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1 | !636 |
2 | !quicknew |
3 | |
4 | import android.media.AudioFormat; |
5 | import android.media.AudioRecord; |
6 | import android.media.MediaRecorder; |
7 | |
8 | main { |
9 | psvm { |
10 | new SoundMeter sm; |
11 | sm.start(); |
12 | for (int i = 0; i < 20; i ++) { |
13 | Thread.sleep(500); |
14 | System.out.println(sm.getAmplitude()); |
15 | } |
16 | sm.stop(); |
17 | } |
18 | } |
19 | |
20 | class SoundMeter { |
21 | |
22 | private AudioRecord ar = null; |
23 | private int minSize; |
24 | |
25 | public void start() { |
26 | minSize= AudioRecord.getMinBufferSize(8000, AudioFormat.CHANNEL_IN_MONO, AudioFormat.ENCODING_PCM_16BIT); |
27 | ar = new AudioRecord(MediaRecorder.AudioSource.MIC, 8000,AudioFormat.CHANNEL_IN_MONO, AudioFormat.ENCODING_PCM_16BIT,minSize); |
28 | ar.startRecording(); |
29 | } |
30 | |
31 | public void stop() { |
32 | if (ar != null) { |
33 | ar.stop(); |
34 | } |
35 | } |
36 | |
37 | public double getAmplitude() { |
38 | short[] buffer = new short[minSize]; |
39 | ar.read(buffer, 0, minSize); |
40 | int max = 0; |
41 | for (short s : buffer) |
42 | { |
43 | if (Math.abs(s) > max) |
44 | { |
45 | max = Math.abs(s); |
46 | } |
47 | } |
48 | return max; |
49 | } |
50 | |
51 | } |
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Snippet ID: | #1000439 |
Snippet name: | Sound meter |
Eternal ID of this version: | #1000439/1 |
Text MD5: | 9e5b0659ec3fdad2dca4fbb77bf10fe5 |
Transpilation MD5: | 2d4c0c56aaa8d69d31936c0b0ab089ef |
Author: | stefan |
Category: | javax android |
Type: | JavaX source code (Android) |
Public (visible to everyone): | Yes |
Archived (hidden from active list): | No |
Created/modified: | 2015-08-06 03:25:05 |
Source code size: | 1154 bytes / 51 lines |
Pitched / IR pitched: | No / Yes |
Views / Downloads: | 578 / 538 |
Referenced in: | [show references] |