Pulsar 3.01 Big mixer signal flow mysterie!

postmom · Post by **postmom** » Sat Nov 03, 2001 12:33 pm

I’ve got Pulsar 3.01 running with Logic audio platinum 4.8.1
Audio from my drumcomputer is entering Pulsars big mixer on channel 3-4, routed to bus 3 and 4 connected to ASIO driver 3-4 and thus entering Logic on i/p 3-4. So far so good, but then when I try to record the drumcomputer in Logic, audio from it is also send to the bigmixers-Mix Inputs 3-4, doubling it causing the audio signal on the bigmixer output to clip. This problem only occurs when Logic is recording or in rec ready mode. in Logic I don’s use software monitoring and the outputs from the recorded drums in Logic are routed to the bigmixer-Mix inputs 13 and 14(not to 3 and 4). In Pulsars project window I connected eveything in the same manner as how I did it with Pulsar 2 where I did not have these problems.
I know it has no effect on the recording process but when recording, this is not what I want to listen to and I don’t think my speakers want to either and I really like to know what’s going (wr)on(g)?

algorhythm · Post by **algorhythm** » Sat Nov 03, 2001 12:39 pm

sounds like a feedback loop to me.

either only send drums to ASIO or BM, or don't hook up your ASIO outs to the BM (or to anything at all, cuz you don't need to monitor ASIO cuz you got the drums going to BM. . .

LHong · Post by **LHong** » Sat Nov 03, 2001 12:41 pm

Try to replace the new mixer and maybe other devices in the current project. We had similar problem before with new upgraded version and this way fixed it.

Marc de Ruiter · Post by **Marc de Ruiter** » Sat Nov 03, 2001 2:24 pm

Uncheck the software (input) monitoring in Audio Hardware & Driver dialogbox in Logic Audio. You don't need it because you monitor the input signal by the Big Mixer.
Regards,
Marc

LHong · Post by **LHong** » Sat Nov 03, 2001 2:36 pm

It meant the pulsar!

<font size=-1>[ This Message was edited by: LHong on 2001-11-03 14:45 ]</font>

Post by **garyb** » Sat Nov 03, 2001 8:38 pm

marc de ruiter has the solution.

postmom · Post by **postmom** » Sun Nov 04, 2001 4:02 am

I know about the software monitoring, it's unchecked but it makes no difference. I also tried to replace the mixer but it makes no difference

zaphod · Post by **zaphod** » Wed Nov 07, 2001 2:23 pm

hi postmom.
maybe this phenomenon occurs, because you have your I/O-channel AND your bus-channel both routed to the stereo-mix output ?
This would cause an signal-addition and your stereo-mix output, which i suggest you monitor during recording, will clip, because it gets twice the same signal.

But refering to your description, this problem only take place, when you record, or record-enable your sequenzer!
However the situation explained above would happen everytime you route a signal from a channel, that is routed to st-mix to a bus, which is also routed to st-mix.

Probably you should check this.

greetings,
zaphod.

felix o. · Post by **felix o.** » Thu Nov 08, 2001 1:40 am

well, i always disconnect any devices i want to record in logic from the pulsar mixer (cause i still don´t trust the mixer in the sense of phase correlation) and connect it directly to the asio dest. this way my signal is always clean. by this cabling you need to put software monitoring on or you just wait till you recorded the track for listening to it.
felix