CircuitPython School - Playing Sound (wav or mp3) with PyGame on a Raspberry Pi 

So glad you are enjoying this. Shoot me an address over email if you’d like a “Make Something Awesome!” Sticker.

Glad it helped, Ava! Keep hacking!

The speaker-test works fine for me. When I attempt to play a .wav, .mp3 or .m4a audio file, I only hear white noise and get message "Playing raw data 'audiofilename.wav' : Unsigned 8 bit, Rate 8000 Hz, Mono. I'm using a Raspberry Pi 4 with Raspberry Pi OS and using bluetooth for my Google Home Mini.

I had that happen. I realized I was playing an mp3 file. aplay was playing it as a wav.

Check out the video on bit.ly/raspberry-pi-tutorials on “The Right Away to Add Buttons”. You can then trigger a sound with each button press. If you’re new to CircuitPython also check out the CircuitPython School playlist on my channel. It’s where my students start. Cheers!

Check out the DJ board video ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-1FAYy1hrcGc.html

Hi. If you are using a Pico you won’t use PyGame. Check out the CircuitPython playlist. There are lots of sound tutorials there and you can use CircuitPython with the Pico. See bit.ly/circuitpython-tutorials.

Check out the playlist: bit.ly/circuitpython-tutorials and look for Lesson 18 - Random Numbers. This will show you how to generate random values. You can put the names of your sounds in a list & get a random element from that list and play that element. For a delay of a random amount, you can generate a random value in a range of the # of seconds (or fractions of a second) you want to wait, and use a time.sleep(random_seconds_value) in between getting & playing random sounds. Hope that helps!

@@profgallaugher Great. Thank you so much!

Try ‘em out, homie!

No idea. Perhaps someone on the Adafruit Discord channel has some suggestions.

"NameError ... is not defined" means you're referring to a variable (in your case one named "speaker") that has not been created. If you look hard at the code you'll see that the variable is named "speaker_volume", not "speaker". So if you refer to "speaker" before it has been created & has anything inside it, your program thinks this is a made-up word like flitzblaubgasdf. When you assign a variable a value you define it, or give it a definition. If I tell you flitzblaubgasdf = "林冠廷 is a code god", then I have just defined that variable and you'll know what flitzblaubgasdf is. Check your code & make sure your "speaker" is called "speaker_volume" in all places. Also: Sometimes this will show up if you refer to a value that should be part of an imported library (not the case here). That's another thing to double check. Good luck!

@@profgallaugher I have solved the problem, thanks for your reply!!!