On 4/3/17, William Caulfield <william.caulfi...@contentbridge.tv> 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? >> >> >> >> -- >> Cecil Westerhof >> Senior Software Engineer >> LinkedIn: http://www.linkedin.com/in/cecilwesterhof >> _______________________________________________ >> > > > > 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.
With equalizer filter. _______________________________________________ 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".
