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I tested my HPSPe RayDat on an Intel DP35DP Quad Xeon with midi quest and the jitter and latency results look awsome to me. I did get a sysex error though so if anyone can help me with that it would be good.
I also test the RayDat in Cubase 4 using the midi loop test technique because that is closer to a real world situation.
Out of 100 quantized note events spat out by Cubase to a RayDat midi port and recorded back in on a RayDat Midi port:
Jitter = 0 - 2.0ms
Peak latency = 3.0ms
Best Latency = 1.0ms
Average Latency = 1.52ms
BTW many notes had a jitter of 0ms
MTPAV with same Cubase loop test:
Jitter = 2 - 6ms
Peak latency = 13.0ms
Best Latency = 7.0ms
Average Latency = 10.3ms
Conclusion MTPAV hardware is at fault or drivers are shit!!!!! Anyone know how I can test this?
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MidiTest Results
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================ Info ====================================================
Date: 23 Jan 2009
Time: 09:58:00
AppVersion: 4.6.231
OS: Microsoft Windows XP Professional, Service Pack 3 (Build 2600)
Processor(s): Intel(R) Xeon(R) CPU X3360 @ 2.83GHz
Speed: 2833 MHz
Number: 4
API: DirectMusic
Test type: Simple
Use timestamp: yes
Errors: Error in system exclusive message nr. 1 at position 4800. Expecting 00 04 0A 0F, received 00 04 0E xx.
================ 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: no
Song position pointer: no
Song select: no
Tune request: no
MIDI clock: no
MIDI tick: no
Start: no
Continue: no
Stop: no
Active sensing: no
System reset: no
System exclusive mixed with realtime messages: no
================ Ports ===================================================
MIDI Output: RayDAT Midi Port 2
Description: RME HDSPe RayDAT
Provider: RME
DriverDate: 1-7-2009
DriverVersion: 3.0.7.4
MIDI Input: RayDAT Midi Port 2
Description: RME HDSPe RayDAT
Provider: RME
DriverDate: 1-7-2009
DriverVersion: 3.0.7.4
================ Results Per Message =====================================
MESSAGES Snd Rcv Snd+Rcv
Message TotalTime: 994.79 ms 26122.60 ms 27117.39 ms
Message MaximumTime: 0.10 ms 0.95 ms 0.99 ms
Message MinimumTime: 0.02 ms 0.58 ms 0.62 ms
Message AverageTime: 0.03 ms 0.84 ms 0.87 ms
SysexTime: 4.35 ms 1.13 ms 5.48 ms
SysexAverage: 0.00 ms 0.00 ms 0.00 ms
< 1 ms: 31250 31250 31250
1 - 2 ms: 0 0 0
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: 1
Sysex size: 9999 Sysex passed: 4802
Message latency: 0.87 ms Total time: 310.285 sec
Message jitter: 0.15 ms
Message max deviation: 0.25 ms
================ Results Per Byte ========================================
BYTES
Byte TotalTime: 10000.69 ms
Byte MaximumTime: 0.34 ms
Byte MinimumTime: 0.31 ms
Byte AverageTime: 0.32 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: 84727
Byte latency: 0.32 ms
Byte jitter: 0.00 ms
Byte max deviation: 0.02 ms
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