MidiGAL -- yet another MIDIpal inspired project


#121

t2k > thanks for the list

Quick test tonight @120BPM

Access Virus B OS V4.90: 6.57% (+0.4~0.6 BPM)
E-MU Command Station XL-7, OS V2.0: 1.85% (+0.1 BPM)
Eventide Space firmware 5.0.0[5]b: 1.92%
Roland TR8, firmware 1.20: 0.56% (sometimes, kinda wobbly during the tests)
Roland XP-50, latest CPU/ROM: steady 1.85%


#122

Sequential Prophet 6 clock:

60 BPM: 59.10 / 0.063%
120 BPM: 119.10 / 0.114%
250 BPM: 249.10 / 0.019%

Weird shift down by 0.90 BPM consistent across the range.


#123

Hey there,

A few more tests @120BPM

Cubase 2.83 with MOTU MIDI Flyer parallel interface on an old Pentium120 16MB RAM Compaq 1130T laptop running a fresh install of DOS6.22/Win3.11: 2.085% (+0.1 BPM).
Arturia Beatstep Pro firmware 1.4.0.20: 4.1% [+0.2~0.3]
Arturia Keystep firmware 1.0.1.15: 0.4% [120.6 BPM, best I could do using the Rate knob]


#124

Here’s Maschine Mk II running on a first generation 12" MacBook (1,2 GHz Intel Core M) at 0.7%. It does seem to drift to 119.9 BPM every now and then though.

In all honesty, I am pushing it a bit by running it on a somewhat underpowered laptop…


#125

TR-09 at 1.9%.

Someone please send me a TR-909 to compare! :wink:


#126

Arturia Beatstep Pro – great device functionality but horrible clock stability:


#127

Maybe we should start a website to very visibly shame these vendors into updating their firmware…


#128

http://www.innerclocksystems.com/new%20ics%20litmus.html


#129

@t2k – I really doubt vendors are looking at those sites. What may help is emails/calls to customer support. If enough customers are complaining, vendors can see this is a problem that needs fixing.


#130

@kvitekp Yeah, I agree; that was more a joke than a serious suggestion. :slight_smile:


#131

@t2k it’s so sad that Beatstep Pro has such an unstable clock, I like the device a lot, but cannot really use it because tracks just fall apart and rhythmic delays suck :frowning: Will give them a call.


#132

Btw, if i may chime in, there are distinct sites likes this one:

http://www.innerclocksystems.com/new%20ics%20litmus.html


#133

The innerclock stuff is useless because they don’t give good information on their testing method and how to replicate their results.


#134

With 0.4% clock deviation only, the Keystep is quite good compared to the Beatstep Pro.

Too bad it does not have a real BPM setting and display.


#135

What really pisses me off, is the fact that Arturia does not feel the urge to get rid of this issue with wobbly timing of the Beatstep Pro. There have been no updates on this for months now.


#136

@nightworxx they don’t feel the urge because it appears that most people don’t care about this issue.


#137

Does the BSP still have high jitter if clocked externally, either over USB / MIDI or the clock voltage input?


#138

@DMR yup, just as bad. It appears that BSP measures incoming clock frequency then generates internal clock according to the measured value. This is a common approach for the devices that implement swing and micro step adjustment.


#139

It wouldn’t be too much of an issue, if this device wouldn’t be propagated as a drum trigger sequencer. But some percentage deviation in clock makes tight drums a bad joke…


#140

I absolutely love the clock tester mode.

@t2k I’m noticed that when measuring the Sonic Potions LXR depending on the LXR’s TXF settings I can get anywhere from about 1.6% (txf= anything but ALL) to over 10%(txf set to ALL). When the LXR txf is set to ALL, and I turn up the tempo (>200BPM) I have seen as bad as 20%.

Have you seen the same?