I have a recording of a yechidus from Isru Chag Shavuos 5739. The Lubavitch Junior Boys School in London took a group of 7-10 year olds to 770 for Yom Tov. The Rebbe gave them all a siddur and spoke to them in English for a few minutes.
The problem is that when i try and transfer the audio from cassette to my computer it comes out very muffled. The original is reasonably clear, however, on the MP3 all you can hear is the background noise.
If anyone has some good advice on how i can convert it please leave a message in the comments.
thanks