Neha niphadkarneha
🌈
niphadkarneha
/ gist:a674b1b100e3f8250851622940a6c793
Created
February 6, 2019 20:42
— forked from slightfoot/gist:6330866
Android Tone Generator
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| // Usage: | |
| // AudioTrack tone = generateTone(440, 250); | |
| // tone.play(); | |
| // | |
| private AudioTrack generateTone(double freqHz, int durationMs) | |
| { | |
| int count = (int)(44100.0 * 2.0 * (durationMs / 1000.0)) & ~1; | |
| short[] samples = new short[count]; | |
| for(int i = 0; i < count; i += 2){ | |
| short sample = (short)(Math.sin(2 * Math.PI * i / (44100.0 / freqHz)) * 0x7FFF); |