iPhone app True Tone

True Tone plays any tone defined by a temperament.
True Tone is useful in tuning instruments, or improving intonation of your instrument.

The operation is simple, just swipe your finger to select a tone and press the fork symbol and instantly you will hear a continuous tone sounding.

Feature highlights

Range of tone approximately A0 - C8

High accuracy of tone synthesis

Common waveforms other than sine waves available

Several display patterns for accidentals

Transposition possible for instruments with natural key other than C

Adjustable reference tone A4 in the range 400 - 480 Hz

Preset temperament collection available,

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