Read the rest of this update entry...This is the official release of V5.20, the version number is 5.20.1 to distinguish it from the release candidates. It will only be available here for the next week or so, then I will also add it to the REW website and enable the version detection to report it as available on REW startup. It has taken a tad longer than I expected to release 5.20 (more than 2 years longer!) but on the plus side it does have a lot of new features.
There are a few changes from V5.20 RC15:
- There is...
Thanks for the quick reply, John. There aren't any other preference files or legacy java files I need to remove as well? I saw the following .plist files were modified as well in my Library but does the REW node remove itself upon deletion? Can I delete all four of these files as well before I install 5.20.1?You can just drag it to the trash.
Copy that. Thanks again for quick reply (and for creating this software) -- about to dig in to 5.20.1!Both versions use the same Preferences node. If you have any other Java application that saves preferences those ndoes will also be in the java.utils.prefs.plist file.
Read the rest of this update entry...V5.20.2: A small update to add some checks to detect invalid impedance calibration results and fix a cosmetic bug on the Measure dialog.
- Check for mono input data in impedance measurements
- Check scale of measurement input vs ref input in impedance short circuit calibration to detect invalid results
- Bug fix: Rinput and Rleads labels and controls could appear on the Measure dialog when measuring SPL
Read the rest of this update entry...Changes in V5.20.3:
- Remember and restore the state of the ASIO secondary output selection
- Allow smoothing to be applied to RTA data (previously could only be applied to Spectrum data)
- Added a Resistance trace to the Impedance & Phase graph to show the real part of the impedance
- Bug fix: If multi-input capture was selected soundcard calibration would stop on the Measure dialog
- Bug fix: The watermark text field in the View settings was blank after restart
Buffers need to be filled. It doesn't work with multiple sweeps, you will be getting parts of different sweeps incorrectly merged.The latency isn't more than a few ms. Why would it work only with particular buffer settings and only when using multiple sweeps?
Per the message, it is waiting to hear the timing reference, which is a short high frequency sweep. Is output channel 1 (the ref output) connected to a speaker that has a tweeter?I tried again using the acoustic timing reference, but what happened was it did a sweep then got stuck here (at 9%):
Yes, this seemed to depend on the REW buffer setting, at settings higher than 64k the progress bar can get further than 50% before the first sweep happens, and any subsequent sweep just gets cut off. The only accurate measurements were made with no timing reference, or only when using a 32k buffer and multiple sweeps.It is difficult to reconcile "overall latency is 6 ms" with "the progress bar will often get halfway through before the sweep oscillator begins". When not using the timing reference REW starts the sweep (sends audio data to the OS) and starts capture (requests audio data from the OS) at the same time. The output has 100 ms of dither before the sweep starts, and there is 500 ms of silence after the sweep ends. The capture continues for a further 1 second after that, so losing the end of the sweep means latency is more than 1.5 seconds.
Please provide the details of the error, or attach a zipped copy of the REW log files folder.
No, 6 ms is not too much latency, less than 1500 ms is fine. Please attach the measurement mdat files.QUESTION: I have been using REW for years and never been confounded like this, is 6ms too much latency? the direct sweeps (bypassing the DUT) were all perfectly clean. What was I doing wrong here? Why were some buffer settings working and some not? I am not confused about the timing reference routing, etc, I've made hundreds of useful measurements with REW..