java 实现wav头信息生成byts数组

最新推荐文章于 2024-09-16 10:44:15 发布

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本文介绍了一种使用Java生成WAV文件头的方法。通过指定音频长度、采样率、声道数及位深等参数，构造了WAV文件头所需的字节流。此方法适用于音频处理或生成WAV格式音频文件的场景。

java 实现wav头信息生成byts数组

 public WavHeader(long totalAudioLen, int longSampleRate, int channels, int SamplesBits){
            if(SamplesBits == AudioFormat.ENCODING_PCM_16BIT)
                this.SamplesBits = 16;
            else if(SamplesBits == AudioFormat.ENCODING_PCM_8BIT)
                this.SamplesBits = 8;

            if(channels == AudioFormat.CHANNEL_IN_STEREO )
                this.channels = 2;
            else
                this.channels = 1;
            this.totalAudioLen = (int)totalAudioLen;

            ByteArrayBuilder byteArrayBuilder = new ByteArrayBuilder();
            byteArrayBuilder.write("RIFF".getBytes());
            byteArrayBuilder.write(intToByteArray((int) (totalAudioLen + 44)));
            byteArrayBuilder.write("WAVE".getBytes());
            byteArrayBuilder.write("fmt ".getBytes());
            byteArrayBuilder.write(intToByteArray(this.SamplesBits));
            byteArrayBuilder.write(charToByteArray((char)1));
            byteArrayBuilder.write(charToByteArray((char)this.channels));
            byteArrayBuilder.write(intToByteArray(longSampleRate));
            byteArrayBuilder.write(intToByteArray(longSampleRate * channels * (this.SamplesBits/8)));
            byteArrayBuilder.write(charToByteArray((char)(channels*(this.SamplesBits/8))));
            byteArrayBuilder.write( charToByteArray((char)this.SamplesBits));
            byteArrayBuilder.write("data".getBytes());
            byteArrayBuilder.write(intToByteArray((int) totalAudioLen));
            bytes = byteArrayBuilder.toByteArray();
        };