This page is about giving Dlexa a voice. It could be about buying an expensive weather tight speaker and mounting
on a stick but this is an experiment so even her voice needs to be DIY using a rare technology. The choice was
to build a DML Distributed Mode Loudspeaker.
Quick Test: Testing Area Versus Point Source Next
Quick Test:To test the DML using a music player (VLC) click the link in this web page sends an audio file (mp3) out a USB sound fob amplified on a Class-D amp so it plays on the DML speaker.
TestingMay 2023 tests showed the chain of electronics from the linux server through a USB sound card to a Class-D amplifier driving exciters on the foam (Formular) DMP speaker in the DML frame works.
Area Versus Point SourceA standard speaker is a "point source" of sound and like a single light bulb it is easy to identify its location. Filling a space with sound means using many speakers in specially constructed boxes so a listener at a distance hears and average sound. The "perfect" average is usually a small circle quite distant from the speakers array.
NextOnce the "sound infrastructure" is in place the linux server running Mycroft can speak. That done: what Dlexa and Pearl say becomes (just?) a programming problem.