How do you make a sound louder?

1. Increase the amplitude of the sound waves. This can be done by increasing the power of the sound source, such as by turning up the volume on a speaker or by striking a musical instrument harder.

2. Reduce the distance between the sound source and the listener. The intensity of sound waves decreases with distance, so moving closer to the source will make the sound louder.

3. Reflect sound waves off of a surface. This can help to concentrate the sound waves and make them louder in a particular area. For example, a concave mirror can be used to reflect sound waves and focus them on a specific spot.

4. Use a sound amplifier. An amplifier is a device that increases the amplitude of sound waves. Amplifiers can be used to make a sound louder for a larger audience or to compensate for hearing loss.

5. Use an equalization filter. An equalization filter can be used to adjust the frequency response of a sound, which can make it sound louder or softer at different frequencies.