Tuner

A tuner is a device or software that helps adjust the pitch of musical instruments or audio equipment to ensure they produce the correct notes. It detects the frequency of a sound and compares it to the standard pitch (like A4 at 440 Hz). If the sound is flat (below the correct pitch) or sharp (above it), the tuner guides the user to make precise adjustments. Tuners are essential for musicians to achieve accurate tuning, resulting in harmonious and professional-sounding performances.