Hi,
I know there are a lot of posts, like this one http://www.raspberrypi.org/phpBB3/viewt ... 26&t=40872, about forcing audio output over the 3.5mm jack or HDMI. For example, if you have your Pi plugged into an HDMI TV input, but want audio to go to an external stereo system.
Is it possible (in Raspbian), to simultaneously force audio output over BOTH devices? I'd like to do this to blink LEDs to music (sending the analog signal to a breadboard with some transistors and LEDs) while relying on the TV for music. Technically you could do this with an audio splitter, to send the audio signal to both an external signal and a breadboard through the 3.5mm jack, but I don't want to require an external speaker.