Yuval on YouTube, page-41

@LifeStar

The fact that Yuval demonstrates it can play from 20hz through to 20khz is clear confirmation the tech works, and as expected the higher the frequency the louder the volume (i.e. per the frequency sweep recording). But as already mentioned it's not possible to know how loud a single chip is, particularly considering how the recording of the speaker was edited into the video (as Yuval explained and showed, due to using different mics for his voice and the speaker recording). Can't wait to listen to them in person, not long to go.