如何在录制mp3格式的音频文件? [英] How to record an audio file in .mp3 format?
问题描述
我使用以下设置使用AVAudioRecorder录制音频文件中的mp3格式。
I am using the following settings for recording audio file in .mp3 format using AVAudioRecorder.
NSDictionary *recordSettings = [[NSDictionary alloc] initWithObjectsAndKeys:
[NSNumber numberWithFloat: 44100.0],AVSampleRateKey,
[NSNumber numberWithInt: kAudioFormatMPEGLayer3],AVFormatIDKey,
[NSNumber numberWithInt: 1], AVNumberOfChannelsKey,
[NSNumber numberWithInt: AVAudioQualityMax],AVEncoderAudioQualityKey,nil];
但无法与这些记录。
我搜索了很多本,但没有能够得到一些相关的职位。
一些帖子说,这是不是possible.If其不可能的,那么,为什么这样呢?
请回答。
But not able to record with these. I searched a lot for this but wasn't able to get some relevant post. Some posts say that it is not possible.If its not possible then why so? Please answer.
推荐答案
问题是 kAudioFormatMPEGLayer3
这是不被支持的 AVAudioRecorder
。
The Problem is kAudioFormatMPEGLayer3
which is not supported by AVAudioRecorder
.
另外,您可以使用 kAudioFormatAppleIMA4
为您记录的目的。
Alternatively you can use kAudioFormatAppleIMA4
for your recording purpose.
最后,您可以编写自己的编码逻辑转换 kAudioFormatAppleIMA4
到 MP3
格式。
Finally you can write your own encoding logic to convert kAudioFormatAppleIMA4
in to MP3
Format.
录制目的的其它支持的编码是
The other supported encoding for Recording purpose are
kAudioFormatMPEG4AAC
kAudioFormatAppleLossless
kAudioFormatAppleIMA4
kAudioFormatiLBC
kAudioFormatULaw
kAudioFormatLinearPCM
有关更多信息,你可以参考<一个href=\"http://stackoverflow.com/questions/1010343/how-do-i-record-audio-on-iphone-with-avaudiorecorder\">this帖子左右。
For more info you can refer to this post of SO.
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