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Sampler Sound automatically gets louder after repeat_circle

Hey guys,

another question from my side. I am setting up an experiment based on audio stimuli. Before the main experiment part begins we've build a sketchpad frame, combined with a sampler and a mouse response in which the participants should adjust the volume of their speakers. If they want to listen to the sample audio again they can click on a button that then triggers a repeat_circle element after which the sampler (as all other items) is called again. The problem is now that I've realized that even when the volume is not adjusted at all the audio played by the sampler is louder than in the first presentation.

I also have realised that some time ago already, when I was working on another project where audios were presented and could be repeated, though at that time it wasn't a problem for us. So I pretty sure it's not caused by anything specific just on this current experiment.

Is there any setting of the sampler with which this might be to fix? Or is this more a general type of bug in OS right here?




  • Hi Leo,

    This does sound weird! To be sure that the volume within Openessame really increases, you can print out the volume on every iteration of sampler call. I add an experiment for demo purposes. Perhaps you can try that?


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  • Hi @lt_kn_char and @eduard ,

    This was indeed a bug in OSWeb, but if you update it will be resolved.

    — Sebastiaan

    Buy Me A Coffee

  • Hey @sebastiaan,

    thanks for the information. Though it seems to me that this is not fully resolved even under OSWeb 2.0. Still after updating and setting up the experiment in OSWeb 2.0 the volume gets automatically louder with every repeat cycle repetition.

    Thanks for all your work,

    Leo :)

  • Hi @lt_kn_char ,

    Can you confirm that you are running the (at time of writing) latest version of OSWeb, which is 2.1.0? If yes, then I'll look into it. If not, then please first update and see if this resolves the issue.

    — Sebastiaan

    Buy Me A Coffee

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