CPU peaking when using KomPakt

[SoftJunkie]

I'm trying to set up a multi with Bass, Piano, Organ and Strings (for 'Trains' 'Drops of Jupiter'). It seems that NI KomPakt Piano is a CPU hog and causes nasty digital glitching. I've bumped the sample buffer size to 256 but i still get it ocassionally, even if it is the only instrument in the multi.

Do you have any tips on optimizing the Receptor performance?

[Rick@MuseResearch]

Adding RAM will make a big difference, Receptor will accept up 2G Bytes. I’ve tested Kompakt with 768K of RAM and it worked great but this is a case were more is better.

I'm trying to set up a multi with Bass, Piano, Organ and Strings (for 'Trains' 'Drops of Jupiter'). It seems that NI KomPakt Piano is a CPU hog and causes nasty digital glitching. I've bumped the sample buffer size to 256 but i still get it ocassionally, even if it is the only instrument in the multi.

Do you have any tips on optimizing the Receptor performance?

[SoftJunkie]

Thanks. I'll give it a try.

I've got a related question. I always thought that with DDR, the performance would be better the RAM was a matched set - 2-512MB or 2-1GB. why is this not the recommended setup with Receptor?

[Rick@MuseResearch]

You can mix and match but I think it's a good idea to use RAM of the same type and manufacture when possible.

Thanks. I'll give it a try.

I've got a related question. I always thought that with DDR, the performance would be better the RAM was a matched set - 2-512MB or 2-1GB. why is this not the recommended setup with Receptor?

[SoftJunkie]

i am referring to the ram size, not the vendor. i thought DDR gains its performance improvement by having two ram modules of the same size (2-512MB parts in separate sockets, for example). then, the data accesses are interleaved among the two sockets and thruput is improved.

[topaz]

kompakt doesnt do DFD ?

[Rick@MuseResearch]

Yes

kompakt doesnt do DFD ?

[topaz]

why does he need more ram then ? cant he use the DFD.

?

Yes

kompakt doesnt do DFD ?

[Rick@MuseResearch]

Experience with product is what I'm basing this on; the additional RAM also ends up helping the CPU load. For me I really notice a big overall performance improvement at 768MB of RAM but I would think hard about stuffing a full 2GB into it.

why does he need more ram then ? cant he use the DFD.

?

Yes

kompakt doesnt do DFD ?

[SoftJunkie]

could you clarify? are you saying that you recommend 2GB or not?

[SoftJunkie]

MaxReverb,

just to clarify, are you saying that KomPakt DOES or DOES NOT support DFD when running on Receptor?

[ObsoleteAcc99]

MaxReverb,

just to clarify, are you saying that KomPakt DOES or DOES NOT support DFD when running on Receptor?

it does, but you can never have enough ram, is the general jist of what Max is saying.

[DanTimis]

MaxReverb,

just to clarify, are you saying that KomPakt DOES or DOES NOT support DFD when running on Receptor?

Kompakt DOES support DFD when running on Receptor. But, even with DFD you still need at least the beginning of each note in RAM. If you use a Multi Instrument, you still need lots of RAM.

DFD allows you to use very long samples that would not fit completely in RAM otherwise, but it still uses RAM.

Dan

[SoftJunkie]

here's an update.

i upgraded to 256MB+512MB tonite. there is definitely an improvement. i will most likely bump it up to 2x512MB tomorrow.

in addition, i found that there is a big improvement by disabling KomPakts' DFD.

the combination of the memory upgrade and running exclusively from RAM is very good.

by the way, the KomPakt Fazoili Piano sounds very nice.

finally, while installing the RAM, i took a look at the hard drive. it's a seagate 40GB 7200rpm barracuda ultra ata.