Opus Export Options

Other languages

English

OPUS file format (also called "Ogg Opus") is a size-compressed and lossy audio format developed for Internet streaming. It uses both SILK (used by Skype) and CELT (from Xiph.Org) codecs and supports variable bit rates from 6 kb/s to 510 kb/s.

For further details on OPUS see this Wikpedia page.

Accessed by: File > Export > Export Audio... then choosing OPUS (OggOpus) Files (FFmpeg) from the Save as type dropdown menu.

File:OPUS FFmpeg export dialog.jpg

Also accessed by: File > Export > Export Multiple... then choosing OPUS (OggOpus) Files (FFmpeg) from the Save as type dropdown menu. In this case the options dialog will appear in the center of the Export Multiple dialog.

Opus Export Setup

The Format options offer different ways to control the trade-off between the size and quality of the exported files.

Bit Rate

Opus Export offers several different bit rate options for the export ranging from 24 kbps up to 510 kbps. The default is 128 kbps.

Compression

This controls the degree of compression used ranging from 1 to 10 (default).

Frame Duration

The Frame Duration ranges from2.5 ms to 60 ms. The default is 20 ms.

VBR Mode

This is the mode used for Variable Bit Rate. This can be On (default), Off or Constrained.

Application

This defines what use you will be making of the exported file

• VOIP: Voice over IP optimized for voice
• Audio (default): optimized for audio
• Low Delay: useful for communication purposes (like voice calls, video conferencing or making music via the internet), for which not only high compression ratios are necessary, but low latency is critical too.

Cutoff

This can range from Disabled (default) to Fullband.

Opus export rates