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SAM is a Javascript adaptation of a 1982 speech software for the Commodore C64. It converts text to phonemes and synthesizes speech with adjustable pitch, speed, mouth and throat parameters.
- BetterSAM: Software Automatic Mouth
Better SAM Software Automatic Mouth. Text to speak: Pitch:...
- BetterSAM: Software Automatic Mouth
Better SAM Software Automatic Mouth. Text to speak: Pitch: Speed: Mouth: Throat: Preview Download. GitHub Code.-More features soon- Better SAM Software Automatic ...
Github Repository with the source code.
- Overview
- What is SAM?
- Compile
- Fork
- Usage
- Adaption To C
- Short description
- Reciter
- Output
- Final Output
Software Automatic Mouth - Tiny Speech Synthesizer
Sam is a very small Text-To-Speech (TTS) program written in C, that runs on most popular platforms. It is an adaption to C of the speech software SAM (Software Automatic Mouth) for the Commodore C64 published in the year 1982 by Don't Ask Software (now SoftVoice, Inc.). It includes a Text-To-Phoneme converter called reciter and a Phoneme-To-Speech routine for the final output. It is so small that it will work also on embedded computers. On my computer it takes less than 39KB (much smaller on embedded devices as the executable-overhead is not necessary) of disk space and is a fully stand alone program. For immediate output it uses the SDL-library, otherwise it can save .wav files.
An online version and executables for Windows can be found on the web site: http://simulationcorner.net/index.php?page=sam
Simply type "make" in your command prompt. In order to compile without SDL remove the SDL statements from the CFLAGS and LFLAGS variables in the file "Makefile".
It should compile on every UNIX-like operating system. For Windows you need Cygwin or MinGW( + libsdl).
Take a look at https://github.com/vidarh/SAM for a more refactored and cleaner version of the code.
type
for the first output.
If you have disabled SDL try
to get a wav file. This file can be played by many media players available for the PC.
you can try other options like -pitch number -speed number -throat number -mouth number
Some typical values written in the original manual are:
This program (disassembly at http://hitmen.c02.at/html/tools_sam.html) was converted semi-automatic into C by converting each assembler opcode. e. g.
Then it was manually rewritten to remove most of the jumps and register variables in the code and rename the variables to proper names. Most of the description below is a result of this rewriting process.
First of all I will limit myself here to a very coarse description. There are very many exceptions defined in the source code that I will not explain. Also a lot of code is unknown for me e. g. Code47503. For a complete understanding of the code I need more time and especially more eyes have a look on the code.
It changes the english text to phonemes by a ruleset shown in the wiki.
The rule " ANT(I)", "AY", means that if he find an "I" with previous letters " ANT", exchange the I by the phoneme "AY".
There are some special signs in this rules like # & @ ^ + : % which can mean e. g. that there must be a vocal or a consonant or something else.
With the -debug option you will get the corresponding rules and the resulting phonemes.
Here is the full tree of subroutine calls:
SAMMain() Parser1() Parser2() Insert() CopyStress() SetPhonemeLength() Code48619() Code41240() Insert() Code48431() Insert()
SAMMain() is the entry routine and calls all further routines. Parser1 transforms the phoneme input and transforms it to three tables phonemeindex[] stress[] phonemelength[] (zero at this moment)
This tables are now changed:
Parser2 exchanges some phonemes by others and inserts new. CopyStress adds 1 to the stress under some circumstances SetPhonemeLength sets phoneme lengths. Code48619 changes the phoneme lengths Code41240 adds some additional phonemes Code48431 has some extra rules
The wiki shows all possible phonemes and some flag fields.
Except of some special phonemes the output is build by a linear combination:
where rect is a rectangular function with the same periodicity like sin. It seems really strange, but this is really enough for most types of phonemes.
Therefore the above phonemes are converted with some tables to pitches[] frequency1[] = f1 frequency2[] = f2 frequency3[] = f3 amplitude1[] = A1 amplitude2[] = A2 amplitude3[] = A3
Above formula is calculated in one very good omptimized routine. It only consist of 26 commands:
Better SAM Software Automatic Mouth offers a text-to-speech tool with customizable pitch, speed, mouth, and throat settings.
Software Automatic Mouth, or S.A.M. (sometimes abbreviated as SAM), is a speech synthesis program developed by Mark Barton and sold by Don't Ask Software. The program was released for the Atari 8-bit computers, Apple II, and Commodore 64.
Sam is a very small Text-To-Speech (TTS) program written in C, that runs on most popular platforms. It is an adaption to Javascript of the speech software SAM (Software Automatic Mouth) for the Commodore C64 published in the year 1982 by Don't Ask Software (now SoftVoice, Inc.).
