Starts a shiny app for manually correcting formant measurements. For more
pitch_app and http://cogsci.se/soundgen.html.
Suggested workflow: load one or several audio files (wav/mp3), preferably not longer than a minute or so. Select a region of interest in the spectrogram - for example, a sustained vowel with clear and relatively steady formants. Double-click within the selection to create a new annotation (you may add a text label if needed). If you are satisfied with the automatically calculated formant frequencies, proceed to the next region of interest. If not, there are 4 ways to adjust them: (1) type in the correct number in one of the formant boxes in the top right corner; (2) click a spectrogram within selection (pick the formant number to adjust by clicking the formant boxes); (3) single-click the spectrum to use the cursor's position, or (4) double-click the spectrum to use the nearest spectral peak. When done with a file, move on to the next one in the queue. Use the orange button to download the results. To continue work, upload the output file from the previous session together with the audio files (you can rename it, but keep the .csv extension). Use hotkeys (eg spacebar to play/stop) and avoid working with very large files.
## Not run: formant_app() # runs in default browser such as Firefox or Chrome # To change system default browser, run something like: options('browser' = '/usr/bin/firefox') # path to the executable on Linux ## End(Not run)
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