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Ethan Weed
Приєднався 25 вер 2011
OpenSesame SternbergTask
This implementation of the Sternberg experiment is taken directly from Tom Faulkenberry, who gives a more thorough explanation here:
ua-cam.com/video/HG8GmhlHOu4/v-deo.html
The stimuli are taken from Faulkenberry as well:
github.com/tomfaulkenberry/courses/blob/master/fall2018/psyc5316/README.org
The same stimuli can be found in the PsychoPy Sternberg demo:
www.psychopy.org
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I have added two breaks to Faulkenberry's original design, to give participants a rest, and give them a feeling for how far they have progressed.
ua-cam.com/video/HG8GmhlHOu4/v-deo.html
The stimuli are taken from Faulkenberry as well:
github.com/tomfaulkenberry/courses/blob/master/fall2018/psyc5316/README.org
The same stimuli can be found in the PsychoPy Sternberg demo:
www.psychopy.org
----------------------------------------
I have added two breaks to Faulkenberry's original design, to give participants a rest, and give them a feeling for how far they have progressed.
Переглядів: 245
Відео
How to create and save a jupyter notebook with anaconda navigator
Переглядів 82 тис.7 років тому
How to create and save a jupyter notebook with anaconda navigator
Repeated measures ANOVA with JASP
Переглядів 27 тис.8 років тому
This is a video for my students, but if anyone else finds it useful, that's great!
Independent samples t-test with JASP
Переглядів 12 тис.8 років тому
Instructional video for my students. Data in the video are from: www.stat.ufl.edu/~winner/datasets.html
Plotting pitch and intensity contours with annotations in Praat
Переглядів 35 тис.8 років тому
Plotting pitch and intensity contours with annotations in Praat
Recording a sound file and viewing a spectrogram in Praat
Переглядів 3,8 тис.8 років тому
Recording a sound file and viewing a spectrogram in Praat
PsychoPy_01 Demo: self-paced reading task
Переглядів 13 тис.9 років тому
PsychoPy_01 Demo: self-paced reading task
DoL lesson 05 - removing spaces and punctuation from strings
Переглядів 16 тис.9 років тому
DoL lesson 05 - removing spaces and punctuation from strings
DoL Python lesson 04 - using split delimiters and the set command
Переглядів 1,2 тис.9 років тому
DoL Python lesson 04 - using split delimiters and the set command
DoL Python lesson 03 Using Python to count things
Переглядів 4099 років тому
DoL Python lesson 03 Using Python to count things
DoL Python lesson 02 Intro to Variables
Переглядів 3609 років тому
DoL Python lesson 02 Intro to Variables
DoL Python lesson 01: Using Canopy
Переглядів 8 тис.9 років тому
These videos are created for a course I teach on language acquisition. They are intended to help students who have no prior experience with programming get their feet wet using Python in the Enthought Canopy environment
5:08 you are my hero thank you
how did u select the sound and textgrid at the same time please? Mine just doesn't work when I click on the sound.
On a Mac I do command-click. I think it is ctrl-click on Windows.
Hi! I have a question: the green value of the intensity of the sound that appears on the screen rapresents the medium value of it?
The green values represent the intensity (in dB) at the point in time where you last clicked in the spectrogram. If you haven't clicked anywhere, the value is at the middle point in time. If you highlight a section, the value changes to the mean value for the section you have highlighted. You can watch this mean value increase and decrease as you highlight a section of the spectrogram.
thank you
how do I select two simultaneously?
On a Mac I do command-click. I think it is ctrl-click on Windows.
thank you!it worked!@@ethanweed
Thank you so much! You helped me finish my assignment ❤
You're welcome, glad it helped!
which recorder do you use to record your data?
I'm really not the right person to ask, I haven't done many of my own recordings.But it really depends on your needs, which I know is a non-answer! Depending on what you want to do with the recordings, I could imagine anything from a fancy microphone in an anechoic chamber to a smartphone on a table being appropriate.
Thanks! How do you report the results?
Hi Liliana, there are lots of places you can find this; Statology has a good summary: www.statology.org/how-to-report-repeated-measures-anova/
thanks
Thanks, How do we measure contours, H-L* or L-L?
Hmm... I think you are asking about TOBI coding, which is something I really don't know anything about. But, you can click anywhere in the waveform or spectrogram and get the f0 values, if that helps.
When I reopen the file, the old codes don't work anymore. Like your example, if print(e) , the system doesn't recognize the e anymore. How can I solve it? thanks
My guess would be that you haven't re-run the first cell, where e is defined. When you close a notebook and the reopen it, Python forgets all the variables that defined. Often problems in Jupyter notebooks can be solved by just going back to the top and re-running all the cells.
How did reaction time appear in the data? Did you enter any instruction for it somewhere so that it would appear in a column?
It's been a long time since I used the PsychoPy builder mode, but I think it automatically records the time of each keypress. Check out the PsychoPy forum, where lots of kindly folks can help you out with your experiment: discourse.psychopy.org
Thanks for your video! Is it possible to save pitch file as a sound?
Yes, you definitely can. If you have created a pitch object in Praat, then, from the main menu, select the Pitch object and choose Sound, and then To Sound. You can choose to render the pitch contour as either pulses, hum, or sine wave.
@@ethanweed thank you
But how did u get them in a group?????????
U only have scale variables, I have like 20 different ones
@@Sofia-yw3yg I'm not 100% sure what you mean, but my guess is that you are running into one of the limitations of JASP, which is that it wants you to have your data organized in a certain way for each analysis. Sometimes you have to reorganize your data from wide format to long format or vice versa before you can do the analysis you want. Since I made these videos, though, JASP has added some great sample data sets with explanations for how to do the analyses, so I would definitely recommend checking those out. Look in the menu Open -> Data Library; there's tons of good stuff in there.
Hi there, thank you for the video. I'm writing an MA thesis in Psycholinguistics and I need to work with PsychoPy to employ a self-paced reading task. However, the data consists of 64 sentences in total. Do I need to add them all on an Excel sheet as you did here, or do you have any other recommendations? Also, after each sentence, I need to add a comprehension question with two options. Participants are expected to opt for one option after reading the sentence. How can I do that on PsychoPy? If you could help me with that it would mean a lot, thanks :)
Hi Yasemin, I think the best way to get help would be to visit the PsychoPy forum: discourse.psychopy.org There are lots of smart people there that know lots more than I do about PsychoPy, and they can help you out :)
Wow, this is a phenomenal tutorial, thanks!
Thank you very much, it was quite informative for me.
Excellent bg score. also good content :p
Yeah, it's hard to beat Chopin 👍
Thank you so much!!
I am conducting my first ever cognitive psychology experiment and this video is so useful. Thank you!
Good luck with the experiment!
Hi. Thanks a lot for this helpful video. I just have a question. I have the words under the pitch contour in the drawing box and not above the line as u did. what is the think I miss here to do the same? thanks
Hi Amira. I'm not sure. I made this video 4 years ago, and Praat may have changed since then. I haven't tried this recently, so I can't say. I would suggest trying the Praat Users list: groups.io/g/Praat-Users-List
It's not working for me. I created file outside destop in Jupyter.How would I move into deasktop?
Hmm... I'm not quite sure what you mean, but from Jupyter (e.g. what you see in the video at 0:23,) you can navigate to wherever you saved your notebook file.
great last name bro
Hello Ethan, thank you for your tutorial. Could I ask you how can I decide the intensity setting range? and Also the pitch setting range? I am studying leopard calls
Wow, studying leopard calls sounds very cool! I think if you load a sound file, go to View & Edit, and then look in the Intensity and Pitch dropdown menus you will find what you are looking for under "Pitch settings..." and "Intensity settings..."
frick, that was so simple
What a brilliant tutorial, thank you! ;)
Hi, I enjoyed your DoL tutorials very much! Thank you for the valuable content. Do you offer lessons online? I am interested to join the class.
Hi Angel, Thanks! No, I don't do any online teaching, but there are lots of good MOOCs and other resources out there for learning Python, etc.
@@ethanweed Hi Ethan! Thank you for getting back to me. I hope you are doing well. And for sure! I am actually enrolled in a bootcamp, however I still browse around for more content and better teachers. I think you are an amazing teacher. I look forward to more Python content from you.
Hi! great tutorial! thanks! any idea why it would only work for me with pitch and NOT intensity? (when I select intensity object + textgrid all the buttons disappear!).
Interesting, my buttons disappear too! I don't think I ever tried doing this with intensity alone, so I never noticed. I think you can still get something usable by e.g. plotting the text by itself, and then highlighting an area and drawing the intensity there, but it's not quite the same. You could try asking here: groups.io/g/Praat-Users-List
I love this etude! Great video as well
Come for the codin', stay for the Chopin :-)
Thanks Ethan! I'm going to post this in my Fall 20 Linguistics Phonetics class. The book (Ladefoged and Johnson) has a whole section of a chapter on ToBI which is just way too compressed and poorly explained for undergraduates. So, I'll move over to having them just do Ls and Hs (no * ! ) based on these beautiful contours.
Thanks for this comment, it made my day!
THANK YOUUU, I might not be your student, but it was definitly exactly what I needed
Great, glad you found it useful :-)
Thank you so much for sharing this I need it for my thesis may I ask how do I add annotation and intensity without drawing the pitch contour?
You can just skip the step at 2:00 where I click on "show pitch", and you should be all set.
thanks, short and detailed
Is music nesserary all the unwanted distirbences
Thank you. :)
You're welcome :-)
Ethan Weed Thank you for this video! I'll be using this app for my research study.
thank you so much!!! this is exactly what i need for a project i'm doing! :D
Great, I'm glad it was useful :-)
A really helpfull video. Thanks a lot! I followed the same process as you but I cannot take the same picture of pitch as you (a line of points). I only get a messed up mixure of lines. Any suggestions?
Hmm. Maybe Praat is having a hard time finding the F0 in your sound file. You could try with a file from talkbank.org and see if you can get that to work first.
@@ethanweed After some restarts it seems that it's working. I don't have the same depiction as you but now it seems reasonable. What version of Praat do you use?
@@gabrielkaravasilis2209 Good to hear it is working now. I just update to whatever the most recent version of Praat is. I made that video several years ago now, so I'm not sure what version I was using at the time.
@@ethanweed I see. Thanks again!
Thanks you
He Ethan. Thanks a bunch for this. Really helpful.
Hello Ethan Weed. Thanks so much for sharing this! I have few questions regarding speech analysis; 1. Is PRAAT the best open source software for singing sound (without instrument) analysis? 2. There are few papers suggest to perform MFCC to obtain envelope, does MFCC really represent amplitude envelope? If yes how can I extract envelope from PRAAT? 3. Should I consider music audio features (eg. melody, tempo etc) for singing sound analysis? Or just focus on speech features? Thanks in advance!
Hi, I can't tell you what the best open software for voice analysis is, but Praat is certainly a good option. It is reasonably user-friendly, and is well-known. Mel-frequency cepstral coefficients (MFCCs) are a measure of spectral qualities of the signal (Fourier-transform the signal, convert to mel scale, take the log, and cosine transform (see e.g. en.wikipedia.org/wiki/Mel-frequency_cepstrum and en.wikipedia.org/wiki/Cepstrum). I do not think this is what you need if you are looking for the amplitude envelope. I have not tried this personally, but I can see that He and Dellwo have published a Praat script that finds the amplitude envelope here: www.zora.uzh.ch/id/eprint/127258/1/HeDellwo_Interspeech2016.PDF You should be able to copy/paste their script into the script editor in Praat, and (perhaps with a few changes) use it to work with your files. I cannot answer your last question, as this depends entirely on what your goal with the analysis is. Hope this helps, Ethan
how should we insert Arabic letters. When I write the sentences with Arabic alphabet, they become mirrored.
I don't have any experience with Arabic myself, but you may find an answer here: discourse.psychopy.org/t/psychopy-presenting-text-in-persian-arabic/3408
thank you
You're welcome, glad you found it useful :-)
Is it possible to export data from Praat? this is needed to calculate the standard deviation in IBM SPSS Statistics.
Sure, you can do that. There are several ways to do it. Say you want F0 measurements, you can view a sound file, select the section you want to analyze, and then in the "Pitch" menu choose "Show Pitch" and then "Pitch listing". This will open a text box with time and F0 data. If you have many files, you can also script this, so that you can calculate and export your data automatically.
played the entire video because i liked the music
thanks you save me time!!
Thank you, then after typing something to save that Files-> Save and check point, then changes made also get saved
You have just helped me a lot! Thank you!
I am having an issue with the Excel file where I have written the conditions. I go to trial properties then click on browse and try to select the Excel file but it doesn’t recognise it. For some reason it does recognise other Excel files but not this one. I have also tried pasting the conditions into the file that it does recognise and saving it as a .csv file but that doesn’t work either. Any idea why this might be? Thanks!
Hmm, not really. I would try: 1) creating a new Excel file 2) checking that the Excel file doesn't have any odd characters in the name 3) make a .csv file from scratch in a text editor like BBEdit on Mac or Notepad on Windows. That's what occurs to me off the top of my head. If these don't work, head over to the PsychoPy support forum, people are usually quite helpful there.
Hello Ethan, thank you for your advice. I asked on the forum and found out that the problem was that I was using numbers as column names, all I had to do was add a letter as you did in your video (e.g., "S1" rather than only "1").
@@ggl6282 Ah, makes sense. Glad you figured it out, and thanks for posting the answer here, so others with the same problem will find it.
Thank you so much 🙏🙏🙏