Sound quality is low for linguistic stimuli

Builder
1

If this template helps then use it. If not then just delete and start from scratch.

OS : Win10
PsychoPy version : 2021.2.3
Standard Standalone?: yes
What are you trying to achieve?:

I have created my experiment using the builder. However, when I run my experiment locally the sound quality changes. I use sound stimuli for my experiment. Specifically, some sentences are uttered in the sound files. The sound changes when I run the experiment locally. This problem disappears when I run it online. The sound files are wav.

What did you try to make it work?:

A similar problem was present for purely instrumental stimuli. And I am concerned about whether this will affect the sound patterns without my awareness and I will get incorrect results. Does anyone know the reason and how to fix it?

2

Are you able to describe a little more how the sound changes? is it for example that it sounds higher pitched (indicating that the sampling frequency might be different?)

Thanks,
Becca

3

Thank you Becca. Yes, exactly. It sounds higher pitched. I have created the sounds on Audacity with a sampling rate of 44100 Hz. Do you think the problem is related to this?

Thanks
Aziz

4

Hi Aziz,

Ah ok yes that may be the issue. There is a solution that may help described here: Audio stimuli changed in pitch? - #11 by aeli

I believe that you may bee to resample your audio to be 48kz if possible?

Hope this helps,
Becca

5

Thank you Becca. I think I will try to change the settings.
Best
Aziz