When used as an output option (before an output url), decodes but discards input until the timestamps reach position.ĭuration and position follow the Time Duration Syntax :.When used as an input option (before -i), seeks in this input file to position.When used as an output option (before an output url), stop writing the output after its duration reaches duration.When used as an input option (before -i), limit the duration of data read from the input file.Note: -acodec is an alias for codec:a which can be specified also as c:aĪs specified in the Main Options FFMPEG Documentation ffmpeg -ss -i inputfile -t -c:a copy outputfile.ffmpeg -ss -t -i inputfile -c:a copy outputfile.I've found either of the following satisfactory for trimming my audio files: You may, for instance, change the audio bitrate or add custom audio filters.To expand a bit on Michael Madsens' Answer: Optional function to make changes to the underlying fluent-ffmpeg command. Which audio channel to extract in the case of multiple audio channels. If no format or output file is specified, the result will default to an mp3 stream. If format is not specified, it will be inferred from the output file extension. ![]() Note: you may either specify output or format. If output is not specified, the result will be a ReadableStream. Returns a Promise for when the operation is complete. ![]() Usage const extractAudio = require( 'ffmpeg-extract-audio')Įxtracts an audio stream from a media file. Install npm install -save ffmpeg-extract-audio ![]() Extracts an audio stream from a media file using fluent-ffmpeg.
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