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用于操作 wav 文件的简单 PHP 库

安装

使用 composer 安装 composer require nkolosov/wav

#使用方法 简单使用

    ...
    $file = Parser::fromFile('/path/to/file.wav');
    echo $file->getSampleRate(); //44100
    ...

您可以从代码中创建音乐文件

    ...
    $sampleBuilder = new Piano(); //create piano sound generator

    //generate first notes of Für Elise (Ludwig van Beethoven)
    $samples = [
            $sampleBuilder->note('E', 5, 0.3),
            $sampleBuilder->note('D#', 5, 0.3),
            $sampleBuilder->note('E', 5, 0.3),
            $sampleBuilder->note('D#', 5, 0.3),
            $sampleBuilder->note('E', 5, 0.3),
            $sampleBuilder->note('H', 4, 0.3),
            $sampleBuilder->note('D', 5, 0.3),
            $sampleBuilder->note('C', 5, 0.3),
            $sampleBuilder->note('A', 4, 1),
    ];

    $builder = (new Builder())
         ->setAudioFormat(\Wav\WaveFormat::PCM)
         ->setNumberOfChannels(1)
         ->setSampleRate(\Wav\Builder::DEFAULT_SAMPLE_RATE)
         ->setByteRate(\Wav\Builder::DEFAULT_SAMPLE_RATE * 1 * 16 / 8)
         ->setBlockAlign(1 * 16 / 8)
         ->setBitsPerSample(16)
         ->setSamples($samples);

    $audio = $builder->build();
    $audio->returnContent(); //return wav-file content directly to browser/console
    ...