Hi guys can you recommend me some bluetooth amplifier module?
I got this on amazon ....
But it makes an exaggerated rustle and pops, at low volume the rustle almost covers the music.
Recommendations for modifying this sheet are welcome
thank you
I got this on amazon ....
But it makes an exaggerated rustle and pops, at low volume the rustle almost covers the music.
Recommendations for modifying this sheet are welcome
thank you
Welcome to the forum!
I read that such noise is a common problem with mediocre bluetooth amplifier boards.
I'm supplying a link to information on the module you have pictured in order to give your thread a bump.
https://www.amazon.co.uk/DollaTek-Bluetooth-Amplifier-Recording-Headphones/dp/B07DJ48Y4R/ref=sr_1_19?crid=2KN0EVWVSUY36&keywords=bluetooth+amplifier+module&qid=1661109545&sprefix=bluetooth+amplifier+module,aps,273&sr=8-19
I read that such noise is a common problem with mediocre bluetooth amplifier boards.
I'm supplying a link to information on the module you have pictured in order to give your thread a bump.
https://www.amazon.co.uk/DollaTek-Bluetooth-Amplifier-Recording-Headphones/dp/B07DJ48Y4R/ref=sr_1_19?crid=2KN0EVWVSUY36&keywords=bluetooth+amplifier+module&qid=1661109545&sprefix=bluetooth+amplifier+module,aps,273&sr=8-19
https://www.diyaudio.com/community/...annel-amplifier-with-dsp-and-bluetooth.347637
I have two and like 'em. A little more expensive than the Amazon / Ebay / Alibaba stuff.
I have two and like 'em. A little more expensive than the Amazon / Ebay / Alibaba stuff.
I have a cheapo bt receiver module and suffered the same problem.
I eventually completely cured it by use of an isolated DC-DC converter mounted close to the module's power pins, and sharing no wiring with the signal.
https://www.ebay.co.uk/itm/19363633...uid=hNc7PDPYRJi&widget_ver=artemis&media=COPY
If your budget can't stretch to a Zoudio, then TinySine offer a range of suitable products, some not much more expensive than your ebay special. I use a nimber of them, and I can fully recommend them.
https://www.tinyosshop.com/tinysine-aptx-bluetooth-audio-amplifier-boards?sort=p.price&order=ASC
https://www.tinyosshop.com/tinysine-aptx-bluetooth-audio-amplifier-boards?sort=p.price&order=ASC
I’ve used a dozen or so of these super small, super cheap BT chips called M18. I always isolate their power with a B0505S voltage isolator (or similar). Super inexpensive and lots of functionality!
https://a.co/d/8p4FtO6
HiLetgo 3pcs M18 Wireless Bluetooth MP3 Audio Receiver Board BLT 4.2 mp3 Lossless decoder Bluetooth 4.2 Audio Receiver Board Wireless Stereo Sound Module
https://a.co/d/8p4FtO6
HiLetgo 3pcs M18 Wireless Bluetooth MP3 Audio Receiver Board BLT 4.2 mp3 Lossless decoder Bluetooth 4.2 Audio Receiver Board Wireless Stereo Sound Module
I bought this BT TPA3110 amp module a while back, but haven't used it much beyond confirming that it worked.
https://www.banggood.com/Geekcreit-...ereo-Power-Amplifier-DC-8V-26V-p-1457320.html
It doesn't include a line input option, but it wouldn't be hard to cut the pins linking the BT module to the amp board and add an input.
https://www.banggood.com/Geekcreit-...ereo-Power-Amplifier-DC-8V-26V-p-1457320.html
It doesn't include a line input option, but it wouldn't be hard to cut the pins linking the BT module to the amp board and add an input.