I guess what I meant to ask is if I run the pro Scan software would the scanner speaker still work for normal scanning? I'm not talking about playback. Probably a dumb question but I don't know how this stuff works. Thanks
In order to have ProScan or Butel's ARC536 record off the SDS100 you need to connect a cable from the earphone jack to the audio input of your computer. This will disconnect the internal speaker.
I imagine that one could set the computer up so that it plays the audio directly. This would likely be done someplace in the Sound Control Panel.
Alternately you could do some surgery on the scanner to tap the audio output somehow so that both the computer and the scanner's speaker gets audio (in effect adding a Record Jack) but that is not an ideal solution for sure...
I preferred to use my BCD996P2 for recording audio to ProScan or ARC536 via its Record jack. I can attest that it works very well. The great thing about this is that the volume control of the scanner does not affect the record level of the computer, thus allowing you to record and use the scanner's speaker independently of each other.
Another alternative is to use an SDS200, connect it to ProScan thru the Ethernet jack and record audio with that setup. I have yet to try that myself but it is on my list of things to do soon, at least so I know how to get it working.