[TriLUG] Transferring audio cassettes to CDs with Linux

[john mitchell]

    Many sound cards have no protection for input (and output) over 
voltages. When a large signal hit the input circuits, they suffered badly.
  The newer, higher quality cards probably protect against this problem. 
A circuit for Speaker Measurements here (  
http://www.gti.net/wallin/audio/audua/audua.html ) has added protection 
to save the sound card. ( notice the protection diodes on the "Jig 
Schematic").

 > mike wrote;
 >...the inputs started sounding 'scratchy', this happened on multiple 
SB cards....

john mitchell