drewfx1

BenMMusTech


Now even Presonus which have some of the best cheap interfaces on the market, I think if I remember rightly their converters use 114db of the 144db 24 bit spectrum, because they are so cheap and even though they claim to have low jitter specs, I still see the theory being of use because of the jitter problem and the distortion that jitter introduces.
 

Hmm. I wonder if I should point out that the level of jitter distortion is relative to the signal level, so if you have a hotter signal you get proportionally hotter jitter distortion too?

See we learn so much because I am an ass!! He Haw He Haw
 
Neb
 
Actually I'm going to find that digital myths thread

Ben good idea about checking my specs. I thought of that too. I use a Yamaha digital mixer 01V as my main central device and it handles all A to D D to A etc.

In the manual they say the settings are 16 bit and 24 bit. They do say however the maximum signal to noise ratio is in digital in / out mode and it is quoted as 110 db which is obviously referring to 24 bit mode. In another part of the spec they also say the equivalent input noise is -128 dB. Not sure how that relates to the 110 dB spec. There is also the S/N ratio of the whole mixer input mic pre (analog) to stereeo out (analog) and that is 98 dB

I also found out that the first 12 inputs that are analog are only 20 bit. So the A to D there is at 20 bit only. I did not know this. But that is still prety decent and I am not complaining.

Looks like Yamaha don't mind giving some specs related to this.

Yes so the whole ADDA becomes so weird and this is possibly why we still do not have 32 bit audio interfaces, they still haven't figured out how to make propper 24 bit converters.

The plot thickens!!!

Neb

As I understand it, almost none (perhaps actually none) of the interfaces sold as 24 bit actually achieve 24 bits of meaningful recording, and 20 bit is about standard.

As I understand it, almost none (perhaps actually none) of the interfaces sold as 24 bit actually achieve 24 bits of meaningful recording, and 20 bit is about standard.

Correct. The voltage levels recorded in the least-significant bits are so tiny they fall into the range of thermal self-noise in a resistor. The bottom 4 bits are therefore pretty much random noise.

Do not read this thread, it will give you a headache. There is a difference between 0dbFS and 0dBu. There is no source input that will let you acheive more than the convertor can handle which is 0dBu not the peak of 0dBFS which is just oversampling for something that you can not record into. You have no source input that can acheive anything such recording any better and you must not understand chips and convertors or anything else. The limit is 129E.I.N. or the bandwidth continues to go smaller and smaller and less and less. You can not acheive what they can not build.

Better take your pill, spacealf. You're getting that wild look in your eye again...

If you want a real headache, make yourself a pot of strong coffee, set aside a few hours and read this

I did read that mostly and I agree. I was just thinking to myself that despite the analog (and not the age) I like '60's recordings better. Why? Because to me they sounded more alive in the end, and today music ends up sounding overboard, something, just wrong to me with a lot of it. Well, each to their own in the end, but I fail to see the selling point of hammering heads against the wall like some music is today.