Alternative to DFPlayer Mini

Other Hardware Audio
1

Hi everybody,

I want to build some device which will play sound files in high quality (the final product would be some kind of drumbeat pedal, so 16-bit stereo WAV files would be the minimum requirement). The main processing unit will probably be an Arduino Uno R3, and I saw a lot of projects using it with the DFPlayer mini, but there are some limitations with the DFPlayer, the most important being that I need to be able to play at least 2 soundfiles simultaneously.

I searched for alternatives, found the WAV Trigger (WAV Trigger — Robertsonics) but it seems to be a bit of an overkill a lot pricier than the DFPlayer. Do you know any audio module alternatives to DFPlayer Mini and WAV Trigger which could play 2 to 4 soundfiles simultaneously in high quality?

Thanks in advance for the help!

Stochelo

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Hello, @stochelo. Since you are using uncompressed WAV files, the Arduino Uno R3 should be able to handle it if you just add a suitable DAC to it - maybe a PT8211 and an AD8052 operational amplifier. In my opinion, it could be done by reading the values of the amplitudes from the SD card and 'mixing' them digitally and then feeding them to the DAC and/or summing the two outputs of the DAC if the files are mono. This is just a idea.

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Thanks, this is actually a good idea! I'm also considering using a I2S DAC module, but in any case your answer helped me look in the right direction!

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