Problem running PianoTeq 4 in Reaper

Thanks for your reply EvilDragon. Well, I've just re-installed PianoTeq again, this time without the 32bit VST, just in case that helped - 64bit only (as in your system, EvilDragon).

But no - inside Reaper, it's exactly the same: even though PianoTeq, as a plug-in inside Reaper, is responding to midi, there is no sound. As soon as I put back the 32bit .dll, however, PianoTeq works.

But, it is working only via Reaper's bridging facility and it is of lower quality than the stand-alone.

This is a pity as PianoTeq4 is a great set of pianos. But it's not worth getting if the quality is going to be so compromised.

What's your soundcard: not a 'sound card' exactly, but the audio is handled with an external
Behringer Xenx302. It mixes audio in/out with digital  i/o via USB

MIDI controller: Yamaha UX16 (from Roland HP302 piano)

Reaper version:  4.402 64bit

Windows 7 Pro service pack 1

But it IS weird because I'm running other VST's including EWQL Symphonic Choirs which is supposed to be complicated (and it it was a bit!) and Kontakt, with no problem at all - all using 64 bit .dll's!

I don't think the installer is the problem because, based on what you said, I flushed out the PianoTeq Stage version and installed the full (demo) version of PianoTeq 4. But it's exactly the same - it works using the 32bit backup with Reaper's bridge tool. But the 64bit version categorically will not work.

The stand alone version is ok, and works very well in my computer - but that's no good to me beyond being a good demo.

Very frustrating!

Can you try using WASAPI as audio driver in Reaper instead of A4A? I get good performance with it, better than with A4A even, on my computer(s).

I suspect a lot of the problems could be linked to you using that Xenyx as your audio interface. Having a dedicated audio interface with proper ASIO drivers (which means NOT A4A!) would definitely make a difference.

An excellent suggestion. The sound card that came with this computer (a second hand HP X6200 which was used for gaming) is called SoundMAX works better than the Behringer USB mixer. No break up, no strange time lags (only the ones expected with the setting).

I also have a very old sound card in another computer which I'll try tomorrow, perhaps - it was state of the art back in the 90s - AudioWerk 8, I think it's called, made by the people who make the Logic/ emagic stuff. The problem with it was, at least the last time I tried it, it does not accept the sound drivers that work with ASIO. Also, I went round the internet for weeks looking for XP drivers for it, so I don't hold out much hope for Windows 7 drivers for it....then there's the 32/64 bit problem.......

But the SoundMAX seems ok, but it's just a general purpose thing, by the look of it.

The Behringer mixer is very handy indeed but, I fear, a bit crap.

Do you mean something like M-Audio Audiophile 2496? And would that go through its own ASIO or something like ASIO4ALL?

I'm still having various problems with the system I've got, which ever drivers I use...though there are 'work round' solutions. But it means you can never have the whole system working together - you have to reconfigure for mike/midi/midi recording, and so on. Pain in the ass. 

The synchronization problem with WDM kernel streaming (time lag after some seconds of running, but not in the beginning)  should surely be solvable by a software fix of some sort.

Also, the  (Behringer mixer) USB sound system solution is more convenient because it allows more mixing possibilities - saves a lot of time and gives more monitoring options. Pity about the drivers....