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AUDIO.md

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Convert

Convert audio between multiple formats.

Options

The following parameters may be set for audio conversion operation:

Parameter Description Values Default
File type Audio file contrainer type MPEG-4, Core Audio, WAV, AIFF, AIFC, Adaptive Multirate MPEG-4
Audio codec Audio codec used by encoder AAC, Opus, FLAC, Linear PCM, Apple Lossless Audio Codec Source audio codec
Audio bitrate Audio bitrate, used by AAC and Opus codecs only Auto - set internally by AVAssetWriter
Custom(Int) - custom bitrate value in bps		 Auto
Audio quality Audio quality, AAC and FLAC only Low, Medium, High Unset
Sample Rate Sample rate in Hz Int Source sample rate

Usage

CompressionAudioSettings(
    codec: .flac,
    bitrate: .value(96_000),
    quality: .high,
    sampleRate: 44100
)

Cut

Cut the audio based on time interval. Time specified in seconds. If none of other audio settings is modified, the cutting is lossless (no audio re-encoding applied - original quality).

Usage

AudioTool.convert(
    ...
    edit: [
        .cut(from: 0.5, to: 7.5)
    ]
)

Info

Extract audio info without compression.

Usage

let info = try await AudioTool.getInfo(source: url)