Increase sampling rate How the duration and pitch of the signal changed?

Increasing the sampling rate of a signal allows for more data points to be captured over the same duration, improving the fidelity of the representation. However, the duration of the signal remains unchanged, as it is determined by the original signal's length. The pitch of the signal does not change directly with an increased sampling rate; instead, it allows for a more accurate reproduction of the original pitch without introducing artifacts like aliasing. Thus, while the sampling rate enhances the quality of the signal, it does not alter its duration or pitch.