Closed
Description
CircuitPython version and board name
Adafruit CircuitPython 9.2.6 on 2025-03-23; Raspberry Pi Pico 2 with rp2350a
Board ID:raspberry_pi_pico2
same issue when using Pi Pico rp2040Code/REPL
# sample code and mp3 from https://learn.adafruit.com/mp3-playback-rp2040/pico-i2s-mp3
#
# SPDX-FileCopyrightText: 2021 Kattni Rembor for Adafruit Industries
#
# SPDX-License-Identifier: MIT
"""
CircuitPython I2S MP3 playback example.
Plays a single MP3 once.
"""
import board
import audiomp3
import audiobusio
audio = audiobusio.I2SOut(board.GP0, board.GP1, board.GP2)
mp3 = audiomp3.MP3Decoder(open("slow.mp3", "rb"))
audio.play(mp3)
while audio.playing:
pass
print("Done playing!")Behavior
Audio playback of mp3s are distorted when playing back using a MAX98357A.
Description
Distorted playback also with CircuitPython 9.2.5 on both Pi Pico with rp2040 and Pi Pico 2 rp2350
Additional information
Tried using audiomixer to lower volume since audio sounded like a high gain was applied to it, but that only lowered the volume, the audio was still distorted.
MP3s play fine when using CircuitPython 9.2.4 and earlier.