### Voicerss This TTS is based on the [VoiceRSS engine](http://www.voicerss.org/). [Official Documentation here](http://www.voicerss.org/api/documentation.aspx) > **Note:** This TTS engine do not work so far on python 3. This is due to the underlaying lib. We've proposed a fix to the project. You can follow the progress [here](https://bitbucket.org/daycoder/cachingutil/pull-requests/1/fix-python3-packages-paths/diff). | Parameters | Required | Default | Choices | Comment | |--------------|----------|----------------------|----------------------------------------------------------------------------------|-------------------------------------------------| | language | YES | | 26 languages (http://www.voicerss.org/api/documentation.aspx), example : "fr-fr" | Languages are identified by the LCID string | | key | YES | | | register in the official website to get API key | | rate | NO | 0 | any int | Audio Rate | | codec | NO | 'MP3' | 'MP3', 'WAV', 'AAC', 'OGG', 'CAF' | Audio Codecs | | audio_format | NO | '44khz_16bit_stereo' | 51 choices (http://www.voicerss.org/api/documentation.aspx), '8khz_8bit_mono' | Audio formats | | ssml | NO | False | True / False | True if you want ssml (only upgraded plans) | | base64 | NO | False | True / False | True if you want base64 | | ssl | NO | False | True / False | True if you want ssl | | cache | NO | True | True / False | True if you want to use the cache with this TTS | ### Notes limitations : 100KB per request The Free edition is limited to 350 daily requests. Possibility to [upgrade the plan](http://www.voicerss.org/personel/upgrade.aspx)