Plugins at different sample rates

[ThePilot]

I am not sure if only at Reaper this problem occurs.

Many plugins I use or I want to use sound very different at different sample rates. And I mean REALLY different, not only a small quality issue. At 96kHz their effect sounds like double high pitched and double fast than at 48kHz.
For example:
- convolution reverbs.
- speaker, vinyl or tape emulations.
- some exciters.

Here an example of the background noise produced by the plugin "Cassette transport" from waves:
https://dropmefiles.com/6ofod
10 seconds are at 48kHz and then 10 seconds at 96kHz.
Also the tape stop function would be twice as fast at 96kHz than at 48kHz.

Deleting the plugin from the track and reloading it after changing the sample rate doesn't help.

Is there perhaps something wrong with my Reaper settings? Or is there something I can do to fix this?

[Judders]

Either the plugins don't support 96kHz (unlikely) or for some reason the sample rate is not being reported correctly to the plugins by REAPER (I've never had this problem).

[Stella645]

How are you changing sample rate and are you sure the audio interface is following what you set in Reaper (or vice versa)

[Wallaby]

Is Reaper set to use an ASIO driver ?
While the interface driver is a WDM driver ?
Make everything ASIO or WDM, don't mix !

[ThePilot]

I change the sample rate by the project settings.
BTW, the problem also occurs when I use Reaper FX-oversampling.

Changing the sample rate works with a normal track or item regardless it is wav or mp3. I mean I can change it and the music sounds the same after that. Only effects sound different. I don't think it can be a problem of the interface. I don't change interface settings. I work only with the soundcard of my notebook. I am not a professional.


Edit: Wallaby, thanks, I will check it. But I am not at home at the moment.

[mschnell]

Originally Posted by ThePilot

At 96kHz their effect sounds like double high pitched and double fast than at 48kHz.
For example:
- convolution reverbs.
- speaker, vinyl or tape emulations.
- some exciters.

This definitely is a bug. The DAW notifies the Plugin about the sample rate, and that has to act appropriately.
As you verified that Reaper does this correctly with many plugins, obviously some plugins are misbehaving.

It might be that certain plugins only accept a setting after loading but not any change later on....

-Michael

[mschnell]

Originally Posted by Wallaby

Is Reaper set to use an ASIO driver ?
While the interface driver is a WDM driver ?
Make everything ASIO or WDM, don't mix !

????
Reaper does not allow mixing ASIO and WDM.

The project sample rate does not need to be the sample rate of any interface.
The Plugin sample rate does not need to be either of those.

[mschnell]

Anyway:

A notion regarding the next relase of Reaper's:

* Includes feature branch: improve samplerate change behavior when loading projects

Maybe this might help.
-Michael

[ThePilot]

I mean most Reaper users have paid only those 60$. So probably they also don't want to pay much money on plugins. So many use free plugins here I think. And I cannot believe that noone is recognizing such problems. But when I google something like "Cassette Transport plugin sample rate problem", I don't find other people with that issue.
But yes, technically it looks like the problem is not Reaper, because most plugins work same at all sample rates with Reaper.

Here a list of plugins that don't work same with different sample rates in my DAW. Perhaps one of you use it and doesn't have problems:

- ReaVerb (used as convolution reverb)
- Convology XT
- ThrillseekerXTC mkII
- SpinnerLE (this one works when I change both "level" knobs to zero and then press two times undo on Reaper)
- Cassette Transport (other than written above only the background noise is different. The tape stop time is the same always)
- kHs Convolver (this is a paid plugin. But I only had the free testing period)
- MConvolutionEZ (this works similar or perhaps same on different sample rates when using its loudness normalization button)

Perhaps next Reaper version will help. What do you think it will be released?
Is there a link where I can find informations like what they working on currently?


Thank you all.

[mschnell]

Originally Posted by ThePilot

What do you think it will be released?

Supposedly only some days from now.
-Michael

[mschnell]

Originally Posted by ThePilot

Here a list of plugins that don't work same with different sample rates in my DAW. Perhaps one of you use it and doesn't have problems:
- ReaVerb (used as convolution reverb)

AFAIK this never has been discussed here. Hence it is a problem of a specific setup rather than something general.
-Michael

[ThePilot]

Originally Posted by mschnell

Anyway:

A notion regarding the next relase of Reaper's:

* Includes feature branch: improve samplerate change behavior when loading projects

Maybe this might help.
-Michael

I did update today. It didn't change this unfortunately.