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# VoiceRSS Text-to-Speech
# Overview
VoiceRSS is an Internet based TTS service hosted at https://api.voicerss.org (opens new window). You must obtain an API Key to get access to this service. The free version allows you to make up to 350 requests per day; for more you may need a commercial subscription.
For more information, see http://www.voicerss.org/ (opens new window).
# Samples
Replace API_KEY with your personal API key for simple testing of different API calls:
# EN
https://api.voicerss.org/?key=API_KEY&hl=en-us&src=Hello%20World
https://api.voicerss.org/?key=API_KEY&hl=en-us&c=WAV&src=Hello%20World
https://api.voicerss.org/?key=API_KEY&hl=en-us&f=44khz_16bit_mono&src=Hello%20World
https://api.voicerss.org/?key=API_KEY&hl=en-gb&f=44khz_16bit_stereo&src=Hello%20World
# DE
https://api.voicerss.org/?key=API_KEY&hl=de-de&f=44khz_16bit_mono&src=Hallo%20Welt
# Configuration
You must add your API_KEY to your configuration by adding a file "voicerss.cfg" to the services folder, with this entry:
apiKey=1234567890
It actually supports only one voice: "voicerss:default", which is configured to use 44kHz, mono, 16 bit sampling quality.
# Caching
The VoiceRSS extension does cache audio files from previous requests, to reduce traffic, improve performance, reduce number of requests and provide same time offline capability.
For convenience, there is a tool where the audio cache can be generated in advance, to have a prefilled cache when starting this extension. You have to copy the generated data to your userdata/voicerss/cache folder.
Synopsis of this tool:
Usage: java org.openhab.voice.voicerss.tool.CreateTTSCache <args>
Arguments: --api-key <key> <cache-dir> <locale> { <text> | @inputfile }
key the VoiceRSS API Key, e.g. "123456789"
cache-dir is directory where the files will be stored, e.g. "voicerss-cache"
locale the language locale, has to be valid, e.g. "en-us", "de-de"
text the text to create audio file for, e.g. "Hello World"
inputfile a name of a file, where all lines will be translatet to text, e.g. "@message.txt"
Sample: java org.openhab.voice.voicerss.tool.CreateTTSCache --api-key 1234567890 cache en-US @messages.txt
# Open Issues
- add all media formats
- add all supported languages
- do not log API-Key in plain text