VidiEditor allows one to set specific shape tags as audio proxy format. All items having this shape defined will be found in the VidiEditor search. Another option is to use original as audio format. As a result, VidiEditor will filter based on the following criteria when original is configured to be used.
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Shape: Original
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Codec Family: AAC
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Media Type: Audio (no video component)
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File Extension: m4a, mp4, aac
It is still recommended to set a shape tag for audio-only files as it clearly specifies a usable file.
Format Specification
Due to the playback in VidiEditor source and timeline players, the usage of audio-only in VidiEditor is limited to:
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Container: MP4, M4A, AAC
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Audio Codec: AAC
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Samplerate: 48 kHz, 44.1 kHz
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Bitrate: 192 kbps
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Channels: up to 8x stereo
These parameters are also used for recordings done on voice-over recordings. A suitable shape tag will be added during the installation:
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<TranscodePresetDocument xmlns="http://xml.vidispine.com/schema/vidispine">
<format>mp4</format>
<audio>
<codec>aac</codec>
<bitrate>192000</bitrate>
<framerate>
<numerator>1</numerator>
<denominator>48000</denominator>
</framerate>
<channel>0</channel>
<channel>1</channel>
<stream>2</stream>
</audio>
<video>
<noVideo>true</noVideo>
</video>
<metadata/>
</TranscodePresetDocument>