Dear VST developer community and Steinberg VST team,
I hope it’s fine to ask this, and I appreciate any pointers from you experienced VST developers. (I have an SWE background but little experience with the VST SDK (3.7.9), I hope you’ll be easy on me ).
I have used the project generator to create an “instrument” type project. Without touching any of the generated code, just building the instrument and then inserting it in Cubase, I get the track to clip tremendously (see screenshot).
Hi
The generated plug-in does not implement the process (Vst::ProcessData& data) function: check the generated processor.cpp file (around line 67)
//--- Here you have to implement your processing
return kResultOk;
}
you could write this:
//--- Here you have to implement your processing
if (data.numSamples > 0)
{
for (int32 i = 0; i < data.numOutputs; i++)
{
for (int32 c = 0; c < data.outputs[i].numChannels; c++)
memset (data.outputs[i].channelBuffers32[c], 0, data.numSamples * sizeof (Vst::Sample32));
}
}
this should clear the output buffer of the plug-in.
Thank you for your kind and helpful reply, very much appreciated.
Yes, while testing the generated instrument project I didn’t write to the output buffer in the process function at all — my mistake seems to have been assuming that the buffer would be zero-initialized by the host, and not writing to it would therefore lead to silence. Wrong assumption on my part — your reply pointed me in the right direction!
).