Praat script duration manipulation11/25/2023 ![]() You will see the spectrogram if you zoom in close enough. Notice how production of various sounds charges according to their position. Select different regions and play them by pressing Tab. Know that you can also pinch to zoom and swipe with two fingers to scroll left and right if you are using a Mac with a trackpad.įeel free to procrastinate a bit and explore Praat. ![]() 'output_directory$'\'word$'_step_'currentstep'.Remember the following keyboard shortcuts when working with a sound file Praat: Action 'output_directory$'\'word$'_step_'currentstep'.wav # copy final segment of the recording (silence post word offset), so Praat concatenates in the correct order # adjust the intensities to an average/ambigous value # set (average) target intensity per syllable # extract each syllable again for intensity manipulation MinusObject: "PitchTier interpol_'currentstep'" PlusObject: "PitchTier interpol_'currentstep'" ![]() # select original audio (in this case SW recording) and replace the pitch contour 'currentbin_mid' 'currentbin_f0_interpol' # step 11 of the continuum is the original WS contour.Ĭurrentbin_f0_s1 = f0_bin_s1 Ĭurrentbin_f0_s2 = f0_bin_s2 Ĭurrentbin_f0_diff = currentbin_f0_s1 - currentbin_f0_s2Ĭurrentbin_f0_ratio = currentbin_f0_diff * 'step_ratio'Ĭurrentbin_f0_interpol = currentbin_f0_s1 - (currentbin_f0_ratio * ('currentstep'-1))Īdd point. # step 1 of the continuum is the original SW contour # the stepsize is 10% of the difference between SW and WS #define number of steps for interpolation currentbin_midį0_bin_s2 = currentbin_f0_s2 currentbin_midį0_bin_s1 = currentbin_f0_s1Ĭurrentbin_f0_s2 = Get value at time. # create 10 ms time bins for interpolationĬurrentbin_start = (currentbin*timebinsize)-timebinsizeĬurrentbin_end = (currentbin*timebinsize)Ĭurrentbin_mid = (currentbin_start + currentbin_end)/2Ĭurrentbin_f0_s1 = Get value at time. # save TextGrid with the boundary between the syllables. # Concatenate duration-manipulated WS word # Concatenate duration-manipulated SW word # Set the duration of syllable 2 of the WS word to the average, ambiguous duration # Set the duration of syllable 1 of the WS word to the average, ambiguous duration # Set the duration of syllable 2 of the SW word to the average, ambiguous duration # Set the duration of syllable 1 of the SW word to the average, ambiguous duration 'input_directory$'\'wavfile_ws$'.Textgrid # select and rename the first and last interval (silences) for future reference, to concatenate the final audio # select the third interval (second syllable) and get the total duration and the intensity # select the second interval (first syllable) and get the total duration and the intensity # select the mono file and the corresponding textgrid and extract all intervals 'input_directory$'\'wavfile_sw$'.Textgrid # To interpolate F0 contours, recordings must be of equal length. # get only the word name without extension or stress identifier (sw or ws) # create list again because it removes itself after every iteration # create file list of all files with the ending "_sw.wav" (just sound files, one per minimal pair (sw))Ĭreate Strings as file list. # please adjust the arguments of the functions "Lengthen (overlap-add)" and "To Manipulation". # Note that the parameters for pitch estimation are set to match a male voice. # Textgrids for each recording are required, with boundaries at word onset, second syllable onset and word offset. No other underscore characters are allowed. # (e.g., voornaam_sw.wav & voornaam_ws.wav). Stress pattern in input files is denoted with "_sw" or "_ws" # This script requires minimal pairs to match in their name. # Duration and Intensity are set to mean, ambiguous values. # The manipulated F0-contours are applied to the SW recording to create an F0-based lexical stress continuum. voorNAAM) and interpolates their F0-contours linearly. # (strong-weak SW) or second (weak-strong WS) syllable (e.g., VOORnaam vs. # This script takes recordings of segmentally identical, disyllabic minimal stress pairs with lexical stress on the first ![]() # project: Audiovisual Perception of Lexical Stress # email: filename: F0_stress continuum_interpolation.praat # author: Ronny Bujok (adapted from Hans Rutger Bosker) # date:, run in Praat 6.2.12 on Windows 11 First, it matches the two words in duration and then interpolates the F0 contour linearly in 11 steps (steps 1 and 11 being the original contours), controlling for intensity. This script creates an F0 continuum for two segmentally matching words (e.g., SUBject vs.
0 Comments
Leave a Reply.AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |