Raspberry Pi – Text to Speech

Just a quick note on Speech Synthesis a Raspberry Pi project. I had to research some of the options on the Raspberry Pi while looking into a project where I need some audio announcements. Configuring Sound echo 'snd-bcm2835' >> /etc/modules sudo modprobe snd-bcm2835 sudo apt-get install mplayer alsa-base alsa-utils pulseaudio mpg123 # make mplayer use mpg123 codec instead of default ffmp3float echo "afm=mp3lib" >> ~/.mplayer/config Since I am using Raspbian which is a Debian based (Wheezy) Distribution I used some Ubuntu documentation (https://help.ubuntu.com/community/TextToSpeech) as the starting point. Festival sudo apt-get install festival festival-english echo "Hello World - Testing" | festival --tts Plus: Local install (no internet connection required) Minus: Mechanical sounding voice Espeak sudo apt-get install espeak espeak -v en "Hello World - Testing" Plus: Local install (no internet connection required) Minus: Mechanical sounding voice (slightly better than Festival) Google Translate Create a shell script tts.sh #!/bin/bash mplayer -ao alsa -noconsolecontrols "http://translate.google.com/translate_tts?tl=en&q=$*" > /dev/null 2>&1 chmot +x tts.sh ./tts.sh "Hello World - Testing" Plus: needs live internet connection Minus: excellent human sounding voice Google Speech API I will most likely look at this in the long run to get better control rather than calling the Google Translate url too much.

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