Supported Audio file formats in iPhone [closed]

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What are the supported audio files formats in iPhone?

If I want to play a 2 hour audio files , what is the best audio file format I should have in my App?

Thanks

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mp3 why not. From: The Multimedia Support Section of the Reference Library

Audio Playback and Recording Formats

The audio playback formats supported in iOS are the following:

• AAC (AAC-LC)
• HE-AAC (v1 and v2)
• xHE-AAC - supported since iOS 13.0
• AC-3 (Dolby Digital) - supported since iOS 9.3
• E-AC-3 (Dolby Digital Plus) - supported since iOS 9.3
• MP3 (MPEG-1 audio layer 3
• AMR (Adaptive Multi-Rate, a format for speech) - not supported since iOS 4.3
• ALAC (Apple Lossless)
• iLBC (internet Low Bitrate Codec, another format for speech)
• IMA4 (IMA/ADPCM)
• linear PCM (uncompressed)
• µ-law and a-law

The audio recording formats supported in iOS are the following:

• AAC (on supported devices only)
• ALAC (Apple Lossless)
• iLBC (internet Low Bitrate Codec, for speech)
• IMA4 (IMA/ADPCM)
• linear PCM
• µ-law and a-law

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iOS Supports these audio types...

@"aac",@"adts",@"ac3",@"aif",@"aiff",@"aifc",@"caf",@"mp3",@"mp4",@"m4a",@"snd",@"au",@"sd2",@"wav"

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The Apple iPhone supports the following audio formats:

• AAC (16 to 320 Kbps)
• AIFF
• AAC Protected (MP4 from iTunes Store)
• MP3 (16 to 320 Kbps)
• MP3 VBR
• Audible (formats 2-4)
• Apple Lossless
• WAV