USB => Scope MIDI

LHong · Post by **LHong** » Thu May 06, 2004 5:25 pm

You need both USB V2.0 complaint (PC and MIDI/other devices) in order to have high-speed USB performance. With USB MIDI from Edirol, it seems well improved latency by the USB device chipset and MIDI driver, nothing to do with the protocol. It should be compatible with any available USB host.

Hope this helps,
LongStudio

On 2004-05-06 17:50, Kymeia wrote:
On 2004-05-06 13:16, LHong wrote:
Keep in mind, in order to use the USB-V2.0 with high-speed capability, the USB-V2.0 host from PC is required. Most of new PC/Mother-board are shipped with 8 ports of USB-V2.0 now, otherwise, with old PC, you might need the add-on PCI card.

Technically, For the MIDI with the used of USB-V2.0 does not need the 480MBS bandwidth but it has the 8 times better latency. For instance, instead of 1 mili second on the USB 1.x, the USB 2.x has the latency about 1/8 of mili second, it's called micro-frame, which is about 125us.

Thanks. My new Pc does have USB 2 capability installed. Are you saying a USB2 port will provide some latency improvements for any USB device - including those made for USB 1, or do they have to be specifically made for the new protocol? (like the new Edirol audi interface)

<font size=-1>[ This Message was edited by: LHong on 2004-05-06 18:37 ]</font>

Kymeia · Post by **Kymeia** » Thu May 06, 2004 5:55 pm

Thankyou.

This looks a good one then:

http://www.dolphinmusic.co.uk/d2/page/s ... 2c373a1c59

LHong · Post by **LHong** » Thu May 06, 2004 5:57 pm

Thanks for your interested, I have the new version for it, just be lazy to update, will do it soon if you want it?
Yes, we have the Web pages, but no, there is nothing related to the audio now, maybe later. Welcome to share it with others at the same download place.

Best regards,
LongStudio

On 2004-05-06 13:58, BingoTheClowno wrote:
LHong, I liked you FFT analyser a lot. Do you have a web page where I could point other people to download it. Have you worked on it lately?

BingoTheClowno · Post by **BingoTheClowno** » Fri May 07, 2004 9:21 am

just be lazy to update, will do it soon if you want it?

Yes, yes we want it

davo · Post by **davo** » Fri May 07, 2004 8:26 pm

This is an interesting read,
http://www.soundonsound.com/sos/sep02/a ... an0902.asp

davo