Feedback Sound for Incorect Responses

Builder
1

OS (e.g. Win10): Windows 10
PsychoPy version (e.g. 1.84.x): 3.0.0b10
Standard Standalone? (y/n) If not then what?: honestly don’t know

What are you trying to achieve?:
For my trials, when a participant responds incorrectly or not fast enough, then a low toned beep should play.

What did you try to make it work?:
I have a sound component that plays at the end of a trial (i.e., when a participant is too slow with response therefore “force end of routine” is not activated), but have not been successful at having it beep when the participant is incorrect. The current code component I have is:

if resp.corr:

else
toneF = 330

This is set at the beginning of routine
What specifically went wrong when you tried that?:
When I try to run, it gives me the error: “Indentation error: expected an indented block”

2

Hi @ERocks, you have an indentation error in your Python code (see Python docs). To fix:

if resp.corr:
    #do something
else:
    toneF = 330
3

Hi @dvbridges, thank you for the help. Now the error is saying “resp.corr” is invalid syntax. Not sure how to proceed from here

4

Would ypu mind pasting the whole error msg and the code you are using?

5

@dvbridges Here are screenshots of the error message and code. Please note I changed the code to reflect a possible solution from the following post, but continue to get the same error:
https://groups.google.com/forum/m/#!topic/psychopy-users/GTV6d9U-NmM

code%20for%20beep
code%20for%20beep1423×803 199 KB
error%20message1
error%20message11437×811 207 KB

6

Ah I see, the keyboard attribute which stores the response accuracy is corr. So, you want:

if key_train1.corr:
    # etc
7

Ah, thank you! I am no longer getting error messages now, however it is not doing what I want it to (i.e., beep volume = 0 when resp is correct; it is beeping for all responses)

8

Great. To set your volume, you will want to use one of the sound component methods. The setVolume method can be used to set the volume of your sound object. Try this:

if key_train1.corr == 1:
    low_beep_incorrect.setVolume(0)
# etc ...
9

@dvbridges Thank you for all your help. Unfortunately it is still beeping with every response, not just with incorrect responses. Here is the code I have set up, as well as the key_train1 and low_beep_incorrect properties in case something is wrong in there:

code%20for%20beep2
code%20for%20beep21701×956 227 KB

key_train1%20properties
key_train1%20properties1566×733 140 KB
low_beep_incorrect%20properties
low_beep_incorrect%20properties1633×572 84.9 KB

10

This may be a ordering issue. Your code component is setting the volume on every routine, and so is your sound component. However, the sound component comes after the code component, so the volume is reset to 1 on every routine regardless of what your code component is doing. Try moving the code component below the sound component in your routine.

11

@dvbridges Thank you for all your help! It did turn out to be a timing issue, both with where the code component was and that the actual code needed to be under “Each Frame” as opposed to “Begin Routine” in the code component. The beeps now only play with incorrect responses!

12

Hi, I have been struggling with presenting audio feedback in one of my experiments. I have managed to get the audio to load online, but I am struggling to set the correct/incorrect audio via the excel sheet (I have just put correct.wav in there so I can get some of it working). I have added a new column to the excel file (2backpractice), but I need to specify correct/incorrect based on the participants key press. I have added a code component to specify which audio to play, which works locally but I don’t know the code I need to get it working properly on pavlovia. Here is my link nback [PsychoPy]