How do i record in stereo on sony acid music 9?

SOURCE: Recording in Acid Pro 5

Are you plugging the instrument directly into the computer? If so you only have mono jacks from your bass, guitar so on and so forth! So in channel in only one to record! Try using a stereo microphone and record pointing at the amp. That way you will get stereo through your device. If that is not the problem make sure that the settings on the Prosonus is set to output stereo. And for most check all your plugs to make sure they are stereo inputs and outputs.

SOURCE: How do i get rid of microphone delay?

You need to adjust the buffer in acids settings. If you set the buffer too low, everything will be in time, but you will get pops and clicks in the audio. Try and find the happy medium for your system. Also be sure there are no other programs such as a virus scanner enabled or running while recording.

Depending on your sound card, there could be another solution if adjusting the buffer does not work for you.

You will then need to find a different ASIO driver that is compatible with your sound card. If you have a soundblaster, there are 3rd party ASIO drivers that you can install, and that should fix the issue.

Good Luck!

SOURCE: I have a Fostex DMT-8vl 8 track digital recorder.

You can copy. You cannot just dump the file data. Unless you have an audio interface with multiple inputs, you can only copy 2 tracks at a time. Also, to sync the timing you'll need a midi port on the computer. Then you make the computer the "master" and the Fostex a "slave" device.