get Sample Audio Rate - Android Media

Android examples for Media:Audio

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Description

get Sample Audio Rate

Demo Code

/*//from ww  w . ja va 2s. com
 * Copyright 2016 chRyNaN
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *  http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
//package com.java2s;
import android.media.AudioFormat;
import android.media.AudioRecord;

public class Main {
    public static final int[] POSSIBLE_SAMPLE_RATES = new int[] { 8000,
            11025, 16000, 22050, 32000, 37800, 44056, 44100, 47250, 48000 };

    public static final int getSampleRate(boolean lowest) {
        int sampleRate = -1;
        for (int rate : POSSIBLE_SAMPLE_RATES) {
            int bufferSize = AudioRecord.getMinBufferSize(rate,
                    AudioFormat.CHANNEL_IN_DEFAULT,
                    AudioFormat.ENCODING_PCM_16BIT);
            if (bufferSize > 0) {
                // buffer size is valid, Sample rate supported
                sampleRate = rate;
                if (lowest) {
                    return sampleRate;
                }
            }
        }
        return sampleRate;
    }

    public static final int getSampleRate() {
        return getSampleRate(false);
    }
}

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