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THE SUMFIZZ LIBRARY

Music and sound production calculators

Explore 15 free tools for music and sound production. Find speaker delay alignment, stereo sample delay width, microphone spacing time difference and more. Each calculator explains its inputs and method, with examples you can try using your own numbers.

THE SUMFIZZ LIBRARY

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15 calculators

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Speaker delay alignment

Delay the nearer source by the extra travel time of the farther source.

Music and sound production

Stereo sample delay width

Comb frequencies apply when equal-level, same-polarity original and delayed signals are summed.

Music and sound production

Microphone spacing time difference

Far-field plane-wave geometry.

Music and sound production

Compressor ratio output

Static hard-knee transfer curve with ratio at least 1:1.

Music and sound production

True peak headroom planner

Adds linear gain in decibels to an externally measured true peak.

Music and sound production

Musical note frequency

12-tone equal temperament only; reference_hz is the frequency of MIDI note 69 (A4).

Music and sound production

Musical interval cents

Signed interval: positive when to_hz is above from_hz, negative when below.

Music and sound production

Tempo practice progression

Stages run start, start+step, ...

Music and sound production

Song duration from bars

Three non-empty equal-length numeric arrays with at most 1000 entries; bars >= 0, beats_per_bar and bpm > 0.

Music and sound production

Beat subdivision duration

events_per_beat is an explicit equal subdivision or tuplet count relative to the BPM beat unit; it need not be an integer.

Music and sound production

Polyrhythm alignment

left and right are positive integers up to 1000.

Music and sound production

Swing timing planner

One long-short pair occupies exactly one BPM beat; the long:short ratio need not be normalized (2:1 is triplet swing, 3:1 is a heavier swing).

Music and sound production

Tap tempo estimator

Raw tap intervals: 3-1000 strictly increasing finite timestamps; all consecutive intervals are used with no outlier removal.

Music and sound production

Fret position calculator

12-tone equal temperament, ideal fret geometry only (no compensation, camber, string stiffness or action).

Music and sound production

String tension estimate

Ideal uniform flexible string under tension (Mersenne's law); not a safety or instrument setup recommendation.

Music and sound production