No luck loading stereo IRs into ProVerb

[TinenTech]

I recorded some impulse responses a while back in my back yard, using ORTF and coincident mic techniques. I thought to get a true stereo convolution reverb in ProVerb, you had to have a stereo file to drag onto the waveform window.

But, when I do this, after ProVerb does its processing and adds "Backyard ORTF" to the User waveforms menu, when I select it:

• the waveform doesn't display
• an error message saying Invalid pre-delay setting for depth shows up just above the selection line, and
• the predelay number at the upper left is greyed out (the knob will still change the number from -99 to 99 ms).

I've varied the formats between 16 and 24 bit, interleaved and de-interleaved, AIFF and WAV, moved the Length and predelay controls throughout the ranges...the result is always the same. When I load them as mono files, they work...but I assume Proverb is convoluting them into its own version of stereo.

I control-clicked on the User bundle in my library, the audio files are there.

Any advice or enlightenment from those of you who design your own reverbs?

[stubbsonic]

I don't know if this relates to your issue, but ProVerb really wants to have the proper inputs and outputs configured or it won't load. So make sure the channel has a stereo output assigned (not a mono one). Make sure the input to the channel is active and has a proper feed (like a bus). I'm not sure if it requires a stereo or mono input, but you can try either.

Worth a try.

[TinenTech]

That's true...ProVerb won't load any impulses at all if it doesn't have a valid output configured, I think. In this case, it's configured as an Aux with a mono input (Bus 1) and stereo output (Main LR Analog Out which is what I use the most). Just for fun, I've also tried it as stereo-stereo (input Bus 3-4) as well. No luck, unfortunately. It works fine when I load a Factory impulse, or a User mono impulse, but not a User stereo impulse.

There's a very interesting 6-page thread on this forum from 2011 debating how ProVerb does stereo...there are hints that when it does the convolution, it makes its own stereo analysis. It's only my assumption that the Factory files were all recorded in stereo to begin with. Maybe they are synthesized according to some algorithm. However, ProVerb does accept a stereo file when you drag it onto the window and processes it without giving an error message.

I haven't yet rebooted, (though I did quit and reopen DP). Sometimes things fall into place when I do.

Thanks, good advice in any case...