11/8/2023 0 Comments Praat script duration manipulation![]() ![]() For example, we have used this script to create stimuli for an auditory word familiarity task. This can be helpful if you want all of your stimuli to be played twice during a trial. An optional prefix for concatenated files and the pause duration in seconds are specified by the user. This script reads in all files in a folder and concatenates each one with itself with a pause in between. Make pairs of identical sounds with pause This is useful for creating stimuli for AX experiments, particularly for jsPsych. Pause duration is specified in seconds by the user. Make sure to include a header for each column, since Praat reads in the first row of a table as the header. wav) specified in order in the first two columns, with the name given to the concatenated sound file in the third column. Each sound pair should have the two sound file names (minus. This script concatenates pairs of sound files with a pause between according to rows of file names in a tab-separated text file. This is useful for creating stimuli for ABX or oddity experiments, particularly for jsPsych. wav) specified in order in the first three columns, with the name given to the concatenated sound file in the fourth column. Each sound triad should have the three sound file names (minus. This script concatenates groups of three sound files with pauses according to rows of file names in a tab-separated text file. In addition, here are some Praat scripts that I've written or modified: Although I made them to accompany a live presentation, the explanations on the slides and the sample scripts may still be useful for you. ![]() Pure tone generation Create 3 tone headphone screen (Woods et al.Click here for the materials from a Praat scripting tutorial I did for the IU Second Language Psycholinguistics Lab in 2019. txt file Extract info before underscore (to command window)Ĭoncatenating all files in a particular condition Open all files in a directory & concatenate them, saving a. Measurements Get intensity, duration, & mean f0 over 12 points of the vowel (Adapted from Christian DiCanio) Get duration measurements for each annotated word Get duration of vowel and coda for each wordĬombining sounds Concatenate 2 sounds (1 sound = frame) Concatenate all sounds in a directory Resample all files & combine with other soundĮxtract & save all sounds … from a force aligned file (finding “sp”s) and numbering sentences Split individual sounds from a word and save to directory from MFA output) to match original soundfileĪnnotations At each “sp”, label separate sentence interval (e.g., from FAVE align output) Mark silences (no context i.e., no FAVE or MFA) Get sentence from labeled word intervals (assumes you have (unlabeled) sentences in separate intervals from Above step) Speed up or slow down a soundfile + textgrid Multiply soundfile and textgrid by a duration factor Speed up / slow down textgrid (e.g. wav filesĪdding silence Pad beginning of the sound with silence Pad end of soundfile so that total duration is the same value (e.g., 900 ms) Concatenate sounds with a pause Add buffer to soundfile AND shift textgrid accordingly (currently adds 1/2 total duration to beginning) Adding noise Pad end of sound with 1 second of white noise (can adjust duration and intensity of noise) mp3 files (options to amplitude normalize, resample) and save as. wav Override sampling frequency Convert to short Text Grid Resample all files & combine with other sound Remove additional tiers (prepare for MFA)Īdjusting acoustic properties Change mean intensity of all files Match intensity contour of another sound Match vowel duration of another sound Match mean dB of another vowe l Match f0, intensity, & duration of another sound (combined script) Create duration continuum New monotone f0 for the whole sound New monotone f0 for selected vowels New mean f0 for sounds from a list (.txt file) Pull in all. TextGrid files to a directoryĬonverting Convert all files to mono Convert to stereo Convert from. wav files / associated TextGrids Save all. ![]() For a full list, see my Github: Loading / saving into Praat Load in all. ![]() Here are a few useful Praat scripts I’ve written / adapted from others. In addition to a GUI, you can write custom code. Praat(Boersma & Weenik, 2018) is one of the best computer programs for acoustic-phonetic analysis and manipulation of sound stimuli (and it’s free!). ![]()
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