Hey everyone, I've seen several topics around called Sild, but this one is a whole new suggestion

SILD means: Speech Induced Lucid Dream.
The theory is: why not make an MP3 file, which is silent for like 45 minutes (don't know much about the REM cycle so you can suggest a better time) and then after 45 minutes, your own voice, saying at a very soft volume and voice: "hey, you are dreaming, why not become lucid?" or something similar. Since I haven't got much experience and also haven't had any LD's myself, is this a plausible method?