Convolution Reverb glitch/timing Bug.

[lalalandsynth]

Another test , using the Convolution module (rather then the scriptnode) as it seems to me that they have the same issues. That is, when play cursor is placed close to the audio and playback starts, the convolution seems to miss the initial portion of the audio.

When using the new DAW style timeline in HISE, placing a tiny audio snippet on the timeline, placing the playback cursor at the start of audio and starting playback, there is no issue.

To test in a DAW ( using the provided dll)
Make a tiny snippet of audio, place it on the timeline, start playback at the start of audio.
The convolution reverb will not "catch" the audio.

Then move your playback cursor at least 170ms before the sound starts and start playback.
Now the sound goes through the convolution reverb.

So the result seems to me like when you have a normal sound "vocal/pad" and start playback ,the initial sound comes out dry (or something ?)and then the reverb starts working. I might be wrong on the specifics of what is failing but that is what it sounds like.

Here is an Win dll for testing, click to download

Here is the snippet , super simple convolution.

HiseSnippet 1235.3oc2X0saaTDEd1DuPSJT0VUp3x8BtHUpDYSSKn1KhS7OIFxOV1tMsRQpZxtGaOjcmYY1YSpEBtlGCdTr3I.ItkGh7F.mYW+yrgMAioMjhuHRyYlyNemuyuSZJEtPTjPRrVpyfPfX8Q1sGvU8qzmx3jFU0BpPUt8cTPjhr4fPZTD3QrrVbK8IrVp.I42YquI0mxcgohHjWHXtvNr.lZpzlk+FluecpGzgEXb50J2vUvqH7EwHZVztHIj5dLsGrGUerErIVePMOlRHaqnHXHVE1T3Mncewo7zy+BVD6HePunDoM9gREWW36oQrVJoReluWywVcDgXY2bJGrXJGbO6cYdrIxmxE2NYCmoZXxGVKjEdKlAdkLgWQC3kCjrLfTgTHcG61tRVnZ5NZ7bS6FbEH6RQZ2DJomkXMzth.O.WsZ.8XntDWLQgUdRwhOzA+yCdV2XtqhI3NB9dBErOekGr72u7RK+CK6b9s51M28zWiT36Cxb2V6okWlhqviCNBjOz4DpeLL4fn4mkSsuXN0zk6lZ0FGTvavYp8CA9EEHPFQUZ9eDpvHNUB6+IiX+Mh8XhCnm.cEx.BC456m2NkHIlgYlfGUQIVOyt9SOrEL33uEOo7Hmud6scVyPvgIel5LeH5vhO5.gv6TF2a2UOkdBQR48.jGjne01R+MSjTi6oW+6+HdUOuQU80Lx.PaAsuPPpXZpypJbBlMlFNsjcUH5XkHL4rAgBt1xs9v4zbeyTSsS4ASWzn7oLOU+IBFdZ49.qW+okCFdT4vwNgFd5qFg9IB+3j3iVflUPu0eMg.SEEdw9TU17ScQoQafefLIE5HedDSMvrn0asj1YEh2wtICKmlOFWHGLhty2EXbTotO1tV2tfqZJ.KXW+kuipqsfw8eiIsaXAg9vViu9aMRfiVRoKpgyO+KO9oCqB9zLD0AYB1HupbNsjZvwPJUSgOUddZdwY1NKc41YgYNVPaRNWqiWuqcBMecGjIt9q2f711Mo+W4raIvBp7d6RURFVr1du3f13bVt.BONG70sVsVP2DLccww8XZCbujE+A9azlkzqsFsYowaZRC2cbwEih4IbP9k2MIhpxAYGr7UCO.Tlo93HHC2AIDtalz2FAgw9QvN.umYQfyVeDtZvCiUlxedDrINgYOoHl60ouDndleulRv67EX1lUw3a7S+V4pzfPjWMOS85cF0icjn6UV2POcJ1+MC.DnofTuR.8Mia56KDgYlJPKvXnf2ZU0tpigtUJKdSre.GRdSRRDz8SV6nm8vYKfCRcRVoK4gI+5r9vjvY9gI66pvquCN+UTnHJyGtMDv5fSSEYJDizpKguqkNs2TdEAUl6VmsdczHyUm1TUrLo9wFAXfq5x5fUX170+MOPpv0tGH8dv3fYdC2RiwX5nM0vQP7wAymzesKM1WMVZ1X4cEbQXeAm4Z5naAXNXudfzD64ZPanTXMNyhQs.efZFz9Yk2AC1nRjmf4jKJ8O98r45u9T6T35nS.cd+cL9E+e8X7WIMBtJti.pqT7Z2z25qiSuQhDzt4IMqWxdW8ZmIOm21t3pEw9vdrW65po3OuDgjuNewbnyilCcVaNz4wygNOYNz4KmCc9pKUGcykMhUhfzTNTPyZI+KOrrpwoXzaRjN4OADPVNR.

[lalalandsynth]

Any chance of addressing this or verify, although I am 99% sure this is a bug.

[Dan Korneff]

@lalalandsynth I'm using a test file that is 8 samples long.

In Cubase, I'm not seeing any issues using online or offline rendering.

In Reaper, I see an unexpected result when using offline rendering, but online rendering works properly.

[Dan Korneff]

With larger files, it seems to render completely, but offline rendering contains a little glitch at the beginning.

This only affect audio when the rendering start point is directly at the beginning of an audio source. Starting offline bouncing a couple ms before audio will export properly.

[ustk]

@Dan-Korneff @lalalandsynth If audio is spitted out prior it comes in, it looks like a buffer is somehow not emptied properly in the DSP...
This might also explain that a pre-roll cleans the buffer in time before audio is coming again...
@Christoph-Hart ?

[lalalandsynth]

Any chance of getting this fixed, would rather not release a plugin with this issue.

[rzrsharpeprod]

@lalalandsynth did you ever resolve this as I am encountering this issue at the moment.
It is quite noticeable in DAW (FL in this case) and puts me off using the reverb which is a shame as it is a flexible option to have.

[lalalandsynth]

@rzrsharpeprod No, sorry.
I am assuming this has to be fixed, have not found a workaround.

[paper_lung]

Was this ever fixed?

[Adam_G]

bump bump :D