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speech

Project description

deep throat

introduction

Deep throat is a Python program that can generate speech. A simple approach to unrestricted text-to-speech translation uses a small set of letter-to-sound rules, each rule specifying a pronunciation for one or more letters in some context. Deep throat features a small set of letter-to-sound rules that translate English text to phonemes producing usably accurate pronunciations of words. Deep throat can produce sounds by combining stored representations of phoneme sounds in accordance with generated phoneme translations. It can output these sounds to computer sound hardware using PortAudio and it can save them to WAVE file.

Deep throat can accept text as a command line option argument, from a pipe and it can be set into an interactive mode.

Deep throat can be set to read the date and time in various ways, such as in a loop. It can translate text to phonemes, it can translate specified phonemes to sounds and it can translate numbers to English text. It can engage visual and sound analyses.

setup

sudo apt-get -y install libasound-dev
sudo apt-get -y install portaudio
sudo apt-get install python-pyaudio
sudo apt-get install python3-pyaudio
#sudo pip install pyaudio

phonemes

There are data for 36 phonemes defined in deep throat:

phonemes

space

A

B

D

F

G

H

J

K

L

M

N

P

R

S

T

U

V

W

Y

Z

AE

AH

AW

CH

EE

EH

IH

OH

OO

SH

TZ

TH

UH

WH

ZH

letter-to-sound rules

Deep throat letter-to-sound rules rules are defined in strings in a form easy for humans to read and write. Rules have the form A/B/C/D. The character string, occurring with left context A and right context C, gets the pronunciation D. Some simple example rules are as follows:

ARE/ / /AH-R
FIRST/ //F-U-R-S-T
COMPUTER/ //K-AH-M-P-Y-OO-T-OH-R
SHITFACED/ //S-H-IH-T-F-A-S-D"

visual and sound analyses

The visual analysis mode saves histograms of all of the phonemes, saves multigraph comparisons of phonemes of different resolutions and saves graph comparisons of phonemes data and fast Fourier transform synthesized phonemes data. The sound analysis mode speaks the 50 most frequent Brown Corpus words.

usage examples

command

comment

deep_throat.py -- help

help with options and arguments

deep_throat.py --text="hello world"

speak specified text

deep_throat.py --timeloop

speak time in a loop

deep_throat.py --infile="text.txt"

speak input text file

deep_throat.py --text="hello world" --savetowave file --outfile="test.wav"

save text to WAVE file

echo "test" | deep_throat.py

speak pipe text

deep_throat.py --interactive

engage interactive mode

deep_throat.py --analysisvisual

engage visual analysis mode

deep_throat.py --analysissound

engage sound analysis mode

future

Under consideration is phonemes data of higher resolution and system checks (such as PortAudio checks).

references

  • H. S. Elovitz, R. W. Johnson, A. McHugh and J. E. Shore, Automatic Translation of English Text to Phonetics by Means of Letter-to-Sound Rules, Naval Research Laboratory Report 7948 (21 January 1976)

  • H. S. Elovitz, R. Johnson, A. McHugh and J. Shore, Letter-to-Sound Rules for Automatic Translation of English Text to Phonetics, IEEE Transactions on Acoustics, Speech, and Signal Processing, Volume. ASSP-24, Number 6 (December 1976)

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