# PICAR-X speaker not working **URL:** \ **Category:** Robotic kit for Raspberry Pi\ **Created:** [May 24, 2023, 1:08pm UTC](https://forum.sunfounder.com/t/picar-x-speaker-not-working/289 "2023-05-24T13:08:43Z")\ **Posts on this page:** 1\ **Showing post:** 7
**Author:** ![danfagerburg](https://avatars.discourse-cdn.com/v4/letter/d/a88e4f/32.png) [@danfagerburg](https://forum.sunfounder.com/u/danfagerburg)\ **Post date:** [March 16, 2025, 3:20am UTC](https://forum.sunfounder.com/t/picar-x-speaker-not-working/289/7 "2025-03-16T03:20:56Z")
pi@Picar-X:~/picar-x $ sudo bash i2samp.sh Support for your operating system is experimental. Please visit [forums.adafruit.com](http://forums.adafruit.com) if you experience issues with this product. This script will install everything needed to use i2s amplifier — Warning — Always be careful when running scripts and commands copied from the internet. Ensure they are from a trusted source. If you want to see what this script does before running it, you should run: \curl -sS [github.com/adafruit/Raspberry-Pi-Installer-Scripts/i2samp](http://github.com/adafruit/Raspberry-Pi-Installer-Scripts/i2samp) Do you wish to continue? [y/N] y Checking hardware requirements… Adding Device Tree Entry to /boot/firmware/config.txt dtoverlay already active i2s mmap dtoverlay already active Commenting out Blacklist entry in /etc/modprobe.d/raspi-blacklist.conf Reading package lists… Done Building dependency tree… Done Reading state information… Done alsa-utils is already the newest version (1.2.8-1+rpt1). The following packages were automatically installed and are no longer required: libcamera0.3 libwlroots12 lxplug-network Use ‘sudo apt autoremove’ to remove them. 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. Installing aplay systemd unit Removed “/etc/systemd/system/multi-user.target.wants/aplay.service”. You can optionally activate ‘/dev/zero’ playback in the background at boot. This will remove all popping/clicking but does use some processor time. Activate ‘/dev/zero’ playback in background? [RECOMMENDED] [y/N] y Created symlink /etc/systemd/system/multi-user.target.wants/aplay.service → /etc/systemd/system/aplay.service. Configuring sound output card\_num= We can now test your i2s amplifier Set your speakers if possible! Do you wish to test your system now? [y/N] y Testing… speaker-test 1.2.8 Playback device is default Stream parameters are 48000Hz, S16\_LE, 2 channels WAV file(s) Playback open error: -16,Device or resource busy All done! Enjoy your new i2s amplifier! Some changes made to your system require your computer to reboot to take effect. Would you like to reboot now? [y/N] --- _[View the full topic](https://forum.sunfounder.com/t/picar-x-speaker-not-working/289)._