Festival TTS

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Contents

Getting Started

• Festival Speech Synthesis System - http://www.cstr.ed.ac.uk/projects/festival/
• build on os x with do_prompt capabilities - http://linguisticmystic.com/2011/07/15/using-festival-tts-on-os-x/
  • http://permalink.gmane.org/gmane.science.tts.festvox/381
• this is a class - http://www.speech.cs.cmu.edu/15-492/assignments/tts/index.html

Learning

• Book - http://festvox.org/festvox/book1.html
• short tutorial - http://festvox.org/festtut-2.0/
• exercises and hints - http://festvox.org/festtut-2.0/exercises/

Slides on HTS Synthesis

• http://www.sp.nitech.ac.jp/~tokuda/tokuda_iscslp2006.pdf

Training Voice Models

• howto http://festvox.org/festvox/c3170.html#AEN3172
• training text input - http://www.festvox.org/cmu_arctic/cmuarctic.data
• useful tips http://festvox.org/index.html, including name for EMU speech database system http://www.shlrc.mq.edu.au/emu/
• Building a CLUSTERGEN Statistical Parametric Synthesizer: http://festvox.org/festvox/c3170.html#AEN3172

Building a Unit Selection Cluster Voice

(from here http://festvox.org/festvox/x3082.html)

1. mkdir uw_uw_rdt

cd uw_uw_rdt

1. uniphone setup:

    $FESTVOXDIR/src/unitsel/setup_clunits uw us rdt uniphone

2. generate prompts and prompt files:

   festival -b festvox/build_clunits.scm '(build_prompts_waves "etc/uniphone.data")'

3. record sound, using audacity. save as 16k, 16bit mono.
4. make labels:

   ./bin/make_labs prompt-wav/*.wav

5. build utterance structure:

   festival -b festvox/build_clunits.scm '(build_utts "etc/uniphone.data")'

6. do pitch marking:

   ./bin/make_pm_wave etc/uniphone.data

7. find Mel Frequency Cepstral Coefficients:

   ./bin/make_mcep etc/uniphone.data

8. build cluster unit selection synth:

   festival -b festvox/build_clunits.scm '(build_clunits "etc/uniphone.data")'

Using a Unit Selection Cluster Voice Synth

1. from uw_us_rdt directory:

   festival festvox/uw_us_rdt_clunits.scm

2. in Scheme:

   (voice_uw_us_rdt_clunits) 

3. (SayText "this is a little test.")

Building a CLUSTERGEN Statistical Parametric Synthesizer

adapted from http://festvox.org/festvox/c3170.html#AEN3172

1. mkdir uw_us_rdt_arctic

2. cd uw_us_rdt_arctic

3. $FESTVOXDIR/src/clustergen/setup_cg uw us rdt_arctic

4. copy text into

   etc/txt.done.data

   . use some of the lines from here http://www.festvox.org/cmu_arctic/cmuarctic.data
5. copy audio files into

   wav/

6. use

   bin/get_wavs

   to copy files to power normalize and convert to proper format.

Building a Unit Selection Cluster Voice from TIMIT data

(from here http://festvox.org/festvox/x3082.html)

1. mkdir uw_uw_rdt_timit

2. cd uw_uw_rdt_timit

3. timit setup:

    $FESTVOXDIR/src/unitsel/setup_clunits uw us rdt timit

4. generate prompts and prompt files:

   festival -b festvox/build_clunits.scm '(build_prompts_waves "etc/timit.data")'

5. record sound, using audacity. save as 16k, 16bit mono.
6. copy sound files from recording directory into voice directory.

    ./bin/get_wavs ~/Sounds/TIMIT_Training_Data/warehouse_omni/*.wav 

7. make labels:

   ./bin/make_labs prompt-wav/*.wav

8. build utterance structure:

   festival -b festvox/build_clunits.scm '(build_utts "etc/timit.data")'

9. do pitch marking:

   ./bin/make_pm_wave etc/timit.data

10. find Mel Frequency Cepstral Coefficients:

    ./bin/make_mcep etc/timit.data

11. build cluster unit selection synth:

    festival -b festvox/build_clunits.scm '(build_clunits "etc/timit.data")'

Improving Quality

• Fix phoneme labeling - http://sourceforge.net/projects/wavesurfer/
• tuning a voice - http://www.cstr.ed.ac.uk/emasters/summer_school_2005/tutorial3/tutorial.html

Using Voices

using meghan voice

Run the Server

• open terminal:

cd /Users/murmur/Desktop/meghan 
festival_server -c meghans_special_sauce.scm

• To kill the server:

Control-C

Run the Client

• open a 2nd terminal window:

cd /Users/murmur/Desktop/meghan 
festival_client myfile.txt --ttw --output client_test.wav

• Other stuff (python):

import os
os.popen("/Applications/festival_2.1/festival/src/main/festival_client /Users/murmur/Desktop/meghan/myfile.txt --ttw --output /Users/murmur/Desktop/meghan/client_test78.wav")

Using A Newly Trained Voice

Modify the voice so festival knows it's there

• append proclaim message to your newly trained model uw_us_rdt_clunits.scm in uw_us_rdt_clunits/festvox:

(proclaim_voice
 'uw_us_rdt_clunits
 '((language english)
   (gender male)
   (dialect american)
   (description
    "This is Robert Twomey trained on CLUNITS, TIMIT databse.")))

(provide 'uw_us_rdt_clunits)

Install voice to festival directory

• http://roberttwomey.com/downloads/uw_us_rdt_clunits.tar.gz
• unzip file from festival root directory, it should install to the correct directory
• copy your newly trained voice to festival/lib/voices/english/
• the name of your new voice directory (ex: uw_us_rdt_clunits/) needs to match the voice file (ex: uw_us_rdt_clunits/festvox/uw_us_rdt_clunits.scm)

Configure festival to use your voice by default

• to set your voice as default (and add a special pause entry), add the following to festival/etc/siteinit.scm:

(set! voice_default 'voice_uw_us_rdt_clunits)

(lex.add.entry '("<break>" n (((pau pau) 0))))

• the lex.add.entry line makes a new word in the lexicon <break> that adds a pause.
• run festival_server and it will load your new voice by default
• http://www.cstr.ed.ac.uk/projects/festival/manual/festival_24.html

Add a pause as a new lexical entry

• add the following after (provide 'siteinit) in festival/etc/siteinit.scm:

(voice_uw_us_rdt_clunits)

(lex.add.entry '("<break>" n (((pau pau) 0))))

• this will add a new word, "<break>" that is synthesized as a brief pause in speech.

Using Voice on Raspberry Pi

• install with apt-get. alternatively, follow these instructions: http://elinux.org/RPi_Text_to_Speech_(Speech_Synthesis)
• With festival 2.1
• copy the voice data into /usr/share/festival/voices/english
• edit /usr/share/festival/voices.scm and add the new voice uw_us_rdt_clunits at the beginning of the default-voice-priority-list. (end of the file)
• now your new voice should be the default for festival.

Tuning phrasing, prosody, etc with SABLE

• http://www.cstr.ed.ac.uk/projects/festival/manual/festival_10.html#SEC31

Using Festival

Run the Server

• from anywhere: festival_server

Run the Client

• run the client: echo "Do you really want to see all of it?" | festival_client --ttw --output test.wav
• generates a wave file

Synthesize Speech to Audio Out

• run festival: echo "test this" | festival --tts
• plays through speakers.

Render a Text File In Speech

• run the server
• run the client: cat ~/Documents/speech\ performance/speech\ performance\ structure.txt | festival_client --ttw --output structure.wav

Phoneme tests

Switch voices:

(voice_kal_diphone)

Switch back:

(voice_uw_us_rdt_clunits)

Pronounce phonemes:

(SayPhones '(pau ch pau m ay n ey m ih z r ah b er t pau))

(SayPhones '(pau ch pau m ay n ey m ih z r ow b er t pau))

(SayPhones '(pau ch pau m ay n ey m ih z r ow b ah t pau))

(SayPhones '(pau ch pau m ay n ey m ih z r ah b ah t pau))