The goal of this project is to provide a simple to use Text to Speech IRC bot. It's mainly focused on Twitch, but might be easily adapt to other IRC chats as well. Anyway, right now some parts are Twitch specific (like `CAP REQ :twitch.tv/commands twitch.tv/tags`). There are some other projects providing TTS for IRC based chats, like [IRC Radio (TTS)](https://play.google.com/store/apps/details?id=com.earthflare.android.ircradio&hl=en&gl=US), but they often are missing moderation features like Black-/Whitelists or deletion of single messages, before they are read. Therefore I created my own TTS bot, providing those features. Another very important aspect was that you should use almost any device capable running an HTML5-webbrowser as output. Therefore the bot uses a client-server "architecture". You can run the bot - for example - on your IRL server, but use your phone as output device. A mobile only solution always have the disadvantage of loosing messages, e.g. when your mobile connection drops.
The project consits of a very simple IRC client, which monitors the incoming messages. If a valid⃰ `!tts` command is detected the message will send into a queue. Depending on your config it will wait there a few seconds for deletion by you/your moderators. If nobody deletes the message, it will send into another queue. This queue will get fetched by the HTML frontend, which will be delivered by an internal webserver (backend). The HTML frontend will use the [Web Speech API](https://wicg.github.io/speech-api/) included in any modern webbrowser to read the incoming TTS message. When this is done it will report back to the webserver and the message will be removed from the queue.
The server part is written in Python. The TTS part is written in Javascript.
By using Javascript for the actual TTS part it's not only very easy to access the Web Speech API and the underlying Speech features of your OS, it also makes it possible to use a wide range of devices to actually play the TTS output. You can start the backend on your PC/Server and open the frontend on your Android/iOS tablet or Mobile Phone. If you expose the backend to the internet (I would recommend to use a reverse proxy, rather than exposing the backend directly) you can also use the TTS bot on the go (e.g. your IRL setup).
(⃰sender is not on the blacklist, message is not too long, etc.)
## Getting Started
### Dependencies
* Browser with Web Speech API support
* Web Speech API Voices (usually already included in your OS and/or browser)
* If you use `tts.py` see `requirements.txt`. If you use `tts.exe` all dependencies are included.
### Installing
1. Clone the repo, or download and unzip the newest [Release](https://gitlab.com/gpvkt/twitchtts/-/releases)
You can generate your `oauth_token` by leaving the value empty when starting `tts.exe/tts.py`. The integrated webserver will then provide an OAuth-Generator. Due to limitations to the `redirect_url` parameter used by twitch, this is only possible if you use Port `8080` or `80` as `http:bind`. If you use a different port, you will need to use another [Twitch OAuth Generator](https://html.duckduckgo.com/html/?q=twitch+oauth+token+generator). The bot will need `chat:edit` and `chat:read` permissions.
Please note that the `oauth_token` is valid for approximately 60 days. If it become invalid the bot will not connect anymore and you will have to renew the token.
Please note, the text output from `!wiki` might been shorter that the TTS output. This is due to the Twitch chat message length restriction. Therefore the `wikisentences` option might not have any effects, when `wikitts` is set to `False`.
Please also note that every `.` in the wikipedia result is counted as a sentence. This might cause issues with certain date-formats, e.g. if `wikisentences` is set to `1` and `bot:language` is set to `de` the command `!wiki douglas adams` will only return:
```text
Douglas Noël Adams (* 11.
```
Therefore the recommended minimum value for `wikisentences` is `3`.
Use this section to define key:value pairs of usernames. The first value is the Twitch username, the second value is how the bot should pronouce the user, when reading the message. This is helpfull if you have regulars with numbers or strangs chars in the name. You can add new/change entries on the fly without restarting the bot (changes took up to 60 seconds).
You can add a whitelist section to `config.yml`, a whitelist will override any other settings like `subonly` and `modonly`. Only users on the whitelist are allowed to use `!tts`. Broadcasters and mods can temporarily add users (including themselfs) to the whitelist by using the `!ptts` command, though.
To disable the whitelist, remove it from `config.yml` completely. If you just leave `whitelist:` without entries, everyone must be whitelisted using `!ptts` (even broadcaster and mods). The permit is temporary until the bot restarts or (whichever happens first) if the user is removed from the whitelist using `!dtts`.
Execute `tts.exe` (or `tts.py` if you have Python installed), open the TTS webpage in your browser (the URL depends on your `bind` and `port` configuration, usually it's just `http://localhost`). Click the `Init` button at the button of the TTS webpage (you should hear `Init complete`).
Connect to the configured Twitch channel and send a message starting with `!tts`. After a few seconds (depending on your `clearmsg_timeout` config), the message should be read.
You can use multiple files, if you call `!random foo` the bot fetch the random line from a file called `random_foo.txt`, `!random bar` will use the file `random_bar.txt` and so on. If no `<file>` is given the command use the file `random.txt`.
The voices available depend on your Operating System and/or browser. On some systems only a default voice is available and the `Select voice` dropdown might stay empty or will only show entries after you clicked the `Init` button. Some Android devices will show a huge list of voices, but sounds the same no matter which one you choose.
Feel free to use the [Issuetracker](https://gitlab.com/gpvkt/twitchtts/-/issues) or send an [E-Mail](mailto:contact-project+gpvkt-twitchtts-38486705-issue-@incoming.gitlab.com) if you experience any problems.
