Vocal RT without SRBox

[Oscar Ferrante]

Thank you very much for your answer, Michiel!

I use E-Prime 2 and the method that you mention it's the same that I
thought.
I don't know Mat-Lab and neither my professor.

If someone else have other ideas I will glad to read it!
Il giorno 26/feb/2013 13:55, "Cognitology" <mspape at cognitology.eu> ha
scritto:

> Hi,****
>
> Please correct me if I’m wrong, anyone, but although there **is** in
> E-Prime 2 a soundcapture device, with which you can record audio for your
> experiment, there is no way to use this as an alternative to the SRBox
> voicekey input. ****
>
> However, you can still do what you want by using the soundcapture, to save
> the wave file for each trial (try to save the sound as a trial number or
> some such so that you know what condition it was in), and then get the
> reaction time from that. The hard way to do that would be to use any audio
> editor (I like cool edit, but audacity works), and see when a reaction is
> given. This is possible but will take a number of hours to work. If you
> know a little matlab, an alternative would be to do some signal processing
> and just detect for a threshold, which shouldn’t be too hard (find RT as
> time(dB > threshold)).****
>
> If you only have E-Prime 1, you could just record the whole experiment and
> have loud sounds as a synchrony marker.****
>
> ** **
>
> I’ve noticed before that any voicekey type of experiment requires roughly
> the same amount of extra time of processing as (duration of experiment) x
> (number of subjects), though!****
>
> ** **
>
> Cheers,****
>
> Michiel****
>
> ** **
>
> ** **
>
> *From:* e-prime at googlegroups.com [mailto:e-prime at googlegroups.com] *On
> Behalf Of *Oscar Ferrante
> *Sent:* 26. February 2013 13:19
> *To:* e-prime at googlegroups.com
> *Subject:* Vocal RT without SRBox****
>
> ** **
>
> Hi everyone!
> I'm an Italian student at Università "G. d'Annunzio" of Chieti-Pescara.
> For my thesis, a dual-task experiment, and I need to register the vocal
> reaction time through a microphone.
> There is the possibility to do this without the SRBox? If yes, how?
> Thanks to everybody will answer! ****
>
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