Ableton Forum

hi

since I got the launchpad and added it to my other control surfaces in live,
the LED refresh/update-rate gets very slow. I started thinking about my whole USB-Performance and the priority of the devices in order to achieve better performance. I'm wondering how other musicians handle
their devices.

Probably somebody got suggestions regarding my setup:

I got a notebook with 4 USB-Ports and a 7port USB2.0 hub(active)

My USB-Devices and are:
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USB 2.0:
M-Audio Fast track ultra 8R -> plugged straight in my Notebook USBport

USB 1.1:
2*Launchpad->both connected to an active HUB(2.0)to my notebook
Oxygen8v1->also in the active HUB as third and last device
BCR2000->plugged straight in my Notebook USBport

Logitech access point for wireless mouse and Keyboard (using it without the LT driver and software)
also plugged straight in my Notebook USBport
______________________
Also in live connected as control-surface is the FCB1010,running with a script, but it isn't a midi device.
______________________

What do you suggest? Do you have an idea, which order would be best?Should I get an expresscard with separate dedicated USB 2.0ports which I assign to just one device each? I appreciate all suggestions.
In the Launchpad manual is written that more than one device should run on a active usb-hub, but
to me it sounds like both devices are sharing the transfer-rate, arent they?

thanks

turrican wrote: What do you suggest? Do you have an idea, which order would be best?
Should I get an expresscard with separate dedicated USB 2.0ports which I assign to just one device each?
In the Launchpad manual is written that more than one device should run on a active usb-hub, but
to me it sounds like both devices are sharing the transfer-rate, arent they?

I simply attached a further pci i/o controller card since then my launchpad response immediately and without absence (almost as quick as real-time, not kidding)...

As you already mentioned by the use of an hub both devices will share the transfer-rate therefore I advise an expresscard in cases where a notebook is used. The term "active-hub" hasn't got a benefit concerning the transfer-rate because those hubs also use the "USB-Root-Hub" which is the bottleneck. The most cases where an active hub is suggested are those to avoid an additional power supply.

>> IMHO the simultaneously use of six launchpads is a hoax and will not run flawless especially on notebooks where the capacity of usb-hubs is limited... To eleminate this they have to reduce the data flow<<

Yes! Good to hear it, I'll by an express card usb expansion!
Thank you!