DFPlayer Distorted Sound

Using Arduino Audio
#1

Im working on a simple MP3 player for a relative, using an arduino uno and a DFplayer mini.
The wiring is simple enough, but whatever it try the sound is simply distorted. The only suggested fix i have found is the power the DFplayer with its own 5v power, which i have tried with no difference. I have another df board on order, but i was wondering if anyone has had the same issue?

p.s this is not a digital noise issue, i have 1k resistors on the TX/RX lines which has cleaned that up.

Thanks in advance.

#2

Does the same MP3 (or WAV) sound OK on the computer?

Maybe the volume is turned-up too much? Is it related to volume? Boosting with EQ can also cause distortion.

Are you sure the speaker is OK?

#3

the files play fine on any other machine, and ive tried a few speakers. hopefully its just a faulty board and im not missing something obvious.

#4

Hello, @oliclarke, are the speakers you are using >= 3W? Or do you not know? Are the speakers 8 ohms? If not then I suggest you buy some new speakers. I had the same problem and the way I solved the problem was by checking to see if the speaker was 8 ohms and < 3W (NOT EQUAL TO!). What I think happened is that you fried your MP3 player, I did the same as well, so that means you’ll have to use lower wattage speakers, along with low ohms, so no heat dissipates. I have a link so you can buy some speakers if you did burn your MP3 player (not sure how big you want the speaker) and they’re 1W 8ohm:

Aliexpress:

Aliexpress 5pc Speakers

Amazon:

Amazon 4pc Speakers

Ebay:

Ebay 2pc Speakers

#5