Start Audacity.

Set the volume of your audio interface and speakers to a safe level.

Choose File → Open to open the Open File window.

Open the /usr/share/sounds/alsa/Noise.wav file. This file is designed for testing audio equipment.

Play the file as many times as you need. Adjust the volume of your audio interface and speakers while the file is playing.

If you cannot hear sound when the file is played, check that your audio interface and speakers are correctly connected and powered on.

If you still cannot hear sound when the file is played, see Section 5.3.2, “Configure Audacity for Your Sound Card”.