2015-10-02 17:31:43 +03:00
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/*
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* Author: Stefan Andritoiu <stefan.andritoiu@intel.com>
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* Copyright (c) 2015 Intel Corporation.
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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2015-10-08 14:30:12 +03:00
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public class MicrophoneSample {
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2015-10-02 17:31:43 +03:00
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public static void main(String[] args) throws InterruptedException {
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2015-10-08 14:30:12 +03:00
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// ! [Interesting]
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2015-10-02 17:31:43 +03:00
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short[] buffer = new short[128];
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2015-10-08 14:30:12 +03:00
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2015-10-02 17:31:43 +03:00
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// Attach microphone to analog port A0
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upm_mic.Microphone sensor = new upm_mic.Microphone(0);
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2015-10-08 14:30:12 +03:00
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2015-10-02 17:31:43 +03:00
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upm_mic.thresholdContext ctx = new upm_mic.thresholdContext();
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ctx.setAverageReading(0);
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ctx.setRunningAverage(0);
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ctx.setAveragedOver(2);
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2015-10-08 14:30:12 +03:00
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2015-10-02 17:31:43 +03:00
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// Repeatedly, take a sample every 2 microseconds;
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// find the average of 128 samples; and
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// print a running graph of the averages
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while (true) {
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int len = sensor.getSampledWindow(2, buffer);
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2015-10-08 14:30:12 +03:00
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if (len != 0) {
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2015-10-02 17:31:43 +03:00
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int thresh = sensor.findThreshold(ctx, 30, buffer);
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sensor.printGraph(ctx);
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2015-10-08 14:30:12 +03:00
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if (thresh != 0) {
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System.out.println("---Threshold reached--- " + ctx.getRunningAverage() + " "
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+ ctx.getAverageReading());
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2015-10-02 17:31:43 +03:00
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}
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}
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}
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2015-10-08 14:30:12 +03:00
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// ! [Interesting]
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2015-10-02 17:31:43 +03:00
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}
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}
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