Metadata-Version: 1.0
Name: promo
Version: 1.3.3
Summary: Library for manipulating pitch and duration in an algorithmic way, for resynthesizing speech
Home-page: https://github.com/timmahrt/ProMo
Author: Tim Mahrt
Author-email: timmahrt@gmail.com
License: LICENSE
Description: 
        -----------------------
        ProMo (Prosody Morph)
        -----------------------
        
        .. image:: https://travis-ci.org/timmahrt/ProMo.svg?branch=master
            :target: https://travis-ci.org/timmahrt/ProMo
        
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        -----
        
        A library for manipulating pitch and duration in an algorithmic way, for
        resynthesizing speech.
        
        This library can be used to resynthesize pitch in natural speech using pitch
        contours taken from other speech samples, generated pitch contours,
        or through algorithmic manipulations of the source pitch contour.
        
        .. sectnum::
        .. contents::
        
        Common Use Cases
        ================
        
        What can you do with this library?
        
        Apply the pitch or duration from one speech sample to another.
        
        - alignment happens both in time and in hertz
        
            - after the morph process, the source pitch points will be at the same
              absolute pitch and relative time as they are in the target file 
              
            - time is relative to the start and stop time of the interval being
              considered (e.g. the pitch value at 80% of the duration of the interval).
              Relative time is used so that the source and target files don't have to
              be the same length.
        
            - temporal morphing is a minor effect if the sampling frequency is high
              but it can be significant when, for example, using a stylized pitch
              contour with few pitch samples.
        
        - modifications can be done between entire wav files or between
          corresponding intervals as specified in a textgrid or other annotation
          (indicating the boundaries of words, stressed vowels, etc.)
        
            - the larger the file, the less useful the results are likely to be
              without using a transcript of some sort
              
            - the transcripts do not have to match in lexical content, only in the
              number of intervals  (same number of words or phones, etc.)
        
        - modifications can be scaled (it is possible to generate a wav file with
          a pitch contour that is 30% or 60% between the source and target contours).
        
        - can also morph the pitch range and average pitch independently.
          
        - resynthesis is performed by Praat.
        
        - pitch can be obtained from praat (such as by using praatio)
          or from other sources (e.g. ESPS getF0)
        
        - plots of the resynthesis (such as the ones below) can be generated
        
        
        Illustrative example
        ======================
        
        Consider the phrase "Mary rolled the barrel".  In the first recording
        (examples/mary1.wav), "Mary rolled the barrel" was said in response
        to a question such as "Did John roll the barrel?".  On the other hand,
        in the second recording (examples/mary2.wav) the utterance was said 
        in response to a question such as "What happened yesterday".
        
        "Mary" in "mary1.wav" is produced with more emphasis than in "mary2.wav".
        It is longer and carries a more drammatic pitch excursion.  Using 
        ProMo, we can make mary1.wav spoken similar to mary2.wav, even
        though they were spoken in a different way and by different speakers.
        
        Duration and pitch carry meaning.  Change these, and you can change the
        meaning being conveyed.
        
        ``Note that modifying pitch and duration too much can introduce artifacts. 
        Such artifacts can be heard even in pitch morphing mary1.wav to mary2.wav.``
        
        Pitch morphing (examples/pitch_morph_example.py):
        
            The following image shows morphing of pitch from mary1.wav to mary2.wav
            on a word-by-word level
            in increments of 33% (33%, 66%, 100%).  Note that the morph adjusts the
            temporal dimension of the target signal to fit the duration of the source
            signal (the source and generated contours are equally shorter 
            than the target contour).  This occurs at the level of the file unless
            the user specifies an equal number of segments to align in time
            (e.g. using word-level transcriptions, as done here, or phone-level
            transcriptions, etc.)
        
        .. image:: examples/files/mary1_mary2_f0_morph.png
           :width: 500px
        
        With the ability to morph pitch range and average pitch, it becomes easier
        to morph contours produced by different speakers:
        
            The following image shows four different pitch manipulations.  On the 
            **upper left** is the raw morph.  Notice that final output (black line) is
            very close to the target.  Differences stem from duration differences.
            
            However, the average pitch and pitch range are qualities of speech that
            can signify differences in gender in addition to other aspects of
            speaker identity.  By resetting the average pitch and pitch range to
            that of the source, it is possible to morph the contour while maintaining
            aspects of the source speaker's identity.
            
            The image in the **upper right** contains a morph
            followed by a reset of the average pitch to the source speaker's average
            pitch.  In the **bottom right** a morph followed by a reset of the speaker's
            pitch range.  In the **bottom right** pitch range was reset and then the
            speaker's average pitch was reset.
            
            The longer the speech sample, the more representative the pitch range and
            mean pitch will be of the speaker.  In this example both are skewed higher
            by the pitch accent on the first word.
        
            Here the average pitch of the source (a female speaker) is much higher
            than the target (a male speaker) and the resulting morph sounds like it
            comes from a different speaker than the source or target speakers.
            The three recordings that involve resetting pitch range and/or average
            pitch sound much more natural.
        
        .. image:: examples/files/mary1_mary2_f0_morph_compare.png
           :width: 500px
           
        Duration morphing (examples/duration_manipulation_example.py):
        
            The following image shows morphing of duration from mary1.wav to mary2.wav
            on a word-by-word basis in increments of 33% (33%, 66%, 100%).
            This process can operate over an entire file or, similar to pitch morphing,
            with annotated segments, as done in this example.
        
        .. image:: examples/files/mary1_mary2_dur_morph.png
           :width: 500px
        
        
        Tutorials
        ================
        
        Tutorials for learning about prosody manipulation and how to use ProMo are available.
        
        `Tutorial 1.1: Intro to ProMo <https://nbviewer.jupyter.org/github/timmahrt/ProMo/blob/master/tutorials/tutorial1_1_intro_to_promo.ipynb>`_
        
        `Tutorial 1.2: Pitch manipulation tutorial <https://nbviewer.jupyter.org/github/timmahrt/ProMo/blob/master/tutorials/tutorial1_2_pitch_manipulations.ipynb>`_
        
        
        Major revisions
        ================
        
        Ver 1.3 (May 29, 2017)
        
        - added tutorials
        
        - f0Morph() can now exclude certain regions from the morph process if desired
        
        Ver 1.2 (January 27, 2017)
        
        - added code for reshaping pitch accents (shift alignment, add plateau, or change height)
        
        Ver 1.1 (February 22, 2016)
        
        - f0 morph code for modifying speaker pitch range and average pitch
        
        - (October 20, 2016) Added integration tests with travis CI and coveralls support.
        
        Ver 1.0 (January 19, 2016)
        
        - first public release.
        
        Beta (July 1, 2013)
        
        - first version which was utilized in my dissertation work
        
        
        Requirements
        ==============
        
        ``Python 2.7.*`` or above
        
        ``Python 3.3.*`` or above (or below, probably)
        
        My praatIO library is used extensively and can be downloaded 
        `here <https://github.com/timmahrt/praatIO>`_
        
        Matplotlib is needed if you want to plot graphs.
        `Matplotlib website <http://matplotlib.org/>`_
        
        Scipy is needed if you want to use interpolation--typically if you have stylized
        pitch contours (in praat PitchTier format, for example) that you want to use in
        your morphing).
        `Scipy website <http://scipy.org/>`_
        
        Matplotlib and SciPy are non-trivial to install, as they depends on several large
        packages.  You can
        visit their websites for more information.  **I recommend the following instructions to
        install matplotlib** which uses *python wheels*.  These will install all required
        libraries in one fell swoop.
        
        On Mac, open a terminal and type:
        
            python -m pip install matplotlib
            
            python -m pip install scipy
            
        On Windows, open a cmd or powershell window and type:
        
            <<path to python>> -m pip install matplotlib
            
            <<path to python>> -m pip install scipy
            
            e.g. C:\\python27\\python.exe -m install matplotlib
        
        Otherwise, to manually install, after downloading the source from github, from a command-line shell, navigate to the directory containing setup.py and type::
        
            python setup.py install
        
        If python is not in your path, you'll need to enter the full path e.g.::
        
        	C:\Python27\python.exe setup.py install
        
        Usage
        =========
        
        See /examples for example usages
        
        
        Installation
        ================
        
        If you on Windows, you can use the installer found here (check that it is up to date though)
        `Windows installer <http://www.timmahrt.com/python_installers>`_
        
        Promo is on pypi and can be installed or upgraded from the command-line shell with pip like so::
        
            python -m pip install promo --upgrade
        
        Otherwise, to manually install, after downloading the source from github, from a command-line shell, navigate to the directory containing setup.py and type::
        
            python setup.py install
        
        If python is not in your path, you'll need to enter the full path e.g.::
        
            C:\Python36\python.exe setup.py install
        
        
        Citing ProMo
        ===============
        
        If you use ProMo in your research, please cite it like so:
        
        Tim Mahrt. ProMo: The Prosody-Morphing Library.
        https://github.com/timmahrt/ProMo, 2016.
        
        
        Acknowledgements
        ================
        
        Development of ProMo was possible thanks to NSF grant **BCS 12-51343** to
        Jennifer Cole, José I. Hualde, and Caroline Smith and to the A*MIDEX project
        (n° **ANR-11-IDEX-0001-02**) to James Sneed German funded by the
        Investissements d'Avenir French Government program,
        managed by the French National Research Agency (ANR).
        
Platform: UNKNOWN
