SpeechToSpeech

Speech to Speech Browser Application

The application uses IBM's speech recognition, machine translation, and voice synthesis capabilities to instantly translate speech to another language and read the translation aloud.

Node.js is used to provide the browser client's authentication token.

Give it a try! Click the button below to fork into IBM DevOps Services and deploy your own copy of this application on Bluemix.

Getting Started

Create a Bluemix Account

Sign up in Bluemix, or use an existing account. Watson Services in Beta are free to use.
Download and install the Cloud-foundry CLI tool
Edit the manifest.yml file and change the <application-name> to something unique.

---
declared-services:
speech-to-text-service-standard:
  label: speech_to_text
  plan: standard
language-translation-service:
  label: language_translation
  plan: standard
text-to-speech-service:
  label: text_to_speech
  plan: standard	
applications:
- name: <application name>
command: node app.js
buildpack: sdk-for-nodejs
path: .
memory: 256m
services:
- speech-to-text-service-standard
- language-translation-service
- text-to-speech-service

The name you use will determinate your application url initially, e.g. <application-name>.mybluemix.net.

Install Node.js
Install project dependencies and build browser application:

$ npm install
$ npm build

Connect to Bluemix in the command line tool.

$ cf api https://api.ng.bluemix.net
$ cf login -u <your user ID>

Create the following three services in Bluemix.

$ cf create-service speech_to_text standard speech-to-text-service-standard
$ cf create-service text_to_speech standard text-to-speech-service
$ cf create-service language_translation standard language-translation-service

Push it live!

$ cf push

See the full Getting Started documentation for more details, including code snippets and references.

Running locally

The application uses Node.js and npm so you will have to download and install them as part of the steps below.

Copy the credentials from your speech-to-text-service-standard, language-translation-service, text-to-speech-service services in Bluemix to app.js, you can see the credentials using:

$ cf env <application-name>

Example output:

System-Provided:
{
 "VCAP_SERVICES": {
  "language_translation": [
   {
	"credentials": {
	 "password": "lt-password",
	 "url": "https://gateway.watsonplatform.net/language-translation/api",
	 "username": "lt-username"
	},
	"label": "language_translation",
	"name": "language-translation-service",
	"plan": "standard",
	"provider": null,
	"syslog_drain_url": null,
	"tags": [
	 "watson",
	 "ibm_created",
	 "ibm_dedicated_public",
	 "ibm_deprecated"
	]
   }
  ],
  "speech_to_text": [
   {
	"credentials": {
	 "password": "stt-password",
	 "url": "https://stream.watsonplatform.net/speech-to-text/api",
	 "username": "stt-username"
	},
	"label": "speech_to_text",
	"name": "speech-to-text-service-standard",
	"plan": "standard",
	"provider": null,
	"syslog_drain_url": null,
	"tags": [
	 "watson",
	 "ibm_created",
	 "ibm_dedicated_public"
	]
   }
  ],
  "text_to_speech": [
   {
	"credentials": {
	 "password": "tts-password",
	 "url": "https://stream.watsonplatform.net/text-to-speech/api",
	 "username": "tts-username"
	},
	"label": "text_to_speech",
	"name": "text-to-speech-service",
	"plan": "standard",
	"provider": null,
	"syslog_drain_url": null,
	"tags": [
	 "watson",
	 "ibm_created",
	 "ibm_dedicated_public"
	]
   }
  ]
 }
}

You need to copy lt-username, lt-password, stt-username, stt-password, tts-username and tts-password.

Install Node.js
To install project dependencies, go to the project folder in a terminal and run:
```
$ npm install
```
Then, build the browser application:
```
$ npm build
```
Start the application:
```
$ node app.js
```
Go to: http://localhost:3000

Troubleshooting

To troubleshoot your Bluemix app the main useful source of information are the logs, to see them, run:

$ cf logs <application-name> --recent

License

This sample code is licensed under Apache 2.0. Full license text is available in LICENSE.

Contributing

See CONTRIBUTING.

Open Source @ IBM

Find more open source projects on the IBM Github Page

se000ra / SpeechToSpeech