The thing is I don't want to replace anything as that would take away from the original context of the book. Since this is a preservation I believe the book images should be presented as they are. If anything the brightness, color balance etc, needs to be adjusted accordingly for each image.
On the audio front I have suffered a slight hiccup. The USB turntable I am using to transfer the records is not of good quality. There is no way to adjust the tone arm for weight and as a result it is riding too low in the groove of the record and the result is a very noisey record. The quality of the records themselves is not all that great- that is to say they are not pressed on high quality vinyl. It is possible that these records may just be very noisey.
However I have resurected my hi-fi turntable and am ordering a new cartridge and stylus for it. My hope is that with the proper adjustments to the turntable, I can get a quieter, cleaner recording without having to digitally clean up each file.
In the meantime Brooks is doing a killer job with his attempts at cleaning each record up. The results are promising. I am hoping to get another couple books scanned in this week which will then free me up to work on cleanup of the pages and then I can begin designing how the project will look.