FreshDV @ PVC- Video Tools from PMA and WPPI
- Daily Inspiration - Coldplay?s Strawberry Swing
- Cineform Neo 3D Tutorial
- THR Roundtable with 2009?s Top Directors
- Daily Inspiration - Nuit Blanche
- Canon is a Battleship, Red is a Destroyer
- iPad SchmiPad
- Steven Soderbergh featurette on shooting Che with RED
- FreshDV Reviews the Genus Mattebox
- Fuze Movie Announced
-
A Fix for Youtube Audio Compression Abuse
Published by Matthew Jeppsen July 29th, 2008 in Audio, News, Post-Production, TutorialsIt seems that since sometime in June 2008 Youtube has been applying what sounds like an aggressive single-band compressor to the audio track of all video uploads by users. This is probably intended as a quick fix for clips that have poorly mixed or severely low audio levels, but it has an adverse effect on those that have mixed their upload audio levels with care…breathing and subtle ambient noises become overly loud, and music instruments distort oddly as the compressor attacks and decays. Listen to a Before and After compression example here.
Users have been talking this issue over, and the fix appears to be to mix in a high frequency 19kHz to 20kHz sine wave into the audio, thus tricking the Youtube compression tools into thinking that the audio is set at a uniform level. Of course, this workaround could be avoided if Youtube would just allow users the option to untick a “Enhance Audio Levels” option upon upload.
-
About FreshDV
-
Sponsors
-
Recommended
-
Recent Comments
- jf lalonde on Behind the Scenes Robert Rodriguez Shoot - All Hail FrankenRig
- ucuz cep telefonu on Strawberry Swing - Stop Motion Like You’ve Never Seen Before
- ucuz bilgisayar on Strawberry Swing - Stop Motion Like You’ve Never Seen Before
- CarolineSkinner18 on Red vs DSLRs vs Perspective
- red waiter on Red vs DSLRs vs Perspective
-
Fresh Links
Wow, what a difference! Makes me really think twice about ever hosting any of our concert footage with them again. I hope they add a radio option for uploading video that asks what kind of audio it is. It’s pretty easy for joe-user to pick between Interview/Documentary, Music and Movie. Of course the 80% (guessing) of their user-base with poor audio equipment won’t notice the difference, and will likely think it sounds better through their tiny laptop or satellite speakers.
Thankyou for addressing this problem.. it’s driving me crazy. I have tried messing with the volume on my video so many times and re-uploading it to YouTube and still it’s not perfect. The loud peaks are extremely loud and distorted. Could you possibly explain how one would go about ‘mixing in a high frequency 19kHz to 20kHz sine wave into the audio’… I seriously have no idea what that even means, but I really want to fix the audio on my vid so I can upload it to YT. Your help would be greatly appreciated!
Kelly,
Download Audacity. In the menu, go to generate. Change the freq to 20. Figure the number of seconds your video is and fill that in for the length.
Export as .wav.
Open your movie software and add that file to the audio of your video and export it.
Thank you so much Porta for explaining that too me!! There are so many people having problems with the YT audio.. it’s driving everyone crazy! Thanks for helping me out, I’ll try this when I get home from work and then spread your instructions onto everyone else I know so they can fix the problem too! Your help is greatly appreciated!
Kelly :)