MIDI Notes - First Note Issues

Cubasis
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1

In a loop, the note from the 1st pattern cut off. It doesn’t sound full or a full gate or the tail from the first note.

2

Only Cubasis and the Screen Recorder App 720p 4 Mbps 60fps are running.

It is one track.
4 bars.
One plug-in Microwave.

The problem is with every instrument.
It has nothing to do with Microwave or Model 15 or a specific plug-in.

3rd video

The grid is OFF.
But you can still see a grid.

Every first note is cut off (see also 4th video)

If you move the note and it does not run properly, it is normal.
That is not the problem.

But as you can see at 0:32, it takes many loops until the note catches
and it no longer runs properly.

It’s more generative and it is almost silent between.
Nothing has been changed in the plug-in here or on the tablet.
Only moving the note, what you see on the screen.

It is the same with all instruments and always with the first note.
See also 4th video, Model 15.

If you move the note to the right in the grid, it plays more normally.
The problem only seems to occur in the first 3 grids.

As you can see in the video, the note is not cuted at the end.
So it has nothing to do with the envelope being interrupted.

It is also interesting to see that the note length sound changes
when zooming.

.
.

4th video

Only Cubasis and the Screen Recorder App 720p 4 Mbps 60fps are running.

It is one track.
4 bars.
One plug-in Model 15.

The problem is with every instrument.
It has nothing to do with Model 15 or a specific plug-in.

The grid is OFF.
You can still see a grid.

There are two notes, same length.

At 0:09 the notes are moved to the 2nd grid.

At 0:20 and at 1:31 the first note is cut off.
It doesn’t sound like the 2nd note.
It sounds shorter.

At 0:43 nothing is overlapped that affects the envelope.
Changing the note length does not change anything.

The last note is also not cuted at the bar.

There is enough time for the notes to regenerate after the move.
When moving to the 3rd grid, the first note will be sound as it should be.

At 1:38 there is a dropout again (see other topic Midi Clock Issues),
nothing was moved on the iPad until 1:41.

At 1:49 you can see that when moving to the 3rd grid, the note length is aligned again.

I change the grid to 32 and show that the notes have the same length.

INFORMATION

  • Operating System
    System : iOS 16.2
    System Build : 20C65
    Multitasking Support : YES
    Kernel : Darwin 22.2.0
    Kernel Build : 18446744073709551615
    System Boot : 2025/06/08 12:26:48
    Uptime : 06h 49m 23s

  • Device Information
    Device : iPad
    Device ID : iPad7,5
    Model : J71bAP
    Name : iPad
    LocalizedModel : iPad
    Hostname :

  • CPU Information
    CPU Model : Apple A10
    GPU Model : PowerVR Series7XT Plus
    Core Number : 2
    CPU Frequency : 2.31 GHz
    TB Frequency : GHz
    L1 Cache Size : 64.0 KB
    L1D Cache Size : 64.0 KB
    L2 Cache Size : 3.0 MB
    Byteorder : 1234
    Cacheline : 128

  • Disk:
    Total Disk Space: 119.2 GB
    Disk Free: 85.7 GB

  • Hardware Features
    Display Resolution : 1536 x 2048
    Pixel Density : 264 ppi
    Battery Voltage : 3.73 V
    Battery Capacity : 8820 mAh
    Rear Camera : 8 MP
    Front Camera : 1.2 MP
    Wi-Fi : 802.11 a/b/g/n/ac
    Bluetooth : v4.2,A2DP,EDR

3

Hi @BinaryTubes

Here I’ve copied my answer from your other topic (which seems similar)

Did I understand correctly that you’re using the Microwave AUv3 plug-in with Cubasis? If so, there’s no need to use MIDI Clock at all.

Instead, please follow the steps for using AUv3 instruments in Cubasis, as demonstrated in our “Getting Started with Cubasis” tutorial (linked below).

In addition, I gave cycle recording a short check with Cubasis on the iPad Mini 6 using the external SynthMaster AUv3 plug-in. Here are two example clips:

Example 1 - Arpeggiator

Example 2 - Synth Bass Sequence

You may give it a check to choose higher latency value (located under Setup/Audio) to see if it helps resolving the problem.

Best,
Lars

4

So it might be similar but it’s slightly different.

The video clearly shows that it is a problem with playing the first note.

In contrast to the problem with the MIDI click, this occurs every time the pattern starts after the loop and not randomly.

5

Hi @BinaryTubes

I’d love to help you out, but unfortunately, I haven’t been able to reproduce the issue (as I mentioned in my previous reply and demonstrated in the two videos).

Here are a few additional comments:

MIDI Clock is often used to keep hardware devices like synthesizers, drum machines, samplers, and sequencers in sync when making music or performing live.

If you use the internal instruments of Cubasis, or third-party AUv3 instruments or similar, using MIDI Clock is not required at all.

Below, please find links to the appropriate chapters on how to add and use internal and external AUv3 instruments in Cubasis.

I suggest starting with an empty project and following the steps shown in the tutorial. Before proceeding, please try selecting a lower Latency value (found under Setup > Audio > Latency) and set Multi-core Processing to its default value.

In addition, our Getting Started with Cubasis tutorial is a great way to quickly dive into the app and learn how to use it easily and effectively.

Hope that helps.

Best,
Lars

Adding MIDI Instruments

Using AUv3 Instruments