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FM Tutorial 1.5

453.2 KB / 10K+ Downloads / Rating 3.3 - 40 reviews


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FM Tutorial, developed and published by Frequent Mind, has released its latest version, 1.5, on 2024-11-02. This app falls under the Music & Audio category on the Google Play Store and has achieved over 10000 installs. It currently holds an overall rating of 3.3, based on 40 reviews.

FM Tutorial APK available on this page is compatible with all Android devices that meet the required specifications (Android 5.0+). It can also be installed on PC and Mac using an Android emulator such as Bluestacks, LDPlayer, and others.

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App Screenshot

App Screenshot

App Details

Package name: com.frequentmind.fmtutorial

Updated: 3 months ago

Developer Name: Frequent Mind

Category: Music & Audio

New features: Show more

Installation Instructions

This article outlines two straightforward methods for installing FM Tutorial on PC Windows and Mac.

Using BlueStacks

  1. Download the APK/XAPK file from this page.
  2. Install BlueStacks by visiting http://bluestacks.com.
  3. Open the APK/XAPK file by double-clicking it. This action will launch BlueStacks and begin the application's installation. If the APK file does not automatically open with BlueStacks, right-click on it and select 'Open with...', then navigate to BlueStacks. Alternatively, you can drag-and-drop the APK file onto the BlueStacks home screen.
  4. Wait a few seconds for the installation to complete. Once done, the installed app will appear on the BlueStacks home screen. Click its icon to start using the application.

Using LDPlayer

  1. Download and install LDPlayer from https://www.ldplayer.net.
  2. Drag the APK/XAPK file directly into LDPlayer.

If you have any questions, please don't hesitate to contact us.

App Rating

3.3
Total 40 reviews

Reviews

4 ★, on 2018-10-26
Simple enough to demonstrate how 2op FM works.

1 ★, on 2014-10-28
This app teaches almost nothing about FM synthesis; I'm very confused at what the Dev meant to achieve here.

4 ★, on 2013-04-28
Plz add some thery material to understand the fm properly As lai ppl wil nt understand this

3 ★, on 2012-08-07
Plz come with amplitude modulation

5 ★, on 2013-04-15
Excellent app.

5 ★, on 2013-04-21
Nice app with good features..!!!

Previous Versions

FM Tutorial 1.5
2024-11-02 / 453.2 KB / Android 5.0+

FM Tutorial 1.2
2016-01-06 / 89.6 KB / Android 2.2+

About this app

This app demonstrates how frequency modulation (FM) is used in FM synthesizers to generate sounds.
The app plays the FM sound, displays the carrier, modulator and resulting modulated wave as well as the power spectrum and the real and imaginary parts of the spectrum.
Sound and display are changed in real-time as the user modifies the following parameters.

Modulation Index (Beta):
"Depth" of modulation. The larger this value the more the carrier wave gets "warped"
and the more harmonics appear in the spectrum

Carrier Phase (Phi):
Shifting the phase of the carrier against the modulator changes the form of the
modulated wave and the spectrum.

Carrier and modulator frequencies: These can also be altered.

A Help button (?) for a brief description of the buttons and a more detailed Help in the Menu are available.

The More button (upside down triangle) lets you toggle through the various parameter settings.

Switch additional spectra (real and imaginary) on and off by up and down fling on the screen.
Zoom in/out by right/left fling across waves or spectrum (they zoom independently).

FM synthesis explained:
In a nutshell, FM synthesis works by changing the frequency of a sound wave (carrier) in accordance with the current value of a second wave, the modulating wave (modulator). If carrier and modulator have the same frequency then the increase and decrease of the carrier wave's frequency takes place within the space of one period of the wave. The result is that the shape of the wave is changed while the
period stays the same. If the un-modulated carrier is a sine wave then the modulated will be deformed into something different. This means the spectrum gets additional harmonics, i.e. the sound changes and becomes richer.
A similar effect occurs when carrier and modulator frequencies form small integer ratios.

FAQ:
Q: Why does the wave change faster/slower when LFO and/or Detune are ON and I toggle speaker ON/OFF (using the button in the app)?
A: When the speaker is OFF then the speed with which the display changes can vary between devices, depending on how fast the number crunching is performed.

New features

Important bug fix.