A440 (also known as Stuttgart pitch [1]) is the musical pitch corresponding to an audio frequency of 440 Hz, which serves as a tuning standard for the musical note of A above middle C, or A 4 …

Reference chart for musical notes and their frequencies in Hz (hertz). The reference tone is A4, at 440 Hz. A simple way to get the pitch of different notes.

With the Frequency to Pitch Calculator, you can improve your songs by tuning your audio to the right note to easily maintain the harmony of your tracks.

Jan 30, 2025 · A440 (A=440 Hz), also known as "concert pitch," "Stuttgart pitch," "Scheibler pitch," "pitch standard," or "modern performance practice" is the standard tuning used in most …

This is a list of the fundamental frequencies in hertz (cycles per second) of the keys of a modern 88-key standard or 108-key extended piano in twelve-tone equal temperament, with the 49th …

The current international pitch standard, using A 4 as exactly 440 Hz, had been informally adopted by the music industry as far back as 1926, and A440 became the official international …

May 12, 2010 · A440 (sometimes called A4) is the 440 Hz tone that serves as the internationally recognized standard for musical pitch. A440 is the musical note A above middle C. NIST has …

The pitch A4 or ``A440'' is often used as a reference, and is an A at 440 Hz. What is the frequency one octave below A440? In equal-tempered tuning, there are 12 evenly spaced tones in an …

Jun 8, 2004 · This is sometimes referred to as “concert pitch.” Following the principles of equal temperament, A440 means that the C above it has a frequency of approximately 523.3Hz. A …

Below is a table of pitch frequencies in equal temperament, based on A4 = 440 Hz to the nearest Hertz (middle C = C4). Pitch, Temperament and Timbre by Brian Blood.