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problems with new TC electronic – Konnekt 24d

Nov 04 2006 | 12:30 pm


I got one of these new tc electronic konnekt 24d

generally really happy, I have however now realised that the audio starts dropping out when using more than 40% CPU (in the DSP status). The machine is pretty much at its limit with other processes in Max. (top in a terminal reports Max utilising 78%, 0-2% idle) no other software in background.

no audio dropouts using build in audio
no audio dropouts with RME Hammerfall-Multiface

changing buffer sizes reduces the problem when smaller buffer sizes are selected (e.g. 64-32)
larger buffer sizes (128 – 2048) increase the problem

tc electronic blames the firewire chipset, but I tried with a couple of PCMCIA firewire cards, with no better result (I would even claim it is worse)

I am able to reproduce the problem with other software, e.g. DP 5 loaded with lots of reverbs etc. So I suspect it is not a Max/MSP problem, but I hope to find others experiencing the same problem (or not).

Has anyone else a konnekt 24d and would be able to check what happens if the machine runs on high CPU?

My setup: G4 Powerbook, 1.67 GHz, 1.5 Gb RAM, (last model with hires screen 15" 1440×960), 100 G HD 7200 rpm, Max/MSP 4.5.7, Jitter 1.5.3



Nov 06 2006 | 5:22 pm

Nov 07 2006 | 4:33 pm

Nov 07 2006 | 10:11 pm

Thank you very much.

I had been expecting this answer … So I guess I will have to find alternative firewire ports (pcmcia) or exchange the unit for something else (RME fireface?). It’s a shame this the konnekt 24 doesn’t work for me, as I liked it and it features adat i/o, which many comparable products don’t have (motu, saffire etc).

To complete the story, if anyone is interested: TC electronic have suggested to ensure the firewire chip of any pcmcia card is from Texas Instruments and to avoid combined firewire/usb cards.

Thanks for your help

Best wishes


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