Note: It may be difficult to hear the differences on small, inexpensive speakers. If you are using a pop-up blocker, you may have to override it to allow a new window to open and play the sound.   Examples 1. 78 RPM - Clicks and Pops and Hiss BEFORE 2. 78 RPM - Clicks and Pops and Hiss  AFTER 3. Reel to Reel - Hiss BEFORE 4. Reel to Reel - Hiss  AFTER 5. LP - Clicks and Pops BEFORE 6. LP - Clicks and Pops  AFTER 7. Cassette Tape - Extreme Hiss and low volume BEFORE * 8. Cassette Tape - Extreme Hiss and low volume  AFTER

* The "Before" example is actually after I increased the volume of the tape so it could be heard. Of course, this brings up the noise level as well.  Also, the tape only contained audio on the right channel. We increased the level, converted it to mono so the audio would be centered and reduced the noise level as much as possible without completely removing the voice.