Some information about your system would be helpful.
PC or Laptop ? Which CPU, Mainboard, how many DRAM, HD or SSD ?
I am wondering that you need such high ASIO buffer size values...
I am also using some VST and VSTi but usually can use buffersize values between 32 and 256.
In rare cases, when having a very bad VST, the maximum that I needed was 512.
And even with many tracks (400) and many VSTs enabled (~800) I have no audio drops at ASIO buffersizes
of only 32 samples and sample rates of single or double speed up to 96 kHz and no matter whether using
RayDAT (PCIe) or UFX+ (USB3), see here:
https://www.tonstudio-forum.de/blog/ind … cks-de-en/
And yes, if you select such high ASIO buffersize of 2048 or 4096 then the latency is that much.
But I am not sure about 4096 whether this is available for single speed.
Can it be the case that you run the project at double speed (88.2/96 kHz), because then the buffersizes
are double compared to single speed, that would explain the 4096.
But it could also be the case that the HDSPe driver has a higher maximum value at single speed.
How high are
- CPU load and
- your ASIO load
when playing back such a project ?
Are you running at high performance energy profile ?
How is your DPC latency on an IDLE system ? You can make measurements with the Tool LatencyMon.
Search the forum, several checks have been made already.
If you make this measurement please take care to do this on a freshly booted system, just logged in,
waiting until all processes are started up, then start latencymon for at least 10min.
On an IDLE system, please no keyboard activity or mouse movement, this Test creates a typical DAW load on its own.
UFX+, 12Mic, XTC, ADI-2 Pro FS R BE, RayDAT, X10SRi-F, E5-1650v4, Win10Pro22H2, Cub12Pro