我有这个代码:
func loadSoundfont(_ pitch : String) {
let path: String = Bundle.main.path(forResource: "\(self.id)/\(pitch)", ofType: "f32")!
let url = URL(fileURLWithPath: path)
do {
let file = try AVAudioFile(forReading: url, commonFormat: AVAudioCommonFormat.pcmFormatFloat32, interleaved: true)
let format = file.processingFormat
let capacity = AVAudioFrameCount(file.length)
self.buffer = AVAudioPCMBuffer(pcmFormat: format, frameCapacity: capacity)
try file.read(into: self.buffer!)
} catch let error as NSError {
print("ERROR HERE", error.localizedDescription)
}
}
我收到以下错误:1954115647
这是:kAudioFileUnsupportedFileTypeError
我的 A4.f32 文件包含 PCM float 32。我在这里缺少什么吗?我的文件中没有标头,是否会导致此问题?
感谢评论中的 Rhythmic Fistman,我自己去加载了它,这样:
func loadSoundfont(_ pitch : String) {
let path: String = Bundle.main.path(forResource: "\(self.id)/\(pitch)", ofType: "f32")!
let url = URL(fileURLWithPath: path)
do {
let data = try Data(contentsOf: url)
let format = AVAudioFormat(commonFormat: .pcmFormatFloat32, sampleRate: 44100, channels: 2, interleaved: true)
self.buffer = AVAudioPCMBuffer(pcmFormat: format, frameCapacity: AVAudioFrameCount(data.count))
self.buffer!.floatChannelData!.pointee.withMemoryRebound(to: UInt8.self, capacity: data.count) {
let stream = OutputStream(toBuffer: $0, capacity: data.count)
stream.open()
_ = data.withUnsafeBytes {
stream.write($0, maxLength: data.count)
}
stream.close()
}
} catch let error as NSError {
print("ERROR HERE", error.localizedDescription)
}
}
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