Subject:A bit of utter silliness ...

Posted by: Chienworks

Date:6/10/2014 8:31:05 AM

Last night i was transferring some more old open reel to digital. The S/N ratio was pretty good, about 45dB or so, but i still used some pretty steep Noise Reduction to get rid of the tape hiss and hum, which probably weren't noticeable in the original recording on 50 year old equipment. I used 3 passes at about 30dB each and knocked the noise between the songs down to about -120dB (!!!!) without noticeably affecting the music.

However, when zooming in the timeline vertically i noticed one section that still had a little bit of visible waveform, so i copied it to a new file and normalized it. The result is quite intriguing. I think i'll call it "Alien Radio Signal". I especially enjoyed watching the X-Y axis display while listening to it.

http://www.chienworks.com/media/alien_radio_signal.wav

For those curious about the technical and Sound Forge aspects of this:
Pioneer RT-707 -> Tascam US-1800 -> Sound Forge @ 44100Hz, 16 bit.

Subject:RE: A bit of utter silliness ...

Reply by: Steve Grisetti

Date:6/11/2014 7:13:57 AM

I think you'd better contact SETI!