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How to get the duration of an audio file in iOS? - Stack ...

https://stackoverflow.com/questions/5219379/how-to-get-the-duration-of-an-audio-file-in-ios

Maybe this can help you : iPhone: get duration of an audio file. NSURL *fileUrl = [NSURL fileURLWithPath:yourFilePath]; AudioFileID fileID; OSStatus result = AudioFileOpenURL((__bridge CFURLRef)fileUrl,kAudioFileReadPermission, 0, &fileID); Float64 duration = 0; //seconds. the duration of the audio.

Core Audio Essentials - Apple Developer

https://developer.apple.com/library/archive/documentation/MusicAudio/Conceptual/CoreAudioOverview/CoreAudioEssentials/CoreAudioEssentials.html

You can use these to quickly approximate a VBR sound file’s duration or number of packets, in lieu of parsing the entire file to get exact numbers. Reading From and Writing To a Sound File. In iOS you typically use Audio File Services to read audio data from, and write it …

Using Audio - Apple Developer

https://developer.apple.com/library/archive/documentation/AudioVideo/Conceptual/MultimediaPG/UsingAudio/UsingAudio.html

The AudioServicesPlaySystemSound function lets you very simply play short sound files. The simplicity carries with it a few restrictions. Your sound files must be: No longer than 30 seconds in duration. In linear PCM or IMA4 (IMA/ADPCM) format. Packaged in a .caf, .aif, or .wav file. In addition, when you use the AudioServicesPlaySystemSound function:

ios - AVURLAsset returns duration as 0 - Stack Overflow

https://stackoverflow.com/questions/26053596/avurlasset-returns-duration-as-0

audioAsset = [AVURLAsset assetWithURL:itemURL]; CMTime assetTime = [audioAsset duration]; Float64 duration = CMTimeGetSeconds(assetTime); when I provide itemURL of any audio file of media library, I get the proper duration, and then I am able to trim the audio file. Then I save the trimmed audio file in document directory.

How to retrieve the duration of a MP3/WAV Audio File in ...

https://ourcodeworld.com/articles/read/1036/how-to-retrieve-the-duration-of-a-mp3-wav-audio-file-in-the-browser-with-javascript

audioContext.decodeAudioData(event.target.result, function(buffer) { // Obtain the duration in seconds of the audio file (with milliseconds as well, a float value) var duration = buffer.duration; // example 12.3234 seconds console.log("The duration of the song is of: " + duration + " seconds"); // Alternatively, just display the integer value with // parseInt(duration) // …

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