Help w/cleaning up radio audio of Michigan vs. Florida

Submitted by karpodiem on March 31st, 2013 at 6:11 PM

So I decided to start recording the radio broadcasts after learning we will probably never have a full broadcast of the Kansas game (would have loved to re-live Matt Shepard's call durin the last two minutes). Eventually these audio recordings will be synced up with the HD network broadcasts so we can have hometeam audio + network video. Look for that this coming football season.

The only problem is that was linking to the CBS national radio broadcast. I couldn't find an internet stream of the local broadcast. I was forced to record the analog broadcast with line-in audio to my PC. The only problem is that you get the constant buzzing/sound interference typical of analog audio. 

Are there any audio gurus out there who might be able to clean up the audio/take the buzzing out? I can cut the commercials out myself, I just need help with taking out the distortion. Here's the .mp3 of the broadcast -


PS - has anyone been able to find an online stream of Matt Shepard calling the game? If so, where?




March 31st, 2013 at 7:06 PM ^

They replayed the call on Burkes shot during the pregame today while I was driving to my Aunts. I almost pulled over I had the biggest chills hearing it.


March 31st, 2013 at 9:42 PM ^

Open source audio processing software. It has filters for removing noise - you can record a slice of the audio where nothing's going on but the noise, then use that as a filter. You probably won't be able to rid of all of it, though.
Also, you need to get rid of the source of that buzz - often that is a grounding problem and if you hook up the HD Radio the same way, you could still have the problem.
On your recording, hopefully you recorded it uncompressed or using a lossless codec like flac or something. If it's mp3, pulling it apart, processing it, thrn recompressing it will cost you more fidelity.


April 2nd, 2013 at 11:48 PM ^

I would like to thank the OP for the Florida win with Shep on the mic. I think the sound quality is quite good for OTA. Nice work! I too, was very disappointed when I heard only silence on the WSGW stream and heard national announcers on the Michigan website. Is the Kansas victory available?