Right, sorry I stepped into the middle of things.Correct, and I have already reposted all that stuff from CA and Audiostream here in posts 103 and 104. I feel like we are going around in circles!
Right, sorry I stepped into the middle of things.Correct, and I have already reposted all that stuff from CA and Audiostream here in posts 103 and 104. I feel like we are going around in circles!
Yes, it uses a USB hub chip as the main active device (the device that regenerates the USB signal) - it's in the posts of Alex & John on CA forum.
I haven't seen the emphasises in the literature on the low jitter aspect of this clock that you perceive - maybe it's just a perception? However, I would imagine that the quality of this USB timing clock plays some role in the sound quality (just don't know how big a role)?
Yes, it uses a USB hub chip as the main active device (the device that regenerates the USB signal) - it's in the posts of Alex & John on CA forum.
I haven't seen the emphasises in the literature on the low jitter aspect of this clock that you perceive - maybe it's just a perception? However, I would imagine that the quality of this USB timing clock plays some role in the sound quality (just don't know how big a role)?
Right, yea, I forgot about that aspect - the timing of packets is important & I think the term "packet jitter" has been adopted to any mistiming.Jkenny,
The following statement from Alex made it sound like the regen clock is acting like an "audio clock" in a usb to spidf converter that outputs with a synchronized audio clock. This is what confused me.
"It is called “REGEN” since it completely REGENerates the data signals that cables are messing up—it’s not just a re-clocking. Because it uses clean power and a low jitter clock, the output of the hub has low noise and low jitter."
Right, yea, I forgot about that aspect - the timing of packets is important & I think the term "packet jitter" has been adopted to any mistiming.
Now before anybody takes this concept too literally & suggests that "packet jitter" is meaningless as the data is read into a buffer & clocked out of this buffer by an independent, locally situated, audio clock - let's look at the underlying operational principle of the Regen. It's main function is to improve the signal integrity (SI) of the USB signal just before it enters the USB audio device. The reason being that SI of the USB stream which is compromised in any way will cause extra work to be done by the USB PHY (the part of the USB receiver that handles the electrical signals & extracts a signal of a standardised quality from it).
This compromising of the SI can occur in many different ways, from many different sources - slight mistimings of the packets is one such way. The clock in the Regen is intended to rectify any mistimings while the USB signal is being regenerated/repacketised for sending onwards
Haha, good one, yesThis reminds me of the sports writer who was looking for some indepth analytical, deep in thought answer when he asked golfer Seve Ballesteros at the 1990 Masters how he managed to four putt the 16th green. Seve replied, "I miss, I miss, I miss, I make. Next question?"
Again, thanks for the straightforward answer. You clearly show the difference between someone who understands the issues at their core and someone who can only cut and paste. Much appreciated.
Are we getting lost in the details?
It either works and makes a positive difference or it doesn't.
In my system, it made a difference.
Ya Mike I never questioned that the regen works to fix packet noise problems.
I read that PS audio post about the Regen not working with the Hugo. I first heard the Regen on a Hugo and there was a very noticeable improvement in sound. It is clearly system dependent.
In my system paired with my Luxman DAC it sounds great. I also plan on trying a Jitter bug with the Regen. Just a side note here. I just bought a new Dell laptop with an I-7 and music sounds better than with my older HP laptop (both are running Windows 8.1) using a fast I-3 at 2.4gHz. There is more bass and better dynamic's.