Difference between pitch and frequency?
2 vues (au cours des 30 derniers jours)
Afficher commentaires plus anciens
What is the difference between pitch and frequency? I would be happy if you give me some examples too.
0 commentaires
Réponse acceptée
Daniel Shub
le 27 Oct 2011
Frequency is a physical aspect of a sound and can be measured objectively (for example with a microphone and an oscilloscope). Pitch is a percept of a sound and can only be measured subjectively; often you ask people to adjust one sound so that its pitch is the same/double/half the pitch of a reference sound.
Generally, the perceived pitch is proportional to the "frequency." This is not always true. For example, the perceived pitch tends to change slightly as the loudness/intensity of the sound increases. It is also difficult to define frequency for complex sounds. For pure tones, sin(2pift), the frequency is unambitious, for all other sounds it is more complicated since there is not a single frequency.
The pitch of a harmonic complex sum(sin(2pif0t*i)) where integer i goes from n to m is related to f0 and not nf0 or mf0. In other words, the pitch of a harmonic tone complex is related to its fundamental frequency (even when that frequency is absent) and not its highest (mf0) or lowest (nf0) frequency. When f0 is absent, this is often referred to as the "missing fundamental".
Other pitches, for example Huggins pitch, are even more complicated to describe the "frequency".
1 commentaire
Plus de réponses (0)
Voir également
Catégories
En savoir plus sur Measurements and Spatial Audio dans Help Center et File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!