Author |
Topic: Incoming Midi Clock Jitter Display (Read 1950 times) |
|
Innerclock
New Member
MIDI-OX Rules!
Posts: 3
|
 |
Incoming Midi Clock Jitter Display
« on: Oct 24th, 2005, 8:50pm » |
 Quote  Modify
|
When reading incoming Midi Clock, could a window be added that reports Midi Clock stability/jitter? Midi-OX could take a mean/average of clocks received over a certain time period and then display varience. This would be very useful when testing reliability of various serial, usb, pci and Firewire midi interfaces and their drivers when accurate slaving to external Midi Clock is required.
|
|
 IP Logged |
|
|
|
Jamie OConnell
Administrator
 
Gender: 
Posts: 2027
|
|
Re: Incoming Midi Clock Jitter Display
« Reply #1 on: Oct 24th, 2005, 10:03pm » |
Quote Modify
|
Interesting idea... I can guarantee that there is significant jitter associated with all of them, although it is possible to sync to an average.
|
| « Last Edit: Oct 24th, 2005, 10:05pm by Jamie OConnell » |
IP Logged |
--Jamie
Music is its own reward.
|
|
|
Innerclock
New Member
MIDI-OX Rules!
Posts: 3
|
|
Re: Incoming Midi Clock Jitter Display
« Reply #2 on: Oct 24th, 2005, 11:48pm » |
Quote Modify
|
I run a variety of midi software applications but slave all of them off a very accurate midi clock master device. As Midi Clock Slave applications they all are at the mercy of the Midi Interface that drives them and how solid the driver design is as far as clock jitter is concerned. At present, there is no application I can find that reports introduced midi clock jitter. Do you think it might be possible to add this as a Midi-OX feature?
|
|
IP Logged |
|
|
|
Jamie OConnell
Administrator
Gender:
Posts: 2027
|
|
Re: Incoming Midi Clock Jitter Display
« Reply #3 on: Oct 25th, 2005, 3:22pm » |
Quote Modify
|
Maybe. It would also be possible to do this by logging a few seconds of the timestamps that the F8 clocks come in on, copying them into a spreadsheet, and then calculating statistics based on their variance. There are 24 F8's arriving per beat. Timestamps and arrival time (MIDI timing) under Windows is limited to millisecond accuracy.
|
| « Last Edit: Oct 25th, 2005, 3:24pm by Jamie OConnell » |
IP Logged |
--Jamie
Music is its own reward.
|
|
|
|
User Forum ::
Powered by YaBB
Home 
Help 
Search 
Members 
Login 
Register
Reply
Notify of replies
Send Topic
Print