time-sharing

luis — Fri, 08 Mar 2024 12:26:32 GMT

Dear all,
I am using INQUISIT mostly to run verbal Stroop tasks with SPEECH RECOGNITION, and I have experienced certain troubles with the Speech Recognition Engine. I turned to the VOICE RECORD, and I think that this provides a more reliable way of registering responses, while still providing an efficient way to analyze them. However, I have noticed that the scheduled trial timing varies from trial to trial, as if the program was stopping to access the disk and record the responses. The response-to-stimulus interval is important for my research, and thus I would like to know if there could a way to optimize time-sharing, for instance by forcing the system to access the disk during non-active intervals (e.g., during the presentation of the fixation point). I know this is a rather technical question, and I would like to think that this is only my impression and that the problem does not exist, but I need to know if the problem is real and if there could be a solution to it.
Thank you very much for your support,
Luis

RE: time-sharing

Dave — Fri, 08 Mar 2024 12:26:32 GMT

+x[quote]

[b]luis - 3/8/2024[/b]
Dear all,
I am using INQUISIT mostly to run verbal Stroop tasks with SPEECH RECOGNITION, and I have experienced certain troubles with the Speech Recognition Engine. I turned to the VOICE RECORD, and I think that this provides a more reliable way of registering responses, while still providing an efficient way to analyze them. However, I have noticed that the scheduled trial timing varies from trial to trial, as if the program was stopping to access the disk and record the responses. The response-to-stimulus interval is important for my research, and thus I would like to know if there could a way to optimize time-sharing, for instance by forcing the system to access the disk during non-active intervals (e.g., during the presentation of the fixation point). I know this is a rather technical question, and I would like to think that this is only my impression and that the problem does not exist, but I need to know if the problem is real and if there could be a solution to it.
Thank you very much for your support,
Luis
[/quote]

Disk access is always costly and will of course affect timing. To reduce variance, set a sufficiently long /posttrialpause in your trials.

https://www.millisecond.com/support/docs/current/html/howto/howtocontroltiming.htm

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time-sharing

RE: time-sharing