Originally Posted by mr_fitz
What are the improvements with V1.32 over V1.31?
What improvements are there with ARC 1.2.1 vs 1.1?
I don't need to remeasure is that correct? Do I open the AnthemRoomCorrection Application and go to advanced and open my old settings? Then click targets, then auto detect and then calculate? Am I done other than uploading them?
The release notes are not out yet for D2 V1.32, so we don't really know what it does. It appears to have somewhat improved HDMI handshaking with my Comcast/Motorola HD-DVR. Also, either V1.31c or V1.32 are required to allow ARC V1.2.1 to fully verify the correctness of an Upload of ARC results. I've posted a few issues with V1.32 in the last couple pages.
The release notes for ARC V1.2 are in the text file that comes with that download. I've no idea what changed from V1.2 to V1.2.1WARNING: Be sure to disconnect or power off your subwoofer(s) before doing an Upload of ARC results from ARC V1.2.1. It generates LOUD pops on the subwoofer output during the "uploading room correction parameters" part of the process.
If you are satisfied that your prior ARC measurements match the new recommendations, then there is no need to re-measure for ARC V1.2.1. Just open the existing measurements file in Advanced mode, go into Targets and do an Auto Detect to get the advantage of the new algorithm for setting the default targets, accept the adjusted Targets, do a re-calculation, and do an Upload. Remember to Save User (and/or Installer) Settings after the Upload to get any adjusted cross overs or speaker levels into those memories.
The new recommendations for ARC measurements can be found in the new Section 3.15 of the D2 V1.3x Operating Manual (now available for download on the public download page). It includes two important changes. First Anthem is now saying that the mic positions should be spaced at least 24 inches apart (instead of 12 inches). Second, Anthem has clarified that the mic positions after the first position (which must be dead center at the main seating position) MUST ALTERNATE to either side of center.
That is #1 is dead center, #2 is to one side, #3 is to the other side, #4 is back to the #2 side, #5 is back to the #3 side, etc.
As before, Anthem points out that the mic height is critical. It should be at seated ear height -- and pointing straight up.
So again, if your prior measurements happened to have already been done this way, then there's no point in re-measuring. Just Auto-Detect, re-Calculate, and re-Upload.
Remember that you can use the Noise Level entry in the Setup / Speaker Calibration menu of the D2 to adjust the volume of the ARC test sweeps. If you are getting lots of retry requests, try raising the Noise Level by a few dB (it shouldn't take much).
In my case, my prior set of measurements were done at 18" spacing and with #2 and #3 on the same side and #4 and #5 on the other side.
I just redid the measurements using 30" spacing and alternating the mic sides as instructed. Based on the curves and the selected cross overs, it appears to have made a significant improvement in the Center speaker. I suspect my prior measurements made it harder for ARC to distinguish room response from inherent speaker performance for that speaker, even though it seemed to be able to do it just fine for the other speakers.
I've just started listening to the newly uploaded results, and the Center speaker does indeed seem to be improved. More later....
This time I also found I could do the Upload of ARC results using the Keyspan USB/Serial Adapter on Windows XP running in the Bootcamp environment on an Apple MacBook. Double checking the Setup menu shows the cross overs and speaker levels all seem to have transferred across properly.
So based on just this one try, it appears Anthem really did make some good improvements in the reliability of the ARC Upload process.