Hi all, I just got a dual 2.0Ghz G5 with 2.5GB RAM and upgraded to Logic Pro 6.41, with the MOTU 896HD (firewire) as my audio interface. When I load Atmosphere into an audio instrument and play while the sequencer is stopped, I hear a sudden 'pop' every once in a while. It's not a digital sync issue, since all my digital gear is synced to a mster clock source. I have my buffer setting for the 896 at 64, but it was still happening at 128. This is really strange to me. Does anybody have a similar experience or knows about this? Also, a few of my outboard gear are connected directly into the 896 (via a digital mixer) so that I can apply plug ins and bounce all inside the sequencer through the aux channels. Once in a while, I play on the keys and no sound comes out. Playing the sequencer for a second usually solves the problem. Is this normal? I used a Pro Tools Mix system before and I never had any of these problems. Is it that even with the 'powerful' G5, it can't handle all the processing coming in through the interface, or is it the interface itself? Thanks a lot in advance. J

on 4/1/04 5:48 AM, shadowmusika at shadowmusika@... wrote: > Hi all, > > I just got a dual 2.0Ghz G5 with 2.5GB RAM and upgraded to Logic Pro > 6.41, with the MOTU 896HD (firewire) as my audio interface. lucky bastard ;) > > When I load Atmosphere into an audio instrument and play while the > sequencer is stopped, I hear a sudden 'pop' every once in a while. > It's not a digital sync issue, since all my digital gear is synced > to a mster clock source. I have my buffer setting for the 896 at > 64, but it was still happening at 128. This is really strange to > me. Does anybody have a similar experience or knows about this? first off make sure you have the latest version of the Atmosphere AU (check Spectrasonic's site). then make sure you have the latest driver for the 896HD - MOTU released an update yesterday (v. 1.09). a buffer size of 64 or 126 is still really low, even for a dual G5 methinks. especially when you consider how CPU hungry Atmosphere is. when this happens do you have Logic's "system performance" floater window open? would be interesting to see if the Audio performance meter clips. another thing to consider is that some of Atmosphere's patches are more CPU hungry than others, and as such, reducing the # of voices can help. > > Also, a few of my outboard gear are connected directly into the 896 > (via a digital mixer) so that I can apply plug ins and bounce all > inside the sequencer through the aux channels. Once in a while, I > play on the keys and no sound comes out. Playing the sequencer for > a second usually solves the problem. Is this normal? odd. definitely download the latest 896HD driver. i have the 896 (not the HD) and haven't experienced this. is there a setting within the CueMix application that puts the interface to sleep when idle for a period of time? how are you monitoring your setup? do you have speakers connected directly to the main outs of the 896HD or are you using a mixer or some other interface? I ask because the only time i experience what you're experiencing is when i haven't output sound for a while. i have a pair of Mackie HR824s connected directly to the outs of my 896, and the Mackie's are set to "auto", i.e., they will shut off if no audio signal is received for a period of time. then when it finally does receive an audio signal it takes a second or two for the speakers to turn on and process the signal. it's a long shot but could this be your problem? > I used a Pro Tools Mix system before and I never had any of these > problems. Is it that even with the 'powerful' G5, it can't handle > all the processing coming in through the interface, or is it the > interface itself? not sure. i can't imagine it being the interface. have you thoroughly read the 896HD manual and really familiarized yourself with CueMix DSP? I'm pretty sure that with the latest incarnation you can have up to 4 inputs monitored with zero latency. are you monitoring your outboard gear through CueMix DSP or through Logic? if it's through Logic than maybe that's your problem? regards, brian

--- In logic-users@yahoogroups.com, Brian Tully <brian@t...> wrote: > on 4/1/04 5:48 AM, shadowmusika at shadowmusika@y... wrote: > > > Hi all, > > > > I just got a dual 2.0Ghz G5 with 2.5GB RAM and upgraded to Logic Pro > > 6.41, with the MOTU 896HD (firewire) as my audio interface. > > lucky bastard ;) > > > > > When I load Atmosphere into an audio instrument and play while the > > sequencer is stopped, I hear a sudden 'pop' every once in a while. > > It's not a digital sync issue, since all my digital gear is synced > > to a mster clock source. I have my buffer setting for the 896 at > > 64, but it was still happening at 128. This is really strange to > > me. Does anybody have a similar experience or knows about this? >[snipped by admin] > > regards, > brian Hi Brian, Thanks for your input. As you suggested, I downloaded the latest driver for the 896HD, and so far, the random pops seem to have vanished! One more question, though, you said, are you monitoring your outboard gear through > CueMix DSP or through Logic? if it's through Logic than maybe that's your > problem? I didn't realize that you can monitor through CueMix while you're running Logic. Right now, I have Audio Input objects set to the corresponding inputs through which I have my outboard gear plugged in, so I guess I'm monitoring through Logic. Is there a different way using the CueMix? Thanks again for your help. J