Displays the deviation of the measured pitch compared to the perfect pitch.
Quick access to transposition, reference tone and temperament.
LED-like indicator and a ring start glowing when the measured pitch meets the in-tune condition, which can be set to your own preference.
Displays the measured pitch on a scale from -50 cent to +50 cent.
A red and yellow wheel starts spinning when the measured pitch is close to the perfect pitch. The slower the wheel spins the better the tuning. The tuner allows you to measure sound with very high precision (around 0.1 cent).
Pressing the fork symbol starts emitting a sine wave tone. The pitch of the tone can be adjusted.
Displays the name of the note that is closest to the measured pitch.
Displays the frequency reading of the measured pitch.
Gives visual feedback of the measured pitch as a tone on a chromatic scale.
Sound Pressure Meter
Indicates the current sound pressure meaning the sound emitted from your instrument plus the sound from the environment.
Sound Pressure Threshold
Moving the knob to the left increases the threshold level, whereas moving it to the right decreases the level. A high threshold value eliminates background noise better.
Two things are of great importance when you tune your instrument.
The sound input has a direct influence on the app's ability to produce an accurate and reliable pitch detection at all times.
The measured tone is displayed based on temperament, reference tone, and transposition.
Sound Pressure Meter
When you tune your instrument play a loud and clear tone on your instrument. The sound pressure reading should exceed the blueish area on the sound level meter in order for the application to process the sound. Adjust the sound pressure threshold to fit your instrument and environmental conditions. Try to lift the sound level of your instrument above the background noise in your environment.
The Info Button in the upper right corner allows you to change temperament, transposition, and reference tone (A4) at any time. First select the relevant category. A popover appears with a list of values to choose from. Pick a value from that list. The changed setting will immediately take effect.
Tuning and pitch estimation depend on the selected temperament. Select the temperament that fits your instrument. Always use Equal Temperament, if you don't know what temperament means.
The A note in the fourth octave, hence A4, is used as a reference point for any tuning. This note is typically set to 440 Hz, but can be set to any value in the interval 400 – 480 Hz.
If your instrument has a natural key different than C, say B flat, you may shift the display two semitones up to compensate for the natural key of you instrument.
In case the measured tone is too low compared to the perfect pitch, the cent meter displays a bar that extends to the left. Furthermore a flat symbol is displayed at the very left-end of the cent meter.
If the measured tone is too high compared to the perfect pitch, the cent meter displays a bar that extends to the right. Furthermore a sharp symbol is displayed at the very right-end of the cent meter.
If the measured tone is almost equal to the perfect pitch, the LED on the cent meter as well as a ring around the pitch detection start glowing. The permitted deviation from the perfect pitch is determined by the in-tune threshold (cf. settings view) that you can set to suit your instrument and playing style.
Sine Wave Tone
The pitch pipe produces a sine wave tone that works with any temperament and is always in perfect pitch.
If you press the fork symbol on the meter you should instantly hear a sine wave tone coming from the app. The app also gives you visual feedback that the pitch pipe is sounding.
The pitch pipe tone is set to A4 by default. You can easily change the tone to any other tone within the range of A0 to C8. Since low tones won't be audible with the built-in speakers, you may use headphones to make the lower range audible.
To change the reference tone, press the pitch note in the middle of the meter for approximately 2 seconds. The background changes and the pitch pipe reference tone
should become visible. Now you can scroll the tone up or down to change octave, or move the finger left or right, to lower or to raise one semitone at a time.
Input level Threshold
Defines the input-level at which the app starts processing sound. A too low level allows for surrounding noise to be included in the sound processing. Find a suitable level that matches your instrument and environment.
Defines the level at which the measured tone of your instrument is said to be in-tune. A value around 2 cent is a good starting point.
Fine Tuning Threshold
Defines the level at which the inner red and yellow wheel starts spinning to allow for high accuracy tuning. A value around 5 cent works generally quite well.
Defines the reference tone for tuning. Most orchestras use 440 Hz for reference.
Defines a naming pattern for flat (♭) and sharp (♯) semitones that appear on the chromatic
circle and elsewhere in the app. Select a scheme that suits you.