On Mon, 4 Dec, 2023, 10:27 pm Ferdi Scholten, <fe...@sttc-nlp.nl> wrote:
> *cap_soundcommand* "ffmpeg -f s16le -ar %s -ac 2 -i - -c:a libopus -vbr on > > -compression_level 0 -application lowdelay -b:a 128k -y temp_a.nut" > > > > Is this VBR encoding, is `-b:a 128k` the average bitrate or > maximum/minimum > > allowed bitrate ? > > _______________________________________________ > It is vbr recording with an average bitrate of 128k > > You further restrict the encoder optimizations (with -application > lowdelay, which tries to eliminate the lowest quality encoding modes) > which might (or not) also lead to lesser quality and almost certainly to > bigger then needed encodes. (The opus api documentation specifically > states to use it with caution...) > > You can omit -vbr on as it is the default setting. > Okay. I will change to `application audio` as it is better (faithfulness to the audio). I need realtime encoding so I put -compression_level 0 to enable fast encoding speed. Thanks. > _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
