Why does quality or timbre of sound sound different?

A. waveform और overtones के कारण / Due to waveform and overtones

Step 1: Identify the concept: this is characteristics of sound. Step 2: Even with same pitch and loudness different sources can have different waveform so quality differs. Step 3: Remember timbre helps identify sound source.

Step 1: concept पहचानें: यह characteristics of sound है। Step 2: Same pitch और loudness के बावजूद different sources की waveform अलग हो सकती है इसलिए quality अलग लगती है। Step 3: Timbre helps identify sound source याद रखें।