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Tools for Speech Analysis

Tools for Speech Analysis. How do we choose?. What kind of data? Which task?. Data. Speech content (noise, multivoice,…) Data File Sound/Transcription/PitchContour Sampling/Quantization 16k 12k 8k 4k 8bit Size: how much data? Format

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Tools for Speech Analysis

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  1. Tools for Speech Analysis

  2. How do we choose? • What kind of data? • Which task?

  3. Data • Speech content (noise, multivoice,…) • Data File • Sound/Transcription/PitchContour • Sampling/Quantization 16k 12k 8k 4k 8bit • Size: how much data? • Format • Sound: wav, wma, mp3, ogg, aiff, aifc, au, vox, raw, sd, CSL, Ogg/Vorbis, NIST/Sphere • Transcription types

  4. What tasks do we want to perform ? • Visualization and Editing: • Record, play, edit, mix, add effects • Analysis: • spectral, pitch, intensity • Speech manipulation: • Filtering, mixing, adding effects, prosodic manipulation • Annotation: • segmentation, labeling • Scripting: • Batch, communication with outside

  5. Sample Tasks • Create stimuli for an experiment (i.e. hybridization) • Create a database for TTS • Create a prosodic database • Analyze a speech corpus from experiment or ‘real’ recordings • Verify/correct an automatic segmentation or pitch track

  6. No Unique Speech Tool • No piece of software does everything • There are usually many ways of doing the thing you want to do

  7. Visualization/Edition Analysis Speech manipulation Annotation Scripting Plotting Supported formats Platform/installation Evolution/community Accessibility Price Features to Look For

  8. Possible Options • Goldwave (audio editor) • Esps Xwaves (routines + visual.) • Praat (speech analysis) • Wavesurfer (speech editor) • Transcriber (annotation tool) • Matlab (general purpose soft) • OGI speech tools (routines + app. dev.) • …winpitch, pitchworks, phonedit, cooledit…..

  9. Links • www.goldwave.com • www.speech.kth.se/software/#esps • www.praat.org • www.speech.kth.se/software/#wavesurfer • www.cse.ogi.edu/toolkit • www.mathworks.com (Matlab) • www.lpl.univ-aix.fr/~sqlab/ (phonedit) • www.sciconrd.com/pworks.htm (PitchWorks) • www.winpitch.com (WinPitch) • www.adobe.com (CoolEdit > Audition)

  10. Praat • Developed by Paul Boersma and David Weenink at the Institute of Phonetic Sciences, University of Amsterdam • General purpose speech tool : editing, segmentation and labeling, prosodic manipulation

  11. Praat • Pros: designed for speech analysis (not only sound edition or spectrogram visualization), nice GUI, scripting, active development and community, prosodic manipulation • Cons: limited scripting language, native format of transcription and pitch files

  12. File Management • Recording files and saving them • New menu • Opening files • Read menu • Long and short sound files • Other file types • Write menu

  13. Editing Options from Objects Window • View • Navigation • Spectrum: spectral slice, spectrogram • Pitch: settings, pitch information • Intensity: settings, intensity information • Formant: display controls, information

  14. Modifying the Data • Stylizing the pitch contour: • From Praat objects, Go to manipulation • Edit (the new object) • Pitch  stylize pitch (2st) • Then …. • Modifying pitch • Modifying duration

  15. Annotation: Textgrids • From objects • Annotate  To textgrid • Labeling • Point vs. interval tiers • NB: remember to select the interval or point first in the waveform or spectrogrambefore trying to insert a label

  16. Scripting • Automatic, from history • Ctrl  new Praatscript  Edit  Paste history • NB: you can run all or part of the script • Writing scripts

  17. Help • Online help, FAQ, manual • Links from http://www.praat.org • Additional tutorials, scripts, resources, user groups

  18. Files to Play With • http://www.cs.columbia.edu/~julia/cs4706/sounds

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