Replies to post #16942 on Max Sound Corporation (MAXD)

[downdraft]

First of all, thanks kindly for the comment on my previous post.

I'll take a stab as why Netflix might have an interest, from a technical perspective.

What makes the MAXD technology unique, is using physics based code as a means to resynthesize a signal instead of just compressing it. And that signal doesn't have to be just audio.

It's easy to think of audio signals as a group of fundamental audio frequencies, but cameras look at the world and see frequencies as well, in the form of light. And that's where the power of the Digital Signal Processors (DSP's) come into play.

Since it's a fairly complex subject, I'll put it in layman's terms. The audio or video signal coming into the DSP gets converted from an analog signal to a digital signal. Years ago, these analog to digital converters were slow and of low resolution, like 8 bits.

For those who don't understand that, just take 2 the the 8th power to equal 256. That means an analog signal could be represented with any one of those 256 digital levels (0-255), making a smooth Sine wave, but sounding quite course.

However, the modern DSP's have high resolution A2D converters, allowing them to resolve the analog signals into much greater detail (finer resolution). Once the signal has been digitized, then those mighty DSP's can perform a Fast Fourier Transform (FFT), decomposing the signal into fundamental frequencies.

So unlike a compression algorithm that might convert a higher resolution digital signal (say from 16 bits to 8 bits) to lower resolution, or chopping off higher frequencies to lower the file size, when you have the fundamental audio or video frequencies that make up the original signal, then the algorithms can resynthesize the signals to make them more pleasing, while reducing the file size, whether it's for audio or video.

So the reasonable guess is that by using the same technology, we can reduce file sizes for companies that transmit audio or video!

And the nice thing about those DSP's, and the super-fast FFT's that they can perform, is that succeeding generations of DSP's should allow for the signal processing to get just that much better.

So how many levels of audio can a 16 bit digital signal represent? Yes, 2 to the 16th. Try it on your calculator. When digital music synthesizers came out, the sounds could only be represented with low resolution 8 bit digital signals. But nowadays, the DSP's have such great resolution and speed which allows a company like MAXD to create these type of algorithms for improving signal quality, whether that's audio or video.