IBM Watson Text-To-Speech PHP Library

Convert written text into natural-sounding audio in a variety of languages and voices.
This package use IBM Watson Text To Speech service.

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Using the Library

Installation

Intall library in PHP project using composer

composer require tbetool/ibm-watson-tts

Using Library

After installing the library, create WatsonTts object

$watson = new WatsonTts(
    'watson_username', 
    'watson_password', 
    'watson_url'
);

Watson username, password, url can be obtained by creating an instance of service. For more detail follow Getting Started Guide.

Setting output path

Set absolute path of the directory where to save the output. You don't need to provide a file name as it will be auto generated.

$path = '/aboslute/path/to/directory';

$watson->setOutputPath($path);

Convert Text to Speech

Pass text to convert to speech.

$file = $watson->tts('Hello World');

This will return the absolute path of the file created if text to speech conversion is successful, otherwise will throw Exception.

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Exception handling

Every function throws an Exception in case of any error/issue. Bind the code block within try-catch block to catch any exception occurred.

Ex:

try {
    $watson->setAudioFormat('mp3');
} catch (Exception $exception) {
    echo $exception->getMessage();
}

will throw and exception Not a valid audio format. Allowed formats: wav, ogg as mp3 audio format is not supported as of now

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Other callable methods

Set Audio Format

$watson->setAudioFormat('wav');

allowed formats: wav, ogg
default: wav

Set Language

$watson->setLanguage('en-US');

allowed languages: See List   default: en-US

Set Voice

$watson->setVoice('MichaelVoice');

allowed voices: See List
default: MichaelVoice

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Supported language and voice list

list of supported language and voice strings

Name	language	voice	gender	description
es-LA_SofiaVoice	es-LA	SofiaVoice	female	Sofia: Latin American Spanish (español latinoamericano) female voice.
pt-BR_IsabelaVoice	pt-BR	IsabelaVoice	female	Isabela: Brazilian Portuguese (português brasileiro) female voice.
en-GB_KateVoice	en-GB	KateVoice	female	Kate: British English female voice.
de-DE_BirgitVoice	de-DE	BirgitVoice	female	Birgit: Standard German of Germany (Standarddeutsch) female voice.
en-US_AllisonVoice	en-US	AllisonVoice	female	Allison: American English female voice.
fr-FR_ReneeVoice	fr-FR	ReneeVoice	female	Renee: French (français) female voice.
it-IT_FrancescaVoice	it-IT	FrancescaVoice	female	Francesca: Italian (italiano) female voice.
es-ES_LauraVoice	es-ES	LauraVoice	female	Laura: Castilian Spanish (español castellano) female voice.
ja-JP_EmiVoice	ja-JP	EmiVoice	female	Emi: Japanese (日本語) female voice.
es-ES_EnriqueVoice	es-ES	EnriqueVoice	male	Enrique: Castilian Spanish (español castellano) male voice.
de-DE_DieterVoice	de-DE	DieterVoice	male	Dieter: Standard German of Germany (Standarddeutsch) male voice.
en-US_LisaVoice	en-US	LisaVoice	female	Lisa: American English female voice.
en-US_MichaelVoice	en-US	MichaelVoice	male	Michael: American English male voice.
es-US_SofiaVoice	es-US	SofiaVoice	female	Sofia: North American Spanish (español norteamericano) female voice.

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Bug Reporting

If you found any bug, create an issue.

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Support and Contribution

Something is missing?

• Fork the repositroy
• Make your contribution
• make a pull request