导出音频

在导入声波后，您可能希望将其导出到内存或文件。该插件提供了导出音频的功能，支持多种格式，并可选择覆盖采样率（重采样）和通道数（混音）。

支持的音频格式

该插件支持导出以下音频格式：

• WAV - Waveform Audio File Format（波形音频文件格式）
• OGG VORBIS - Ogg 容器，包含 Vorbis 音频
• OGG OPUS - Ogg 容器，包含 Opus 音频
• BINK - Bink Audio（仅适用于 Windows x64、Mac 和 Linux，UE >= 5.0）
• RAW (PCM) - 未压缩的脉冲编码调制（Pulse-Code Modulation）音频数据（Int8、UInt8、Int16、UInt16、Int32、UInt32、Float32）

示例

Blueprint

C++

// Assuming ImportedSoundWave is a UE reference to a UImportedSoundWave object (or its derived type, such as UStreamingSoundWave, UCapturableSoundWave, etc.)

// Export the sound wave to a file
URuntimeAudioExporter::ExportSoundWaveToFile(ImportedSoundWave, TEXT("C:/ExportedAudio.ogg"), ERuntimeAudioFormat::OggVorbis, 100,
    FRuntimeAudioExportOverrideOptions(),
    FOnAudioExportToFileResultNative::CreateWeakLambda(this, [this](bool bSucceeded)
    {
	    // Handle the result
    }));

// Export the sound wave to a RAW file
URuntimeAudioExporter::ExportSoundWaveToRAWFile(ImportedSoundWave, TEXT("C:/ExportedAudio.raw"), ERuntimeRAWAudioFormat::UInt16,
    FRuntimeAudioExportOverrideOptions(),
    FOnAudioExportToFileResultNative::CreateWeakLambda(this, [this](bool bSucceeded)
    {
	    // Handle the result
    }));

// Export the sound wave to a buffer
URuntimeAudioExporter::ExportSoundWaveToBuffer(ImportedSoundWave, ERuntimeAudioFormat::Wav, 100,
    FRuntimeAudioExportOverrideOptions(),
    FOnAudioExportToBufferResultNative::CreateWeakLambda(this, [this](bool bSucceeded, const TArray64<uint8>& AudioData)
    {
	    // Handle the result
    }));

// Export the sound wave to a RAW buffer
URuntimeAudioExporter::ExportSoundWaveToRAWBuffer(ImportedSoundWave, ERuntimeRAWAudioFormat::Float32,
    FRuntimeAudioExportOverrideOptions(),
    FOnAudioExportToBufferResultNative::CreateWeakLambda(this, [this](bool bSucceeded, const TArray64<uint8>& AudioData)
    {
	    // Handle the result
    }));