For a project I’m working on, one of the objectives is that the RPi be able to “speak” – just to have some fun.
The RPI can output audio through HDMI and the 3.5mm audio jack. Since I’m going to use the RPi for a small robot, the HDMI audio capabilities are of no interest. So, it only leaves the 3.5MM audio jack, but there’s a problem. The audio is not amplified. For some headphones it’s fine, but for a talking robot, the audio volume is just to low.