On Monday 3 Apr 2017 20:58 CEST, William Caulfield wrote: > On Sat, Apr 1, 2017 at 1:21 PM, Cecil Westerhof <ce...@decebal.nl> wrote: > >> I was asked to make videos during a ToastMasters contest. I had >> ordered a microphone for this, but sadly it did not arrive in time. >> So I needed to use the internal microphone from my Canon HS60 SX. >> Being away about ten meters from the speakers, their voices are >> much to soft. So I needed to pump up the audio. I did this with: >> ffmpeg -y -i speaker.MP4 -vcodec copy -af volume=3 >> speakerAudioInc.MP4 >> >> Is that the correct way, or is there a better way? >> > Not really an answer to your question, but speaking as an audio > engineer: > > The boost you want is around 2.5Khz. That's where vocals are > understood. 700hz up to 3.5khz is probably a good range. Avoid > boosting below 400hz (muddy) and above 10Khz (zingy). > > I guess I'm suggesting some sort of EQ before the volume increase. > Not sure how that is done in FFMPEG.
That is good to know. (Know I have to find out how to do that.) -- Cecil Westerhof Senior Software Engineer LinkedIn: http://www.linkedin.com/in/cecilwesterhof _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
