方法1：Festival Text to Speech

sudo apt-get install festival
echo “Just what do you think you're doing, Dave?” | festival --tts
speak RPi’s IP address:
hostname -I | festival -tts

方法2：Espeak Text to Speech

sudo apt-get install espeak
espeak -ven+f3 -k5 -s150 "I've just picked up a fault in the AE35 unit"

方法3：Google Text to Speech

sudo nano /etc/mplayer/mplayer.conf

添加一行

nolirc=yes

创建 speech.sh 脚本

nano speech.sh

内容如下：

#!/bin/bash
say() { local IFS=+;/usr/bin/mplayer -ao alsa -really-quiet -noconsolecontrols "http://translate.google.com/translate_tts?tl=en&q=$*"; }
say $*

脚本授权，执行脚本。

chmod u+x speech.sh
./speech.sh Look Dave, I can see you're really upset about this.

参考连接：http://elinux.org/RPi_Text_to_Speech_(Speech_Synthesis)