Pitch is an auditory sensation in which a listener assigns musical tones to relative positions on a musical scale based primarily on their perception of the frequency of vibration (from Wikipedia). There are different pitch definitions, for instance:
The following table lists different base frequencies, notes/scores, and the reference A4 frequency (source: Attuned Vibrations):
Frequency | A4 |
---|---|
174 Hz (F3) | 438.48 Hz |
285 Hz (C#4) | 452.37 Hz |
396 Hz (G4) | 444.34 Hz |
417 Hz (G#4) | 441.78 Hz |
432 Hz (A4) | 432 Hz |
440 Hz (A4) | 440 Hz |
528 Hz (C5) | 444 Hz |
639 Hz (D#5) | 451.84 Hz |
741 Hz (F#5) | 440.60 Hz |
852 Hz (G#5) | 451.33 Hz |
963 Hz (B5) | 428.96 Hz |
If you want to convert multiple files or change the frequency in realtime during playback then offline applications might be more suitable than this online tool. The Music Speed Changer app is extremely useful for practicing because it can change the pitch in realtime while playing. The 432Hz app on the other hand can be used for converting batches of music files.