Dp4.12 Audio Problems, can't preview audio Options

[Anselm]

I just got Digital Performer 4.12(with no manual) that I am using with mac os x on a 400mghz 512 mb G3. I tried recording some audio and found that the signal is getting through to make the track just fine, but i can not preview or monitor the take simply by arming the track. This is bizarre for me. How do you set the rec levels in DP4? How do you monitor what is being recorded? This doesn't seem to be standard at all, but perhaps my set up is wrong somewhere? How can I just hear an instrument in DP4? Any help is greatly appreciated.

[prodigimusic]

Since you are using an older G3 machine, you will encounter latency problems due to slow processor speed. DP4 is optimized to perform well on G4 altivec engines or on the newer G5 computers. For your synchronization needs, you can try hooking up your mac to an older MIDI TIME PIECE or OPCODE STUDIO 4 hardware if your Mac has built-in serial ports or MTP(USB) if it has USB ports. I'm currently running DP 3.11 with Unity DS-1 soft-sampler on my Quicksilver G4 800Mhz with 768Mb amount of RAM. I'm still using an old STUDIO 4 (with KEYSPAN USB to serial adapter) to patch my MIDI setup and to sync my old DA88 machine (with SY88 sync card installed) by enabling MMC (MIDI Machine Control) on DP3. I've already tried with success using SMPTE or MIDI Clock to sync my gears slaving my Mac using the DA88 as master or vice versa. My audio gets routed through MOTU 828 firewire audio interface. Even with this kind of setup, I'm still experiencing delays when monitoring audio especially on higher buffer settings. The solution is lowering the buffer during vocal takes then afterwards increasing the buffer to the highest setting during mixing. Higher buffer size lets you maximize processor speeds and enables you to use more fx plugins in your mix. I hope this could be of some help to you. I only learned all this stuff by myself and was under privileged to attend any graduate school here in the Philippines so please excuse me for any grammatical errors. Thank you!