Originally Posted by khaos974
I's still like to know how it works though, apparently, it's not EQ or adding subharmonics, and a short search on psophometric filtering brings next to nothing.
Of course, I'm not asking for an extremely detailed explanation, a general overview of the principle would be satisfy my curiosity and that of many forumers here.
I'm a bit surprised there is no vst plugin, maybe there's an RTAS version? If there's a means to make songs more bassy without affecting quality through many transducers, there would be a large market in the musical industry, enough to justify patenting the idea (if it's not done yet). Many music producer would be inclined to directly include this in the master of the songs.
We just put together (hopefully) a better description of what the ZO does for those of you that are interested:
But first, a little clarification: the ZO does add about 4-5dB of overall gain, and up to 20dB of dynamic gain. Therefore, a secondary headphone amp is not required to drive higher impedance phones.
Now, on to the more detailed stuff: Unlike an EQ, the ZO doesn’t increase or decrease the volume of bass; instead, it allows the user to select from 32 different “frequencies of emphasis” in the range from 60Hz down to 20Hz. Along with each of these frequencies, a corresponding sound contour profile is engaged (see image below), which balances the energy of midrange frequencies and maintains their presence within the track. In the ZO, the midrange contour frequencies extend upwards as high as 3kHz. Therefore, if the audio track contains frequencies encompassed by the frequency of emphasis and its associated contour frequencies, they will emphasized accordingly. Otherwise, no emphasis will occur (i.e., the ZO does not add bass, it only responds to the frequencies contained within the track). The end result is vitalized and balanced sound.
You guys may notice the image below includes some lift on the high end as well. Don't tell my boss that I let you guys in on this, but that is the second half of the technology... It gives a whole new level of WOW factor beyond just the ZO.