Metronoamee

App Overview

This application plays an instrument while listening to the metronome click sound from the terminal, and samples the sound to calculate and display in real time whether the timing is correct or not.

Since you can see if the timing is correct while playing, it helps you easily correct your sense of timing and play in better rhythm.

Instrument Configuration of the App

Although this application samples, computes and displays the sound of the instrument played, we strongly recommend that performers listen to the metronome sound using earphones/headphones so that the metronome sound emitted by the device is not sampled as the sound of the instrument you played.

Also, to reduce time lag, please use earphones with a wired connection or an audio interface as much as possible.

Note that an audio interface with multiple channels will always use the first channel as input.

Overview of the main screen

After the title screen appears when the application is launched, the main screen appears.

Pressing the metronome start/stop button at the bottom center of the screen starts/stops the metronome operation.

A click sound is made and a timeline is displayed at the top of the screen showing when the instrument is about to play a sound, the waveform of the sound played, and whether the timing is correct.

The metronome tempo, number of beats, and sound on/off can be controlled with the metronome control in the middle of the screen.

Although some metronome controls are omitted when displaying camera images, all settings can be made by displaying the metronome setting screen from the buttons at the bottom of the screen.

This application is basically offered as a paid application, but it can be downloaded free of charge and can be used for 15 seconds at a time.

Point Display

The point display includes

Points: A score indicating how well the note fits the rhythm and a message depending on whether the note was pronounced at the right or wrong time.

Attack (start of sound): a graph showing the variation of the start of sound and Release (stop of sound): a graph showing the variation of the stop of sound.

Attack (start of pronunciation): a graph showing the variation in the start of pronunciation

Translated with DeepL.com (free version)

In-camera display

Tap the camera icon at the bottom of the screen to display the in-camera image.

You can practice by watching your playing form, one of the most important aspects of playing an instrument.

Screen Recording

Tap the recording icon at the bottom of the screen to record the app screen as a video.

The recorded video will be saved to the camera roll, allowing you to look back on your practice later.

Metronome Settings

Tap the metronome setting icon at the bottom of the screen to make offsetting metronome settings.

You can also set the metronome click tone and velocity.

System Settings

Input Monitor Gain

The volume of the input sound when inputting the sound of an external instrument such as an electric guitar or electric bass using an audio interface, etc., so that the performer can listen to the input sound and the metronome click sound at the same time through earphones/headphones.

When inputting the sound of an acoustic instrument through the device's built-in microphone and listening to the click sound through the built-in speaker, be sure to set the value to 0. This may cause feedback.

Input Processing Gain

The volume at which the input sound is processed internally.

Use this parameter when the sound waveform is too small or too loud in the timeline display.

Input Processing Noise Gate Level

Use this to increase the volume when the noise of the input sound is loud.

Input Processing Note Threshold

Sets the value of which level or higher of the input sound is considered “pronounced” when it is input.

Metronome Output Gain

Sets the metronome output volume.

Sampling Buffer Length

Sets the length of the buffer sampled and processed by the audio processing engine.

A smaller value means a smaller buffer and better responsiveness, but it may increase the load on the device and prevent it from processing audio properly. In such cases, increase this setting value.