozens of amplifier boards or Bluetooth modules and give you ACPworkbench software with it but there's little to no documentation or instructions on it! Im going through an issue now with a Wondom tpa3255 board that uses the bp1048b2 chip as well.
The manufacturing runs of the DSPs will be in 1000s if not millions - and with most innovation and manufacturing that can absorb - this large scale production being out of China, there may not be much reason to have good documentation and support for DIY and an odd manufacturer - out in the world somewhere - that may consume a few hundred dsp's in English.
They have their end to end solution with along with the App that they offer for white labelling.
I think those that have a good requirement - will not manufacture themselves - will take a flight to China - get their product made , have a holiday and amazing shopping - and yet have money to spare - than the headache to make it themselves - they will receive is a ready made tailored solution to sell at 20x.
https://go-radio.ru/files/datasheet/MVSilicon_BP1048B2_ENG.pdf
Found this datasheet about 20 minutes after posting. It's not much but more info than I've seen anywhere else. I'd like to know more about ACPworkbench the help pdf with it is very general and vague. The videos on YouTube breeze right through the 2 or 3 things they show you. I just had a heck of a time fixing the gain stages of the chip through ACP workbench. I don't know what happend but one day I started hearing a lot of raspy sounds with every word that was spoken on the TV. I was able to adjust the 3 or 4 different volume and gain settings and get it back clean sounding again. The wondom bdm8 is my 3rd tpa3255 the first 2 were horrible failures but the bdm8 is impressively loud and clean sounding uaing aux input or bluetooth. I'll definitely be trying more products from the wondom store on AliExpress. For what you pay you get a lot and it's better quality than all the other brands I've tried. Shipping from china to Maryland is 7-10 days too for free!
Found this datasheet about 20 minutes after posting. It's not much but more info than I've seen anywhere else. I'd like to know more about ACPworkbench the help pdf with it is very general and vague. The videos on YouTube breeze right through the 2 or 3 things they show you. I just had a heck of a time fixing the gain stages of the chip through ACP workbench. I don't know what happend but one day I started hearing a lot of raspy sounds with every word that was spoken on the TV. I was able to adjust the 3 or 4 different volume and gain settings and get it back clean sounding again. The wondom bdm8 is my 3rd tpa3255 the first 2 were horrible failures but the bdm8 is impressively loud and clean sounding uaing aux input or bluetooth. I'll definitely be trying more products from the wondom store on AliExpress. For what you pay you get a lot and it's better quality than all the other brands I've tried. Shipping from china to Maryland is 7-10 days too for free!
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Hi Kyleag, Ive faced this issue too, mostly took place when the board was connected to ACP workbench and I was setting the eq to get a flat response. The solution was to remove the the signal feed from laptop and supply some feed directly to the input - in this case i just used my hand to feed it some grid noise - and it cleared up.
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I am now looking for a Linkplay pcb as input - to stream, ADAU 1452 for processing and any decent D/A converter - all in one board solution.
I agree with you Wondom is good they have the following with ADAU 1701 , wish they had with 1452. Or if any one here makes one with 1452.
https://www.aliexpress.com/item/100...3e4100!12000034681998126!ct!BR!137474716!!1!0
https://www.aliexpress.com/item/100...4e4100!12000025185933200!ct!BR!137474716!!1!0
One person that can make is - uriy-ch as he has made this, but he has used esp32 as input streaming n that is not as smooth as using the 4stream app & Linkplay boards setup.
Another issue with ADAU is the programmer - why could they have not made it as simple as it is work with the solutions coming out of China. Plug n play USB.
I agree with you Wondom is good they have the following with ADAU 1701 , wish they had with 1452. Or if any one here makes one with 1452.
https://www.aliexpress.com/item/100...3e4100!12000034681998126!ct!BR!137474716!!1!0
https://www.aliexpress.com/item/100...4e4100!12000025185933200!ct!BR!137474716!!1!0
One person that can make is - uriy-ch as he has made this, but he has used esp32 as input streaming n that is not as smooth as using the 4stream app & Linkplay boards setup.
Another issue with ADAU is the programmer - why could they have not made it as simple as it is work with the solutions coming out of China. Plug n play USB.
I'm not sure what you mean exactly. Do you mean while the bp1048b2 was hooked up to your laptop you got strange results? I'm using a USB to 4 pin header male plug cable I made to hook the chip to my laptop and feeding audio into the amplifier using RCA's that are wired to the BDM8's Bluetooth input ports. The BDM8 comes with the option to use AUX input or there's a header that shares AUX input with Bluetooth input. It comes with a jumper installed between the "KEY" pin and the right channel input to activate Bluetooth input. I have a switch that replaces this jumper so I can change between Bluetooth and RCA inputs. A problem I have often is getting the chip to switch back from Bluetooth to AUX input. When the jumper is removed from Bluetooth KEY pin its supposed to default to AUX input but it doesn't always work correctly and I have to power cycle the amp a few times. I honestly dont know how I get it to work again I may be doing something else to activate it that I don't realize. Is that the problem you had?
I actually have this from Wondom along with the newest programmer. It was the first product I purchased from them awhile back. I agree with you on the programmer not being integrated is very dumb in my opinion as there is plenty of space to fit it inside the enclosure. I haven't been able to do much with it other than change the program to a 2.1 set-up using simple filters because SIgma Studio is a steep learning curve for me! Sigma Studio was made for electrical engineers and I am far from one of them! I actually had a 3.3v voltage regulator go bad on mine recently and the board still powered on and you could program it but there was no audio output. That took me awhile to diagnose because I thought it had something to do with my programming rather than an actual hardware issue! It was the regulator that fed power to the digital volume control chip I a PT2259.
Why do you prefer the 1452 over the 1701? I thought the 1701 was the newer better DSP?
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Sorry to bombard you with so many questions but its hard to find an english speaking person familiar with these products. Do you know how to get the firmware and download it to the BP1048b2?
That's how I have mine set-up for now. I use it in my bedroom with 2 bookshelf speakers powered with a TDA7498E and an 8" subwoofer I made with a 150w plate amp. The 50-200HZ HPF is for the stereo channels going to the TDA7498E and the LPF/HPF is for the Subwoofer channels(2).
Hi , I amusing this module and the DSP is BP1048
https://www.arylic.com/products/up2...PlAHuq_e81Vz7Lu6FmHoG9AHSZ8aTdMQKQ7U36QAoMn0z
Oh ok I was wrongly assuming you were talking about the same board I have the bdm8. I think the audio switching and static issues only pertain to the bdm8 and the implementation of the bo1048 2. So what issue did you have with your Acrylic board?
I got support from Arylic. I have bought several modules , I have encountered 2 firmware for the DSP using ACP work bench.
Firmware - 1 , L & R each have a 10 band Eq & 1 Master input EQ > in this L can be set to Hi - Pass & R to Lo Pass - and one module can be used to make an 2 way active speaker.
Firmware - 2 , L & R did not have individual 10 band eq, there was one Master input EQ for both L & R <> and a bunch of effects.
I needed the Module with Firmware 2 to be flashed with Firmware 1 , I was helped by Arylic to do this - they provided me guidance to update the firmware using the 4 Stream App.
Ok I have the 2nd firmware but I don't really need to seperate the channels for what I use it for. I was just curious if it would be possible to change the firmware for future projects. I'll ask wondom if they have and can send me the other firmware. They have been one of the only sellers on AliExpress to give any actual answers and help from my experiences of what I've bought.
