How to perform a hardware reset of a galaxy tab S?

My tablet is stuck at a screen (S Voice) and otherwise completely irresponsive. I tried to press the power key for some time, hoping for a hardware reset (like the one found on PCs). I also tried the Power-Volume-Home combo - no response. **Is there a hardware way to reset a tablet ?** (I see a tiny hole on the edge, right of the Home button but it is really tiny) - I do not want to perform a factory reset or "hard reset" as shown on numerous pages (using Power-Home-Volume). This requires the tablet to be powered down - I can wait for the power to drain and hope the tablet will restart but I would prefer to perform a reset first