);<\/p>\n
“`<\/p>\n
\uff082\uff09Audio Converter<\/p>\n
Audio Converter \u662f\u4e00\u79cd\u97f3\u9891\u683c\u5f0f\u8f6c\u6362\u7684\u65b9\u5f0f\uff0c\u53ef\u4ee5\u5c06\u4e00\u79cd\u683c\u5f0f\u7684\u97f3\u9891\u8f6c\u6362\u6210\u53e6\u4e00\u79cd\u683c\u5f0f\u7684\u97f3\u9891\u3002\u4f7f\u7528 Audio Converter \u9700\u8981\u8bbe\u7f6e\u8f93\u5165\u683c\u5f0f\u3001\u8f93\u51fa\u683c\u5f0f\u548c\u56de\u8c03\u51fd\u6570\u3002<\/p>\n
\u4e0b\u9762\u662f\u4e00\u4e2a\u7b80\u5355\u7684 Audio Converter \u793a\u4f8b\uff1a<\/p>\n
“`objc<\/p>\n
\/\/ \u5b9a\u4e49\u97f3\u9891\u8f6c\u6362\u5668<\/p>\n
AudioConverterRef audioConverter;<\/p>\n
\/\/ \u8bbe\u7f6e\u8f93\u5165\u683c\u5f0f<\/p>\n
AudioStreamBasicDescription inputFormat;<\/p>\n
inputFormat.mSampleRate = 44100;<\/p>\n
inputFormat.mFormatID = kAudioFormatLinearPCM;<\/p>\n
inputFormat.mFormatFlags = kAudioFormatFlagIsSignedInteger | kAudioFormatFlagIsPacked;<\/p>\n
inputFormat.mChannelsPerFrame = 1;<\/p>\n
inputFormat.mFramesPerPacket = 1;<\/p>\n
inputFormat.mBitsPerChannel = 16;<\/p>\n
inputFormat.mBytesPerFrame = inputFormat.mBitsPerChannel \/ 8 * inputFormat.mChannelsPerFrame;<\/p>\n
inputFormat.mBytesPerPacket = inputFormat.mBytesPerFrame * inputFormat.mFramesPerPacket;<\/p>\n
\/\/ \u8bbe\u7f6e\u8f93\u51fa\u683c\u5f0f<\/p>\n
AudioStreamBasicDescription outputFormat;<\/p>\n
outputFormat.mSampleRate = 44100;<\/p>\n
outputFormat.mFormatID = kAudioFormatMPEG4AAC;<\/p>\n
outputFormat.mFormatFlags = 0;<\/p>\n
outputFormat.mChannelsPerFrame = 1;<\/p>\n
outputFormat.mFramesPerPacket = 1024;<\/p>\n
outputFormat.mBitsPerChannel = 0;<\/p>\n
outputFormat.mBytesPerFrame = 0;<\/p>\n
outputFormat.mBytesPerPacket = 0;<\/p>\n
\/\/ \u521b\u5efa\u97f3\u9891\u8f6c\u6362\u5668<\/p>\n
OSStatus status = AudioConverterNew(&inputFormat, &outputFormat, &audioConverter);<\/p>\n
\/\/ \u8bbe\u7f6e\u97f3\u9891\u56de\u8c03<\/p>\n
AudioBufferList inputBufferList;<\/p>\n
inputBufferList.mNumberBuffers = 1;<\/p>\n
inputBufferList.mBuffers[0].mNumberChannels = inputFormat.mChannelsPerFrame;<\/p>\n
inputBufferList.mBuffers[0].mDataByteSize = bufferSize;<\/p>\n
inputBufferList.mBuffers[0].mData = inputBuffer;<\/p>\n
AudioBufferList outputBufferList;<\/p>\n
outputBufferList.mNumberBuffers = 1;<\/p>\n
outputBufferList.mBuffers[0].mNumberChannels = outputFormat.mChannelsPerFrame;<\/p>\n
outputBufferList.mBuffers[0].mDataByteSize = outputBufferSize;<\/p>\n
outputBufferList.mBuffers[0].mData = outputBuffer;<\/p>\n
UInt32 numOutputPackets = outputBufferSize \/ outputFormat.mBytesPerPacket;<\/p>\n
status = AudioConverterFillComplexBuffer(audioConverter, inputCallback, &inputBufferList, &numOutputPackets, &outputBufferList, NULL);<\/p>\n
\/\/ \u9500\u6bc1\u97f3\u9891\u8f6c\u6362\u5668<\/p>\n
status = AudioConverterDispose(audioConverter);<\/p>\n
“`<\/p>\n
3. \u97f3\u9891\u5904\u7406<\/p>\n
\u97f3\u9891\u5904\u7406\u4e3b\u8981\u901a\u8fc7 AVFoundation \u6846\u67b6\u6765\u5b9e\u73b0\u3002AVFoundation \u6846\u67b6\u63d0\u4f9b\u4e86\u4e24\u79cd\u97f3\u9891\u5904\u7406\u65b9\u5f0f\uff0c\u5206\u522b\u662f AVAudioPlayer \u548c AVAudioRecorder\u3002<\/p>\n
\uff081\uff09AVAudioPlayer<\/p>\n
AVAudioPlayer \u662f\u4e00\u79cd\u97f3\u9891\u64ad\u653e\u5668\uff0c\u53ef\u4ee5\u64ad\u653e\u672c\u5730\u6216\u8fdc\u7a0b\u7684\u97f3\u9891\u6587\u4ef6\uff0c\u652f\u6301\u591a\u79cd\u97f3\u9891\u683c\u5f0f\uff0c\u5982 MP3\u3001AAC \u548c WAV \u7b49\u3002\u4f7f\u7528 AVAudioPlayer \u9700\u8981\u8bbe\u7f6e\u97f3\u9891\u6587\u4ef6\u548c\u56de\u8c03\u51fd\u6570\u3002<\/p>\n
\u4e0b\u9762\u662f\u4e00\u4e2a\u7b80\u5355\u7684 AVAudioPlayer \u793a\u4f8b\uff1a<\/p>\n
“`objc<\/p>\n
\/\/ \u5b9a\u4e49\u97f3\u9891\u64ad\u653e\u5668<\/p>\n
AVAudioPlayer *audioPlayer;<\/p>\n
\/\/ \u52a0\u8f7d\u97f3\u9891\u6587\u4ef6<\/p>\n
NSURL *url = [NSURL fileURLWithPath:@”\/path\/to\/audio\/file”];<\/p>\n
audioPlayer = [[AVAudioPlayer alloc] initWithContentsOfURL:url error:nil];<\/p>\n
\/\/ \u8bbe\u7f6e\u97f3\u9891\u56de\u8c03<\/p>\n
audioPlayer.delegate = self;<\/p>\n
\/\/ \u64ad\u653e\u97f3\u9891<\/p>\n
[audioPlayer play];<\/p>\n
“`<\/p>\n
\uff082\uff09AVAudioRecorder<\/p>\n
AVAudioRecorder \u662f\u4e00\u79cd\u97f3\u9891\u5f55\u5236\u5668\uff0c\u53ef\u4ee5\u5f55\u5236\u97f3\u9891\u5e76\u4fdd\u5b58\u5230\u672c\u5730\u6216\u8fdc\u7a0b\u7684\u6587\u4ef6\u4e2d\u3002\u4f7f\u7528 AVAudioRecorder \u9700\u8981\u8bbe\u7f6e\u97f3\u9891\u683c\u5f0f\u3001\u5f55\u97f3\u6587\u4ef6\u548c\u56de\u8c03\u51fd\u6570\u3002<\/p>\n
\u4e0b\u9762\u662f\u4e00\u4e2a\u7b80\u5355\u7684 AVAudioRecorder \u793a\u4f8b\uff1a<\/p>\n
“`objc<\/p>\n
\/\/ \u5b9a\u4e49\u97f3\u9891\u5f55\u5236\u5668<\/p>\n
AVAudioRecorder *audioRecorder;<\/p>\n
\/\/ \u8bbe\u7f6e\u97f3\u9891\u683c\u5f0f<\/p>\n
NSDictionary *settings = @{<\/p>\n
AVFormatIDKey : @(kAudioFormatLinearPCM),<\/p>\n
AVSampleRateKey : @(44100),<\/p>\n
AVNumberOfChannelsKey : @(1),<\/p>\n
AVLinearPCMBitDepthKey : @(16),<\/p>\n
AVLinearPCMIsBigEndianKey : @(NO),<\/p>\n
AVLinearPCMIsFloatKey : @(NO),<\/p>\n
};<\/p>\n
\/\/ \u521b\u5efa\u97f3\u9891\u5f55\u5236\u5668<\/p>\n
NSURL *url = [NSURL fileURLWithPath:@”\/path\/to\/audio\/file”];<\/p>\n
audioRecorder = [[AVAudioRecorder alloc] initWithURL:url settings:settings error:nil];<\/p>\n
\/\/ \u8bbe\u7f6e\u97f3\u9891\u56de\u8c03<\/p>\n
audioRecorder.delegate = self;<\/p>\n
\/\/ \u5f00\u59cb\u5f55\u5236\u97f3\u9891<\/p>\n
[audioRecorder record];<\/p>\n
“`<\/p>\n
4. \u97f3\u9891\u64ad\u653e<\/p>\n
\u97f3\u9891\u64ad\u653e\u4e3b\u8981\u901a\u8fc7 MediaPlayer \u6846\u67b6\u6765\u5b9e\u73b0\u3002MediaPlayer \u6846\u67b6\u63d0\u4f9b\u4e86\u4e24\u79cd\u97f3\u9891\u64ad\u653e\u65b9\u5f0f\uff0c\u5206\u522b\u662f MPMusicPlayerController \u548c AVPlayer\u3002<\/p>\n
\uff081\uff09MPMusicPlayerController<\/p>\n
MPMusicPlayerController \u662f\u4e00\u79cd\u97f3\u4e50\u64ad\u653e\u5668\uff0c\u53ef\u4ee5\u64ad\u653e\u672c\u5730\u6216\u8fdc\u7a0b\u7684\u97f3\u4e50\uff0c\u652f\u6301\u591a\u79cd\u97f3\u9891\u683c\u5f0f\uff0c\u5982 MP3\u3001AAC \u548c WAV \u7b49\u3002\u4f7f\u7528 MPMusicPlayerController \u9700\u8981\u8bbe\u7f6e\u97f3\u4e50\u6587\u4ef6\u548c\u56de\u8c03\u51fd\u6570\u3002<\/p>\n
\u4e0b\u9762\u662f\u4e00\u4e2a\u7b80\u5355\u7684 MPMusicPlayerController \u793a\u4f8b\uff1a<\/p>\n
“`objc<\/p>\n
\/\/ \u5b9a\u4e49\u97f3\u4e50\u64ad\u653e\u5668<\/p>\n
MPMusicPlayerController *musicPlayer;<\/p>\n
\/\/ \u52a0\u8f7d\u97f3\u4e50\u6587\u4ef6<\/p>\n
NSURL *url = [NSURL fileURLWithPath:@”\/path\/to\/music\/file”];<\/p>\n
musicPlayer = [MPMusicPlayerController applicationMusicPlayer];<\/p>\n
musicPlayer.nowPlayingItem = [MPMediaItem itemWithURL:url];<\/p>\n
\/\/ \u64ad\u653e\u97f3\u4e50<\/p>\n
[musicPlayer play];<\/p>\n
“`<\/p>\n
\uff082\uff09AVPlayer<\/p>\n
AVPlayer \u662f\u4e00\u79cd\u9ad8\u7ea7\u97f3\u9891\u64ad\u653e\u5668\uff0c\u53ef\u4ee5\u64ad\u653e\u672c\u5730\u6216\u8fdc\u7a0b\u7684\u97f3\u9891\u6587\u4ef6\uff0c\u652f\u6301\u591a\u79cd\u97f3\u9891\u683c\u5f0f\uff0c\u5982 MP3\u3001AAC \u548c WAV \u7b49\u3002\u4f7f\u7528 AVPlayer \u9700\u8981\u8bbe\u7f6e\u97f3\u9891\u6587\u4ef6\u548c\u56de\u8c03\u51fd\u6570\u3002<\/p>\n
\u4e0b\u9762\u662f\u4e00\u4e2a\u7b80\u5355\u7684 AVPlayer \u793a\u4f8b\uff1a<\/p>\n
“`objc<\/p>\n
\/\/ \u5b9a\u4e49\u97f3\u9891\u64ad\u653e\u5668<\/p>\n
AVPlayer *audioPlayer;<\/p>\n
\/\/ \u52a0\u8f7d\u97f3\u9891\u6587\u4ef6<\/p>\n
NSURL *url = [NSURL fileURLWithPath:@”\/path\/to\/audio\/file”];<\/p>\n
AVPlayerItem *playerItem = [AVPlayerItem playerItemWithURL:url];<\/p>\n
audioPlayer = [AVPlayer playerWithPlayerItem:playerItem];<\/p>\n
\/\/ \u8bbe\u7f6e\u97f3\u9891\u56de\u8c03<\/p>\n
[playerItem addObserver:self forKeyPath:@”status” options:NSKeyValueObservingOptionNew context:nil];<\/p>\n
\/\/ \u64ad\u653e\u97f3\u9891<\/p>\n
[audioPlayer play];<\/p>\n
“`<\/p>\n
\u4ee5\u4e0a\u5c31\u662f iOS \u97f3\u9891\u5f00\u53d1\u7684\u539f\u7406\u548c\u8be6\u7ec6\u4ecb\u7ecd\uff0c\u5e0c\u671b\u80fd\u591f\u5bf9\u5f00\u53d1\u8005\u6709\u6240\u5e2e\u52a9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
iOS \u97f3\u9891\u5f00\u53d1\u662f\u6307\u5f00\u53d1 iOS \u5e73\u53f0\u4e0a\u7684\u97f3\u9891\u5e94\u7528\u7a0b\u5e8f\uff0c\u5982\u97f3\u4e50\u64ad\u653e\u5668\u3001\u5f55\u97f3\u673a\u3001\u8bed\u97f3\u8bc6\u522b\u7b49\u3002iOS \u5e73\u53f0\u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684\u97f3\u9891\u6846\u67b6\uff0c\u5f00\u53d1\u8005\u53ef\u4ee5\u5229\u7528\u8fd9\u4e9b\u6846\u67b6\u6765\u5b9e\u73b0\u5404\u79cd\u97f3\u9891\u5e94\u7528\u3002\u672c\u6587\u5c06\u4ecb\u7ecd iOS \u97f3\u9891\u5f00\u53d1\u7684\u539f<\/p>\n","protected":false},"author":12,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[2752,2753,90,74,2751],"class_list":["post-1253","post","type-post","status-publish","format-standard","hentry","category-zuoapp","tag-html5---ios","tag-2753","tag-90","tag-74","tag-2751"],"_links":{"self":[{"href":"https:\/\/www.zhidianwl.com\/zhidian\/wp-json\/wp\/v2\/posts\/1253","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.zhidianwl.com\/zhidian\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.zhidianwl.com\/zhidian\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.zhidianwl.com\/zhidian\/wp-json\/wp\/v2\/users\/12"}],"replies":[{"embeddable":true,"href":"https:\/\/www.zhidianwl.com\/zhidian\/wp-json\/wp\/v2\/comments?post=1253"}],"version-history":[{"count":0,"href":"https:\/\/www.zhidianwl.com\/zhidian\/wp-json\/wp\/v2\/posts\/1253\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.zhidianwl.com\/zhidian\/wp-json\/wp\/v2\/media?parent=1253"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.zhidianwl.com\/zhidian\/wp-json\/wp\/v2\/categories?post=1253"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.zhidianwl.com\/zhidian\/wp-json\/wp\/v2\/tags?post=1253"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
![](\"https:\/\/i.cdn.yimenapp.com\/2023-04\/03\/17\/21656217626.jpg\")
<\/figure>\n<\/p>\n