REW Beta Release REW API beta releases

[Breeman]

Was trying to open an .mdat file with multiple measurements that was created with version 5.31.1. I get the error below when opening the file with the latest beta of version 5.40;

REW V5.40 Beta 27 running Azul Systems, Inc. JRE 1.8.0_412 64-bit on Windows 10 Locale: language en, keyboard ZA, windows-1252 at 96 DPI Running in C:\Program Files\REW
 

Message:
    java.util.ConcurrentModificationException
Stack Trace:
    java.util.ArrayList$Itr.checkForComodification(ArrayList.java:911)
    java.util.ArrayList$Itr.next(ArrayList.java:861)
    roomeqwizard.uE$_B.A(y:8145)
    roomeqwizard.uE$_B.done(y:7413)
    javax.swing.SwingWorker$5.run(SwingWorker.java:737)
    javax.swing.SwingWorker$DoSubmitAccumulativeRunnable.run(SwingWorker.java:832)
    sun.swing.AccumulativeRunnable.run(AccumulativeRunnable.java:112)
    javax.swing.SwingWorker$DoSubmitAccumulativeRunnable.actionPerformed(SwingWorker.java:842)
    javax.swing.Timer.fireActionPerformed(Timer.java:313)
    javax.swing.Timer$DoPostEvent.run(Timer.java:245)
    java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:311)
    java.awt.EventQueue.dispatchEventImpl(EventQueue.java:758)
    java.awt.EventQueue.access$500(EventQueue.java:97)
    java.awt.EventQueue$3.run(EventQueue.java:709)
    java.awt.EventQueue$3.run(EventQueue.java:703)
    java.security.AccessController.doPrivileged(Native Method)
    java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:74)
    java.awt.EventQueue.dispatchEvent(EventQueue.java:728)
    java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:205)
    java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
    java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
    java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
    java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
    java.awt.EventDispatchThread.run(EventDispatchThread.java:82)

 

[John Mulcahy]

Builds updated today (beta 28) with these changes:

• Changed: Deselecting a trace on an overlay graph does not remove it from the available traces
• Changed: Show a tooltip when over a measurement panel even if it has no notes
• Fixed: Some WAV files could not be read
• Fixed: Possible concurrent modification exception when loading mdat files
• Fixed: Disabled filters were included in Kali Santa Monica exported files

 

[sm52]

Changed: Deselecting a trace on an overlay graph does not remove it from the available traces

Now the names do not disappear. And not only in the overlay graphs, also in the ALL SPL legend. So convenient. Thank you.

Changed: Show a tooltip when over a measurement panel even if it has no notes

If the file name is short, it is already visible. If the name of the measurement inside the file is short, it is already visible. And if one of these two is long and not immediately visible, then I would like the full name of the file to be shown in the tooltip when hovering over the file name. The same thing happens when you hover over the name of a measurement inside a file. Is this possible?
Another question. As I understand it, now the note is filled in automatically, but whether it is shown in the tooltip or not depends on the checkbox in the settings. Right?

 

[HD MOVIE SOURCE]

Is there any way to stop it auto selecting every measurement again after you've taken a measurement? This happens in all SPL. If I only have two measurements selected, and then I take a measurement, every measurement gets selected after the measurement has finished.

 

[BassThatHz]

Builds updated today (beta 28) with these changes:

• Changed: Deselecting a trace on an overlay graph does not remove it from the available traces
• Changed: Show a tooltip when over a measurement panel even if it has no notes
• Fixed: Some WAV files could not be read
• Fixed: Possible concurrent modification exception when loading mdat files
• Fixed: Disabled filters were included in Kali Santa Monica exported files

I'm having a few issues with beta 27 for the measurement filters api

http://localhost:4735/measurements/1/filters
{"filters":
[
{"index":1,"type":"PK","enabled":true,"isAuto":false,"frequency":2990,"gaindB":-3.7,"q":3.282},{"index":2,"type":"PK","enabled":true,"isAuto":false,"frequency":5689,"gaindB":-1.2,"q":1.97},{"index":3,"type":"PK","enabled":true,"isAuto":false,"frequency":7870,"gaindB":-1.7,"q":2.778}
]}

It applies it, but the filters don't chart until I hover over the filter checkbox or click it. It doesn't refresh directly after the post.

Also, it doesn't set the EQ drop down types and q/gain textbox values, doesn't matter if I set auto to true or false.
It always shows as none auto.

 

[bmsorin]

Hello,
I use beta 28 an try to set the RTA FS sine Vrms and i get "500 Internal Server Error".
This is the payload:
curl -X PUT "localhost:4735/audio/input-cal" -H "accept: application/json" -H "Content-Type: application/json" -d "{ \"currentInputSelection\": \"sofhdadsp [plughw:0,0] Mic Boost (Mic Boost)\", \"separateCalFileForEachInput\": true, \"inputDeviceIsCWeighted\": true, \"perInputCalData\": { \"L\": { \"calFilePath\": \"\", \"dBFSAt94dBSPL\": -22.9897, \"fullScalSineVrms\": 2 }, \"R\": { \"calFilePath\": \"\", \"dBFSAt94dBSPL\": -22.9897, \"fullScalSineVrms\": 22.302275497784194 } }}"

 

[ManCaveAudio]

@John Mulcahy

I need your help to understand the phase difference calculation.

In the overlay, Phase Tab, my mains at the cross-over point show +60 degree and my subwoofer shows -135 degree and sometimes vice versa. Sometimes both are positive or both are negative degree.

I am confused about how to calculate phase offset to match my subwoofer with my mains at the crossover point.

Can you share a small formula to calculate?

It would be great if you could add any tool/ option in REW to give us the phase difference between the two measurements at the selected frequency point by itself.

 

[John Mulcahy]

As I understand it, now the note is filled in automatically, but whether it is shown in the tooltip or not depends on the checkbox in the settings. Right?

Nothing has changed about notes from earlier versions. Whether a measurement has notes inserted depends on what it is and how it was made, measurements made with a timing reference include delay information in notes, measurements saved from the RTA have notes about levels etc. The View preferences options control whether tooltips are displayed.

 

[John Mulcahy]

Is there any way to stop it auto selecting every measurement again after you've taken a measurement

New measurements are automatically selected when they are made. Existing selections are not affected.

 

[John Mulcahy]

I'm having a few issues with beta 27 for the measurement filters api

Updates happen as expected for me. There won't be any update if the measurement the filters are sent to isn't the currently selected measurement, of course.

 

[sm52]

measurements made with a timing reference include delay information in notes, measurements saved from the RTA have notes about levels etc

Thank you.

 

[John Mulcahy]

I use beta 28 an try to set the RTA FS sine Vrms and i get "500 Internal Server Error".

I have fixed that for the next build. Are you really using a C-weighted SPL meter as the input, by the way?

 

[John Mulcahy]

In the overlay, Phase Tab, my mains at the cross-over point show +60 degree and my subwoofer shows -135 degree and sometimes vice versa. Sometimes both are positive or both are negative degree.

If you do not have consistent phase results perhaps you are not measuring with a timing reference? The alignment tool is the best way to align, assuming you have control over sub delay, but again measurements must be made with a timing reference.

 

[John Mulcahy]

I'm having a few issues with beta 27 for the measurement filters api

I have found the problem now and fixed it for the next build. As a workaround in the meantime you can send the filters individually using a PUT to the same endpoint.

 

[ManCaveAudio]

If you do not have consistent phase results perhaps you are not measuring with a timing reference? The alignment tool is the best way to align, assuming you have control over sub delay, but again measurements must be made with a timing reference.

Thanks for your response.

I am using acoustic time reference. But when I try to align my Sub with mains, it gives me delay more than allowable limit in my Denon X4700h, hence I am trying to match phases at crossover points to get as much as positive sum.

Can you please share the formula how to calculate phase difference between two measurements at any point of frequency?

Any auto feature related to this calculation would be very helpful.

 

[ManCaveAudio]

Hi John, One suggetion. Can you inbuilt auto PEQ or GEQ for Yamaha, Denon or Marantz AVR like MiniDsp?

 

[John Mulcahy]

Can you please share the formula how to calculate phase difference between two measurements at any point of frequency?

There's little to it, phase difference is phase of A minus phase of B. You'd be best using the alignment tool to manually adjust delay within the range your receiver allows.

 

[John Mulcahy]

Hi John, One suggetion. Can you inbuilt auto PEQ or GEQ for Yamaha, Denon or Marantz AVR like MiniDsp?

You can use the configurable EQ to try and match whatever capabilities the units offer.

 

[HD MOVIE SOURCE]

New measurements are automatically selected when they are made. Existing selections are not affected.

This is not true.
Image 1 is before I take the measurement. I only have 2 measurements selected.
Image 2, after the next measurement has been taken, all measurements are now selected and displayed on-screen.

This is on the ALL-SPL screen.

 

[John Mulcahy]

I was referring to the measurement selections in the column on the left, but I understand what you are referring to now. I'll look at it.

 

[John Mulcahy]

Image 1 is before I take the measurement. I only have 2 measurements selected.
Image 2, after the next measurement has been taken, all measurements are now selected and displayed on-screen.

I have made a change for the next build to address that behaviour, but I don't like the ambiguity of having two places to select what traces appear on overlay graphs (All SPL is an overlay graph). That was why in the previous releases unchecking a trace in the overlay legend removed it, but I had considered removing those checkboxes completely so the list on the left is the only means of selecting overlay traces. That's much cleaner and removes any ambiguity, I may yet do that.

 

[sm52]

When there are 20 closely spaced graphs on the ALL SPL tab, the only way to see the graph I'm interested in is to uncheck it and turn it on. The list below is also convenient because there may be groups of charts that interest me at the moment. It's easy to see them there. It is very difficult to find a group on the left, and then enable or disable the desired graph, especially when the names are long.

 

[Dr.OP]

Can a USB-connected oscilloscope, like a PicoScope that offers an API for data streaming, be used in a feedback loop configuration? Specifically, the concept involves tapping into the output of a speaker and employing this setup for loopback. Is there a way to integrate REW with a PicoScope or another USB oscilloscope for this purpose?

 

[John Mulcahy]

Is there a way to integrate REW with a PicoScope or another USB oscilloscope for this purpose?

No.

 

[JoinUs]

@John Mulcahy Hello John.
I don't know about API things. Just admiring and using the new beta version of UI.
But some users seem to be using APIs to do something new automation. Is this something I can also create my own automated work?
All I want is work within REW.
Such as...
6 Impulse fetched REW
and I want to automatically apply A/B between the impulses I want, specify a certain value of t=0 in its results, and automatically align between specific results.
Can this be done with automation within REW? Of course I'm doing this manually, but I was curious when I saw the automation of some users.