![]() ![]() Expected packet loss percentageĮxample 2: Grab the audio from a video file and encode it as opus Favor improved speech intelligibilityĪudio E.A. ![]() Here are all options for libopus: $ avconv -h full | grep opus -A 11Īvconv version 9.11-6:9.11-3+b2, Copyright (c) 2000-2013 the Libav developersīuilt on 17:45:45 with gcc 4.8 (Debian 4.8.2-16) -b:a 100k sets the audio's bitrate to 100 kilobit/s.-codec:a opus selects the opus encoder for the audio streams ( a).-map 0:a will select all audio streams ( a) from the input file 0.With version 9 of libav-tools and libopus0 installed you can simply, for example, do: avconv -i file.mp3 -map 0:a -codec:a opus -b:a 100k -vbr on file.opus Example 1: Reencode an audio file as opus Ubuntu 14.04 and Debian 8 ship with version 9 of libav-tools in their repositories, and it has built-in support for Opus through the package libopus0.
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