Receive text from MQTT and TTS via Google TTS on Windows and Linux.

Ajustable syncronous say.

Tested on Windows 10 and Ubuntu 18.04.

Requirements

• Node.js
• mpg123 for Windows
• apt install mpg321 for Ubuntu
• gTTS

Install

Download and install Node.js.

Install gTTS:

pip install gTTS

For Windows: download cmd2mp3, place to PATH, or replace playCommand to your in command.

Clone this repository.

Install as Windows service

npm run install-windows

By default service run as user SYSTEM. This discard your gTTS and mpg123 paths.

Edit service for run as your user.

Install as Ubuntu service

Create /etc/systemd/system/mqtt2tts.service.

Edit your path:

[Unit]
Description=mqtt2tts
DefaultDependencies=no
After=network.target

[Service]
Type=simple
Restart=always
RestartSec=1
ExecStart=cd ~/projects/js/mqtt2tts && npm start
TimeoutSec=0
User=popstas

[Install]
WantedBy=multi-user.target

Then run systemctl enable mqtt2tts.service.

Config

• Copy config.example.js to config.js
• Edit config.js

Usage

npm start or just open node start.lnk.

Default host: localhost:1883.

Default MQTT topic: tts.

Tool will save mp3 to ./data directory for cache.

You can send message with timestamp: hello|1584547867492 and ajust gap variable, for syncronous say.

TTS accents

Support + as accent and , for pauses.

Linux bash verion

Requirements: gtts, playogg (ogg123 package).

Create tts-say script:

#!/bin/bash
set -eu

in="${1:-/dev/stdin}"

if [ "$in" = "/dev/stdin" ]; then
	while read line
	do
		line="$(echo "$line" | sed 's/^log //g')"
		echo "tts-say: $line"
		gtts-cli --nocheck --lang ru "$line" --output /tmp/tts.mp3
		playogg /tmp/tts.mp3
	done < "$in"
else
	gtts-cli --nocheck --lang ru "$in" --output /tmp/tts.mp3
	playogg /tmp/tts.mp3
fi

Usage:

echo "проверка" | tts-say