*the best midi interface search... can you help?

[GoldMember]

Originally Posted by TS-12

Okay, got midilink working today. figured out it only works on my pc when all the other midi devices/drivers are uninstalled.
And guess what?
The midi timing is as just as bad as thru USB-MIDI interfaces, or direct midi over USB. (I tested it on Motif-ES and Korg TR-rack.)

tested with miditest? please upload results.
could be your RS-232 interface. (any pci/pcie card closer to the cpu gives better results, find a mobo with included rs-232 or other brand/model.)
could be the synths.
could be your PC PSU, not giving clean DC., try a low electric noise & low ripple PSU like Cooler Master Silent Pro M700, or the Thermaltake EVO or the newer TR2.
also wont hurt an AC power cleaner/conditioner/regulator with shielded power cables.
With and without power conditioner and Voltage Regulator

Akai MPC 1000 has 1-2 msec of timing inconsistency.
http://www.gearslutz.com/board/4273882-post103.html

Virus Kb/Atari
vs.
S760/Atari
vs.
Virus/Logic (Unitor8usb)
vs.
S760/Logic
http://www.gearslutz.com/board/4277065-post107.html

...
http://www.gearslutz.com/board/4383893-post74.html
MidiLink results just in from the manufacturer
these results kick USB's ass for speed, check out the minimum time, 0.00ms!! with only the odd bum message at over 2ms
99.9% of the bytes get out in less than 1ms. . this is looking tight! (compared to USB)


MESSAGES _______________Snd _____Rcv _______Snd+Rcv
Message MaximumTime:...... 1.98 ms.... 2.39 ms.... 2.40 ms
Message MinimumTime: .......0.01 ms.... 0.00 ms.... 0.01 ms
Message AverageTime: .......0.01 ms.... 0.30 ms.... 0.31 ms

Results Per Byte

< 1 ms: 31189
1 - 2 ms: 61
2 - 3 ms: 0
3 - 4 ms: 0

Byte latency: 0.12 ms
Byte jitter: 0.19 ms
Byte max deviation: 1.87 ms

[thrustman]

I have an antiquated motu midi flyer that is parallel port conected. Is parallel faster than usb?

[TS-12]

Originally Posted by thrustman

I have an antiquated motu midi flyer that is parallel port conected. Is parallel faster than usb?

In theory Yes. Data packets are moved parallel in groups, as opposed to serial as USB, data moves one bit after the other.

[TS-12]

Originally Posted by GoldMember

tested with miditest? please upload results.
could be your RS-232 interface. (any pci/pcie card closer to the cpu gives better results, find a mobo with included rs-232 or other brand/model.)
could be the synths.
could be your PC PSU, not giving clean DC., try a low electric noise & low ripple PSU like Cooler Master Silent Pro M700, or the Thermaltake EVO or the newer TR2.
also wont hurt an AC power cleaner/conditioner/regulator with shielded power cables.
With and without power conditioner and Voltage Regulator

Akai MPC 1000 has 1-2 msec of timing inconsistency.
http://www.gearslutz.com/board/4273882-post103.html

Virus Kb/Atari
vs.
S760/Atari
vs.
Virus/Logic (Unitor8usb)
vs.
S760/Logic
http://www.gearslutz.com/board/4277065-post107.html

...
http://www.gearslutz.com/board/4383893-post74.html
MidiLink results just in from the manufacturer
these results kick USB's ass for speed, check out the minimum time, 0.00ms!! with only the odd bum message at over 2ms
99.9% of the bytes get out in less than 1ms. . this is looking tight! (compared to USB)


MESSAGES _______________Snd _____Rcv _______Snd+Rcv
Message MaximumTime:...... 1.98 ms.... 2.39 ms.... 2.40 ms
Message MinimumTime: .......0.01 ms.... 0.00 ms.... 0.01 ms
Message AverageTime: .......0.01 ms.... 0.30 ms.... 0.31 ms

Results Per Byte

< 1 ms: 31189
1 - 2 ms: 61
2 - 3 ms: 0
3 - 4 ms: 0

Byte latency: 0.12 ms
Byte jitter: 0.19 ms
Byte max deviation: 1.87 ms

I don't know.. I don't think that for such a simple issue we have to pay attention to such small details.
what's the next thing you gonna tell me? to get my own electric power plant for my studio?

[GoldMember]

Originally Posted by TS-12

I don't know.. I don't think that for such a simple issue we have to pay attention to such small details.
what's the next thing you gonna tell me? to get my own electric power plant for my studio?

you guessed right... LOL
a better PSU wont hurt the PC.

my pc performace increases 10%, measured with passmark software.

my i7 920 can make 4000KB/s @ 2.8ghz, with winrar benchmark test.

returning to midi:
1minute = 60secs
1second = 1000ms.
60secs = 60.000ms

60000ms / 120bpm = 500ms per beat.
250ms per 1/2
125ms - 1/4 note
62.5ms - 1/8 note
31.25ms - 1/16 note
15,625ms - 1/32 note
7,8125ms - 1/64 note

2ms timing error in the synth
+ 2ms error in the Midi interface
its annoing.

[JL1]

Originally Posted by GoldMember

1 sec = 1000ms / 120bpm = 8.33ms per 1/4 note @ 120bpm.

Dude......what are you smoking ????? Your math is way off here.
It should be 500ms per 1/4 note @ 120 bpm.
BPM is "beats Per Minute" not "Beats Per Second".

lol

Anyhoo,
I was enjoying reading this thread up till now. I wonder how you would go about testing the Terrasoniq Midi ONE as it has only 1 midi connector which can be used as either input or output.....so would be kinda hard to connect the input to the output as required by the MidiTest utility.

[GoldMember]

LOL.

New MIDI posibilities... PC to PC or PC to MAC with rtpMIDI or ipMIDI
Software
www.nerds.be

Hardware IP to MIDI Box...
KissBox the Network Answer

[TS-12]

I think I found the problem.
since I am moving to mac, I tried in Logic (on MAC) to send 16 midi channels to Fantom-G, and all MIDI tracks are perfectly on time!! Tried it from logic to Korg Tr-rack, also, all tracks perfectly in time!!
At first I couldn't believe this, so i stacked even more notes, and they were all on time, just like in hardware.
I guess this is Windows 7 issue.
even though I wasted some money buying different midi interfaces suggested by various members of this forum, I'm glad that the midi timing horror is over for me )))

[offshore]

Originally Posted by GoldMember

www.nerds.be

actually this should be Nerds.de audio & midi - ipMIDI - LoopBe1 - LoopBe30

[GoldMember]

Originally Posted by space2012

--------------------------------------------------------------------------
MidiTest Results: RME HDSP9632 pci
--------------------------------------------------------------------------
MME with TimeStamp active:
Message latency: 0.58 ms
Message jitter: 2.77 ms
Message max deviation: 253.67 ms

vs.
Linux TangoStudio1.1 64Bit with Wine "W7 Emulation" ALSA Drivers "MME"
CPU meter gets high.. 25%
--------------------------------------------------------------------------
MidiTest Results
--------------------------------------------------------------------------
================ Info ====================================================

Date: 23 Aug 2011
Time: 01:31:33
AppVersion: 4.9.243
OS: Professional, Service Pack 1 (Build 7601)
Processor(s): Intel(R) Pentium(R) 4 CPU 2.40GHz
Speed: 1600 MHz
Number: 8
API: MultiMedia Extensions (MME)
Test type: Advanced
Use timestamp: yes
Errors: None



================ Tested Message Types ====================================

Note off: yes
Note on: yes
Key aftertouch: yes
Controller: yes
Program change: yes
Channel aftertouch: yes
Pitchbend: yes
System exclusive: no
MIDI time code quarter frame: no
Song position pointer: no
Song select: no
Tune request: no
MIDI clock: no
MIDI tick: no
Start: yes
Continue: yes
Stop: yes
Active sensing: no
System reset: no
System exclusive mixed with realtime messages: no

================ Ports ===================================================

MIDI Output: Hammerfall DSP - HDSP MIDI 1
Description: Not available
Provider: Not available
DriverDate: Not available
DriverVersion: Not available


MIDI Input: Hammerfall DSP - HDSP MIDI 1
Description: Not available
Provider: Not available
DriverDate: Not available
DriverVersion: Not available



================ Results Per Message =====================================

MESSAGES Snd Rcv Snd+Rcv

Message TotalTime: 253.33 ms 22140.55 ms 22393.87 ms
Message MaximumTime: 0.26 ms 1.67 ms 1.68 ms
Message MinimumTime: -1.36 ms 0.00 ms -1.36 ms
Message AverageTime: 0.01 ms 0.71 ms 0.72 ms
SysexTime: 0.00 ms 0.00 ms 0.00 ms
SysexAverage: 0.00 ms 0.00 ms 0.00 ms

< 1 ms: 31250 23547 23340
1 - 2 ms: 0 7703 7910
2 - 3 ms: 0 0 0
3 - 4 ms: 0 0 0
4 - 5 ms: 0 0 0
5 - 10 ms: 0 0 0
10 - 20 ms: 0 0 0
20 - 50 ms: 0 0 0
50 - 100 ms: 0 0 0
> 100 ms: 0 0 0

Message count: 31250 Sysex count: 0
Sysex size: 0 Sysex passed: 0

Message latency: 0.72 ms Total time: 50.795 sec
Message jitter: 0.42 ms
Message max deviation: 2.07 ms

================ Results Per Byte ========================================

BYTES

Byte TotalTime: 8447.71 ms
Byte MaximumTime: 1.02 ms
Byte MinimumTime: -0.45 ms
Byte AverageTime: 0.27 ms

< 1 ms: 31248
1 - 2 ms: 2
2 - 3 ms: 0
3 - 4 ms: 0
4 - 5 ms: 0
5 - 10 ms: 0
10 - 20 ms: 0
20 - 50 ms: 0
50 - 100 ms: 0
> 100 ms: 0

Byte count: 82433

Byte latency: 0.27 ms
Byte jitter: 0.15 ms
Byte max deviation: 0.75 ms

[GoldMember]

--------------------------------------------------------------------------
MidiTest Results
--------------------------------------------------------------------------



================ Info ====================================================

Date: 23 Aug 2011
Time: 01:40:16
AppVersion: 4.9.243
OS: Microsoft Windows XP Professional, Service Pack 3 (Build 2600)
Processor(s): Intel(R) Pentium(R) 4 CPU 2.40GHz
Speed: 1600 MHz
Number: 8
API: MultiMedia Extensions (MME)
Test type: Advanced
Use timestamp: yes
Errors: None



================ Tested Message Types ====================================

Note off: yes
Note on: yes
Key aftertouch: yes
Controller: yes
Program change: yes
Channel aftertouch: yes
Pitchbend: yes
System exclusive: no
MIDI time code quarter frame: no
Song position pointer: no
Song select: no
Tune request: no
MIDI clock: no
MIDI tick: no
Start: yes
Continue: yes
Stop: yes
Active sensing: no
System reset: no
System exclusive mixed with realtime messages: no



================ Ports ===================================================

MIDI Output: Hammerfall DSP - HDSP MIDI 1
Description: Not available
Provider: Not available
DriverDate: Not available
DriverVersion: Not available


MIDI Input: Hammerfall DSP - HDSP MIDI 1
Description: Not available
Provider: Not available
DriverDate: Not available
DriverVersion: Not available



================ Results Per Message =====================================

MESSAGES Snd Rcv Snd+Rcv

Message TotalTime: 249.31 ms 24039.76 ms 24289.07 ms
Message MaximumTime: 0.27 ms 1.91 ms 1.91 ms
Message MinimumTime: -1.43 ms 0.00 ms -1.43 ms
Message AverageTime: 0.01 ms 0.77 ms 0.78 ms
SysexTime: 0.00 ms 0.00 ms 0.00 ms
SysexAverage: 0.00 ms 0.00 ms 0.00 ms

< 1 ms: 31250 21897 21664
1 - 2 ms: 0 9353 9586
2 - 3 ms: 0 0 0
3 - 4 ms: 0 0 0
4 - 5 ms: 0 0 0
5 - 10 ms: 0 0 0
10 - 20 ms: 0 0 0
20 - 50 ms: 0 0 0
50 - 100 ms: 0 0 0
> 100 ms: 0 0 0

Message count: 31250 Sysex count: 0
Sysex size: 0 Sysex passed: 0

Message latency: 0.78 ms Total time: 50.616 sec
Message jitter: 0.43 ms
Message max deviation: 2.21 ms



================ Results Per Byte ========================================

BYTES

Byte TotalTime: 9242.96 ms
Byte MaximumTime: 1.26 ms
Byte MinimumTime: -0.48 ms
Byte AverageTime: 0.30 ms

< 1 ms: 31181
1 - 2 ms: 69
2 - 3 ms: 0
3 - 4 ms: 0
4 - 5 ms: 0
5 - 10 ms: 0
10 - 20 ms: 0
20 - 50 ms: 0
50 - 100 ms: 0
> 100 ms: 0

Byte count: 82311

Byte latency: 0.30 ms
Byte jitter: 0.17 ms
Byte max deviation: 0.96 ms

[GoldMember]

--------------------------------------------------------------------------
MidiTest Results
--------------------------------------------------------------------------



================ Info ====================================================

Date: 23 Aug 2011
Time: 01:45:27
AppVersion: 4.9.243
OS: Professional, Service Pack 2 (Build 6002)
Processor(s): Intel(R) Pentium(R) 4 CPU 2.40GHz
Speed: 1600 MHz
Number: 8
API: MultiMedia Extensions (MME)
Test type: Advanced
Use timestamp: yes
Errors: None



================ Tested Message Types ====================================

Note off: yes
Note on: yes
Key aftertouch: yes
Controller: yes
Program change: yes
Channel aftertouch: yes
Pitchbend: yes
System exclusive: no
MIDI time code quarter frame: no
Song position pointer: no
Song select: no
Tune request: no
MIDI clock: no
MIDI tick: no
Start: yes
Continue: yes
Stop: yes
Active sensing: no
System reset: no
System exclusive mixed with realtime messages: no



================ Ports ===================================================

MIDI Output: Hammerfall DSP - HDSP MIDI 1
Description: Not available
Provider: Not available
DriverDate: Not available
DriverVersion: Not available


MIDI Input: Hammerfall DSP - HDSP MIDI 1
Description: Not available
Provider: Not available
DriverDate: Not available
DriverVersion: Not available



================ Results Per Message =====================================

MESSAGES Snd Rcv Snd+Rcv

Message TotalTime: 256.71 ms 19136.04 ms 19392.74 ms
Message MaximumTime: 0.03 ms 1.81 ms 1.82 ms
Message MinimumTime: -1.06 ms 0.00 ms -1.06 ms
Message AverageTime: 0.01 ms 0.61 ms 0.62 ms
SysexTime: 0.00 ms 0.00 ms 0.00 ms
SysexAverage: 0.00 ms 0.00 ms 0.00 ms

< 1 ms: 31250 26122 25919
1 - 2 ms: 0 5128 5331
2 - 3 ms: 0 0 0
3 - 4 ms: 0 0 0
4 - 5 ms: 0 0 0
5 - 10 ms: 0 0 0
10 - 20 ms: 0 0 0
20 - 50 ms: 0 0 0
50 - 100 ms: 0 0 0
> 100 ms: 0 0 0

Message count: 31250 Sysex count: 0
Sysex size: 0 Sysex passed: 0

Message latency: 0.62 ms Total time: 51.036 sec
Message jitter: 0.37 ms
Message max deviation: 1.68 ms



================ Results Per Byte ========================================

BYTES

Byte TotalTime: 7259.09 ms
Byte MaximumTime: 1.17 ms
Byte MinimumTime: -0.53 ms
Byte AverageTime: 0.23 ms

< 1 ms: 31244
1 - 2 ms: 6
2 - 3 ms: 0
3 - 4 ms: 0
4 - 5 ms: 0
5 - 10 ms: 0
10 - 20 ms: 0
20 - 50 ms: 0
50 - 100 ms: 0
> 100 ms: 0

Byte count: 82419

Byte latency: 0.23 ms
Byte jitter: 0.14 ms
Byte max deviation: 0.94 ms

[GoldMember]

--------------------------------------------------------------------------
MidiTest Results
--------------------------------------------------------------------------



================ Info ====================================================

Date: 23 Aug 2011
Time: 01:47:42
AppVersion: 4.9.243
OS: Microsoft Windows 95
Processor(s): Intel(R) Pentium(R) 4 CPU 2.40GHz
Speed: 2668 MHz
Number: 8
API: MultiMedia Extensions (MME)
Test type: Advanced
Use timestamp: yes
Errors: None



================ Tested Message Types ====================================

Note off: yes
Note on: yes
Key aftertouch: yes
Controller: yes
Program change: yes
Channel aftertouch: yes
Pitchbend: yes
System exclusive: no
MIDI time code quarter frame: no
Song position pointer: no
Song select: no
Tune request: no
MIDI clock: no
MIDI tick: no
Start: yes
Continue: yes
Stop: yes
Active sensing: no
System reset: no
System exclusive mixed with realtime messages: no



================ Ports ===================================================

MIDI Output: Hammerfall DSP - HDSP MIDI 1
Description: Not available
Provider: Not available
DriverDate: Not available
DriverVersion: Not available


MIDI Input: Hammerfall DSP - HDSP MIDI 1
Description: Not available
Provider: Not available
DriverDate: Not available
DriverVersion: Not available



================ Results Per Message =====================================

MESSAGES Snd Rcv Snd+Rcv

Message TotalTime: 256.12 ms 28591.51 ms 28847.63 ms
Message MaximumTime: 0.03 ms 1.94 ms 1.95 ms
Message MinimumTime: -1.42 ms 0.00 ms -1.42 ms
Message AverageTime: 0.01 ms 0.91 ms 0.92 ms
SysexTime: 0.00 ms 0.00 ms 0.00 ms
SysexAverage: 0.00 ms 0.00 ms 0.00 ms

< 1 ms: 31250 17528 17339
1 - 2 ms: 0 13722 13911
2 - 3 ms: 0 0 0
3 - 4 ms: 0 0 0
4 - 5 ms: 0 0 0
5 - 10 ms: 0 0 0
10 - 20 ms: 0 0 0
20 - 50 ms: 0 0 0
50 - 100 ms: 0 0 0
> 100 ms: 0 0 0

Message count: 31250 Sysex count: 0
Sysex size: 0 Sysex passed: 0

Message latency: 0.92 ms Total time: 51.102 sec
Message jitter: 0.47 ms
Message max deviation: 2.34 ms



================ Results Per Byte ========================================

BYTES

Byte TotalTime: 11063.29 ms
Byte MaximumTime: 1.30 ms
Byte MinimumTime: -0.71 ms
Byte AverageTime: 0.35 ms

< 1 ms: 31118
1 - 2 ms: 132
2 - 3 ms: 0
3 - 4 ms: 0
4 - 5 ms: 0
5 - 10 ms: 0
10 - 20 ms: 0
20 - 50 ms: 0
50 - 100 ms: 0
> 100 ms: 0

Byte count: 82409

Byte latency: 0.35 ms
Byte jitter: 0.19 ms
Byte max deviation: 1.06 ms

[GoldMember]

--------------------------------------------------------------------------
MidiTest Results
--------------------------------------------------------------------------



================ Info ====================================================

Date: 23 Aug 2011
Time: 01:52:21
AppVersion: 4.12.252
OS: Microsoft Windows 95
Processor(s): Intel(R) Pentium(R) 4 CPU 2.40GHz
Speed: 2668 MHz
Number: 8
API: MultiMedia Extensions (MME)
Test type: Advanced
Use timestamp: yes
Errors: 0
Last error: None



================ Tested Message Types ====================================

Note off: yes
Note on: yes
Key aftertouch: yes
Controller: yes
Program change: yes
Channel aftertouch: yes
Pitchbend: yes
System exclusive: no
MIDI time code quarter frame: no
Song position pointer: no
Song select: no
Tune request: no
MIDI clock: no
MIDI tick: no
Start: yes
Continue: yes
Stop: yes
Active sensing: no
System reset: no
System exclusive mixed with realtime messages: no



================ Ports ===================================================

MIDI Output: Hammerfall DSP - HDSP MIDI 1
Description: Not available
Provider: Not available
DriverDate: Not available
DriverVersion: Not available


MIDI Input: Hammerfall DSP - HDSP MIDI 1
Description: Not available
Provider: Not available
DriverDate: Not available
DriverVersion: Not available



================ Results Per Message =====================================

MESSAGES Snd Rcv Snd+Rcv

Message TotalTime: 262.93 ms 19778.69 ms 20041.62 ms
Message MaximumTime: 0.03 ms 1.65 ms 1.66 ms
Message MinimumTime: 0.00 ms 0.00 ms 0.00 ms
Message AverageTime: 0.01 ms 0.63 ms 0.64 ms
SysexTime: 0.00 ms 0.00 ms 0.00 ms
SysexAverage: 0.00 ms 0.00 ms 0.00 ms

< 1 ms: 31250 25781 25613
1 - 2 ms: 0 5469 5637
2 - 3 ms: 0 0 0
3 - 4 ms: 0 0 0
4 - 5 ms: 0 0 0
5 - 10 ms: 0 0 0
10 - 20 ms: 0 0 0
20 - 50 ms: 0 0 0
50 - 100 ms: 0 0 0
> 100 ms: 0 0 0

Message count: 31250 Sysex count: 0
Sysex size: 0 Sysex passed: 0

Message latency: 0.64 ms Total time: 50.995 sec
Message jitter: 0.38 ms
Message max deviation: 1.01 ms



================ Results Per Byte ========================================

BYTES

Byte TotalTime: 7505.28 ms
Byte MaximumTime: 1.01 ms
Byte MinimumTime: 0.00 ms
Byte AverageTime: 0.24 ms

< 1 ms: 31249
1 - 2 ms: 1
2 - 3 ms: 0
3 - 4 ms: 0
4 - 5 ms: 0
5 - 10 ms: 0
10 - 20 ms: 0
20 - 50 ms: 0
50 - 100 ms: 0
> 100 ms: 0

Byte count: 82369

Byte latency: 0.24 ms
Byte jitter: 0.14 ms
Byte max deviation: 0.77 ms

[TS-12]

those results you get from the various audio tests like latency etc, doesn't mean much. they are perhaps useless after all.

It doesn't monitor the notes and data timing or jitter going out to multiple channels.

if those testers would send 5 notes per channel across atleast 8 midi channels and would show how the timing varies, than it would be meaningful.

even in windows 7 if you send one or two midi channels out to hardware the latency and jitter won't be noticeable. but if you have a few notes at the same time at alot (like 6+ midi channels), that you can clearly hear the different notes varying in time.

If you are on win7: IT DOESN'T MATTER WHAT HARDWARE YOU USE, the sloppy midi out timing when alot of notes are going out at the same time is WINDOWS 7's problem NOT midi hardware!

You can try to get you midi timing even tighter if you are on MAC or XP, but those tiny milliseconds differences will not be noticeable to most people

[TS-12]

Some more discoveries people made here: (but still no solutions to windows 7 extremely sloppy midi out.) http://www.velvetacidchrist.com/2010...e-a-grim-tale/

[GoldMember]

Originally Posted by TS-12

Some more discoveries people made here: (but still no solutions to windows 7 extremely sloppy midi out.)

MIDI-In seems solved.
"Eliminating the jitter from the MIDI recording process allows the feel and magic of the original performance to finally be accurately captured. "
Advanced Pro Gear - Home

[Funkstar De Luxe]

Windows 7 x64. 32bit DAW, so 32bit testing app.
EMU-1820m PCI.


--------------------------------------------------------------------------
MidiTest Results
--------------------------------------------------------------------------



================ Info ====================================================

Date: 29 Jan 2012
Time: 10:30:13
AppVersion: 4.12.252
OS: Professional, Service Pack 1 (Build 7601)
Processor(s): Intel(R) Core(TM)2 Quad CPU Q6600 @ 2.40GHz
Speed: 2400 MHz
Number: 4
API: MultiMedia Extensions (MME)
Test type: Advanced
Use timestamp: yes
Errors: 0
Last error: None



================ Tested Message Types ====================================

Note off: yes
Note on: yes
Key aftertouch: yes
Controller: yes
Program change: yes
Channel aftertouch: yes
Pitchbend: yes
System exclusive: yes
MIDI time code quarter frame: yes
Song position pointer: yes
Song select: yes
Tune request: yes
MIDI clock: yes
MIDI tick: no
Start: yes
Continue: yes
Stop: yes
Active sensing: yes
System reset: yes
System exclusive mixed with realtime messages: no



================ Ports ===================================================

MIDI Output: E-DSP MIDI Port 2 [AC00]
Description: E-MU E-DSP Audio Processor (WDM)
Provider: Creative
DriverDate: 3-20-2008
DriverVersion: 6.0.1.1244


MIDI Input: E-DSP MIDI Port 2 [AC00]
Description: E-MU E-DSP Audio Processor (WDM)
Provider: Creative
DriverDate: 3-20-2008
DriverVersion: 6.0.1.1244



================ Results Per Message =====================================

MESSAGES Snd Rcv Snd+Rcv

Message TotalTime: 757.94 ms 25661.10 ms 26419.04 ms
Message MaximumTime: 0.08 ms 1.72 ms 1.74 ms
Message MinimumTime: 0.00 ms 0.00 ms 0.00 ms
Message AverageTime: 0.02 ms 0.82 ms 0.85 ms
SysexTime: 16.07 ms 3222.56 ms 3238.62 ms
SysexAverage: 0.00 ms 0.32 ms 0.32 ms

< 1 ms: 31250 13177 12180
1 - 2 ms: 0 18073 19070
2 - 3 ms: 0 0 0
3 - 4 ms: 0 0 0
4 - 5 ms: 0 0 0
5 - 10 ms: 0 0 0
10 - 20 ms: 0 0 0
20 - 50 ms: 0 0 0
50 - 100 ms: 0 0 0
> 100 ms: 0 0 0

Message count: 31250 Sysex count: 160
Sysex size: 9999 Sysex passed: 9999

Message latency: 0.85 ms Total time: 54.109 sec
Message jitter: 0.51 ms
Message max deviation: 0.89 ms



================ Results Per Byte ========================================

BYTES

Byte TotalTime: 9580.23 ms
Byte MaximumTime: 0.74 ms
Byte MinimumTime: 0.00 ms
Byte AverageTime: 0.31 ms

< 1 ms: 31250
1 - 2 ms: 0
2 - 3 ms: 0
3 - 4 ms: 0
4 - 5 ms: 0
5 - 10 ms: 0
10 - 20 ms: 0
20 - 50 ms: 0
50 - 100 ms: 0
> 100 ms: 0

Byte count: 78978

Byte latency: 0.31 ms
Byte jitter: 0.16 ms
Byte max deviation: 0.43 ms

[Disease Factory]

http://www.gearslutz.com/board/7499611-post12.html

Read this to get tight midi in windows 7, pci only. usb is a joke on all windows machines.

[GoldMember]

i could run MidiTest v4.12 32-Bit in MAC OSX 10.6.7 with PlayOnMac....

same RME hdsp9632, same Board, PSU, etc...
it was:
Latency: 1ms
Jitter: 0.something,
Deviation: 1ms

...about W7 sloppy Parallel Performance...
the easy way... is to have 1 interface per Midi channel...
instead of a 8x8 midi interface, 8 midi interfaces....
more expensive, yes...
expansion chasis are needed, some drivers do not support more than 3 of the same at same time.
but doable
having another PC with Midi LAN, or real midi interfaces slaved by MTC.
to use CV when possible-.
the do it all interface, DAW seems too much...

[fito_88]

i dont understand how this latency numbers are calculated and if all the these figures in this thread r trusted or not , i dont even know on what buffer size r u testing these interfaces

[dscoyne]

First, I am sorry to invade your thread, but I have a related question. I would have posted it as a new thread, but as a newbie, I am unable to find any place to click to post a new thread, and no instructions as to where that might be. (Clicking on New Threads merely goes to the already posted new threads, and Thread Starter is not live.)

I need to be able to use more than 16 MIDI channels, which is what is available if your MIDI interface has only one port. The need for this is not because I want to connect multiple instruments, but because I am using an arranging program, Jammer Pro, which creates more than 16 channels needed in some arrangements.

I am currently using an M-Audio Fast Track Pro, but I also have a Roland Edirol PCR-300, which I am not presently using. I'm wondering if I can connect that in some way, which together with my single port Fast Track Pro will allow me to use 2 Midi In-Out ports, thus to create 32 Midi channels?

Also, if anyone can tell me how to post a new thread, that would be great. Thanks.......Don

[surfacepatterns]

Hi,

I don't use the MIDITest program referenced in this thread (I'm a Linux audio developer), but there is a similar program that works with the JACK Audio Connection Kit 2 to measure latency and jitter. I'd like to post some results that were sent to me about a year ago or so in order to show MIDI latency/jitter results obtained through JACK on Linux.

The first is with a Swissonic USB MIDI device. USB MIDI jitter is notoriously bad on Windows; so, given that USB 2.0 has an inherent 1 millisecond of jitter (USB frame rate), this is probably as good as it gets:

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$ jackd --sync -Xalsarawmidi -dalsa -r48000 -p256

$ jack_midi_latency_test -m 3 -s 8192 -t 5 "system:USB Device
0x170b:0x11 MIDI 1 out" "system:USB Device 0x170b:0x11 MIDI 1 in"
Reported out-port latency: 5.33-5.33 ms (256-256 frames)
Reported in-port latency: 5.33-5.33 ms (256-256 frames)
Average latency: 12.39 ms (594.69 frames)
Lowest latency: 11.85 ms (569 frames)
Highest latency: 12.94 ms (621 frames)
Peak MIDI jitter: 1.08 ms (52 frames)
Average MIDI jitter: 0.25 ms (11.46 frames)

Jitter Plot:
0.0 - 0.1 ms: 1778
0.1 - 0.2 ms: 1469
0.2 - 0.3 ms: 1693
0.3 - 0.4 ms: 1568
0.4 - 0.5 ms: 1591
0.5 - 0.6 ms: 93

Latency Plot:
11.8 - 11.9 ms: 112
11.9 - 12.0 ms: 857
12.0 - 12.1 ms: 706
12.1 - 12.2 ms: 874
12.2 - 12.3 ms: 836
12.3 - 12.4 ms: 861
12.4 - 12.5 ms: 887
12.5 - 12.6 ms: 663
12.6 - 12.7 ms: 839
12.7 - 12.8 ms: 797
12.8 - 12.9 ms: 745
12.9 - 13.0 ms: 15

Messages sent: 8192
Messages received: 8192

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Personally, I've seen MIDI jitter results for serial MIDI ports on Windows that were much worse.

Here are results for a TERRATEC EWX24/96, which, as you would expect for a PCI device, are noticeably better that the USB results:

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$ jackd --sync -Xalsarawmidi -dalsa -r48000 -p256

$ jack_midi_latency_test -m 3 -s 8192 -t 5 "system:TerraTec EWX24/96
MIDI out" "system:TerraTec EWX24/96 MIDI in"
Reported out-port latency: 5.33-5.33 ms (256-256 frames)
Reported in-port latency: 5.33-5.33 ms (256-256 frames)
Average latency: 11.06 ms (530.95 frames)
Lowest latency: 11.04 ms (530 frames)
Highest latency: 11.10 ms (533 frames)
Peak MIDI jitter: 0.06 ms (3 frames)
Average MIDI jitter: 0.00 ms (0.02 frames)

Jitter Plot:
0.0 - 0.1 ms: 8192

Latency Plot:
11.0 - 11.1 ms: 8189
11.1 - 11.2 ms: 3

Messages sent: 8192
Messages received: 8192

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I believe these results are the best I've seen thus far.

Disclaimer: I wrote the 'alsarawmidi' driver that's being used to handle MIDI input/output for JACK 2 in the above tests, and I also wrote `jack_midi_latency_test`, the program used to measure latency and jitter. Both the driver and the program are open source, so if you think that the results are incorrect, feel free to look through the source and point out the errors.

Thanks,

--
Devin