HOLMImpulse: Measuring Frequency- & Impulse-Response

[Pano]

I don't believe that the mic cal is applied to imported files, just measured ones.
You may need to import the correction file into a measurement slot and use on of the functions to subtract it for your imported IR.

[more10]

Hi

I am struggling to get Holmimpulse (1.4.2.0 64 bit) working. I have followed this guide: HOW TO: Measure using HOLM and ARTA. But my graphs are too smooth to be real :-)

I have an M-Audio USB Fast Track Pro connected to a laptop with Windows 7 x64 SP1. The M-Audio drivers are 5.10.0.5134. I am using the ASIO API. The microphone is a Peavey PVR 2.

Sometimes I get a proper graph, but I have no clue why.

[wintermute]

yes that is a very strange looking curve. Have you done a loopback measurement? It should be pretty much ruler flat from about 20 Hz to 20Khz.

Tony.

[more10]

I think I have figured it out. This is when I use "Detect time zero". Much better results when using "Time zero locked". At least it works right now.

I have done sound card calibration. Since the curve is ruler flat I ticked it out if was a problem.

[AllenB]

That's it. Don't forget to set the options for that slot as well. You may need to set some of them for each measurement even if you need the same options.

[more10]

The loopback calibration is affected by "start frequency" and "detect time zero" settings.

[more10]

This has happened a few times for me. No other applications report this kind of error, so I don't believe this is a problem with my computer.

I am using Holmimpulse 1.4.2.0 64 bit. I have an M-Audio USB Fast Track Pro connected to a laptop with Windows 7 x64 SP1. The M-Audio drivers are 5.10.0.5134. I am using the ASIO API.

The error message:

See the end of this message for details on invoking
just-in-time (JIT) debugging instead of this dialog box.

************** Exception Text **************
System.AccessViolationException: Attempted to read or write protected memory. This is often an indication that other memory is corrupt.
at HOLM.WaveImExport.NumberToWaveFormat(Int32 )
at HOLM.HOLMImpulse.AudioHelper.PerformMeasurement(Me asurement* meas, String infoString)
at HOLM.HOLMImpulse.MainCtrl.Action_MeasStart(Object sender, EventArgs e)
at System.Windows.Forms.Control.OnClick(EventArgs e)
at System.Windows.Forms.Button.OnMouseUp(MouseEventAr gs mevent)
at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
at System.Windows.Forms.Control.WndProc(Message& m)
at System.Windows.Forms.ButtonBase.WndProc(Message& m)
at System.Windows.Forms.Button.WndProc(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.W ndProc(Message& m)
at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)


************** Loaded Assemblies **************
mscorlib
Assembly Version: 2.0.0.0
Win32 Version: 2.0.50727.5448 (Win7SP1GDR.050727-5400)
CodeBase: file:///C:/Windows/Microsoft.NET/Framework64/v2.0.50727/mscorlib.dll
----------------------------------------
HOLMImpulse
Assembly Version: 0.0.0.0
Win32 Version: 1, 4, 2, 0
CodeBase: file:///C:/Program%20Files/HOLM%20Acoustics/HOLMImpulse/HOLMImpulse.exe
----------------------------------------
msvcm90
Assembly Version: 9.0.30729.4940
Win32 Version: 9.00.30729.4940
CodeBase: file:///C:/Windows/WinSxS/amd64_microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.3072 9.4940_none_08e4299fa83d7e3c/msvcm90.dll
----------------------------------------
System.Windows.Forms
Assembly Version: 2.0.0.0
Win32 Version: 2.0.50727.5446 (Win7SP1GDR.050727-5400)
CodeBase: file:///C:/Windows/assembly/GAC_MSIL/System.Windows.Forms/2.0.0.0__b77a5c561934e089/System.Windows.Forms.dll
----------------------------------------
System
Assembly Version: 2.0.0.0
Win32 Version: 2.0.50727.5447 (Win7SP1GDR.050727-5400)
CodeBase: file:///C:/Windows/assembly/GAC_MSIL/System/2.0.0.0__b77a5c561934e089/System.dll
----------------------------------------
System.Drawing
Assembly Version: 2.0.0.0
Win32 Version: 2.0.50727.5420 (Win7SP1.050727-5400)
CodeBase: file:///C:/Windows/assembly/GAC_MSIL/System.Drawing/2.0.0.0__b03f5f7f11d50a3a/System.Drawing.dll
----------------------------------------
System.Deployment
Assembly Version: 2.0.0.0
Win32 Version: 2.0.50727.5420 (Win7SP1.050727-5400)
CodeBase: file:///C:/Windows/assembly/GAC_MSIL/System.Deployment/2.0.0.0__b03f5f7f11d50a3a/System.Deployment.dll
----------------------------------------
System.Xml
Assembly Version: 2.0.0.0
Win32 Version: 2.0.50727.5420 (Win7SP1.050727-5400)
CodeBase: file:///C:/Windows/assembly/GAC_MSIL/System.Xml/2.0.0.0__b77a5c561934e089/System.Xml.dll
----------------------------------------
System.Configuration
Assembly Version: 2.0.0.0
Win32 Version: 2.0.50727.5420 (Win7SP1.050727-5400)
CodeBase: file:///C:/Windows/assembly/GAC_MSIL/System.Configuration/2.0.0.0__b03f5f7f11d50a3a/System.Configuration.dll
----------------------------------------
yem4j9ub
Assembly Version: 0.0.0.0
Win32 Version: 2.0.50727.5447 (Win7SP1GDR.050727-5400)
CodeBase: file:///C:/Windows/assembly/GAC_MSIL/System/2.0.0.0__b77a5c561934e089/System.dll
----------------------------------------
voaozygv
Assembly Version: 0.0.0.0
Win32 Version: 2.0.50727.5447 (Win7SP1GDR.050727-5400)
CodeBase: file:///C:/Windows/assembly/GAC_MSIL/System/2.0.0.0__b77a5c561934e089/System.dll
----------------------------------------
Accessibility
Assembly Version: 2.0.0.0
Win32 Version: 2.0.50727.4927 (NetFXspW7.050727-4900)
CodeBase: file:///C:/Windows/assembly/GAC_MSIL/Accessibility/2.0.0.0__b03f5f7f11d50a3a/Accessibility.dll
----------------------------------------

************** JIT Debugging **************
To enable just-in-time (JIT) debugging, the .config file for this
application or computer (machine.config) must have the
jitDebugging value set in the system.windows.forms section.
The application must also be compiled with debugging
enabled.

For example:

<configuration>
<system.windows.forms jitDebugging="true" />
</configuration>

When JIT debugging is enabled, any unhandled exception
will be sent to the JIT debugger registered on the computer
rather than be handled by this dialog box.

[wintermute]

I was having the same problem. I think that one of the config files was corrupted, or possibly something in the autosave file. I ended up fixing it by deleting everything under c:\users\tony\Appdata\Roaming\Holm Acoustics\HolmImpulse (substitute your username )

Note that this clears everything, make sure you have backed up your measurements before you do it. It also will lose your calibration and any settings you have set. After doing this I have not had the crashes. I'm also running on win7 64 bit.

Tony.

[Pano]

Thanks Tony for the tip!

I run the M-Audio USB Fast Track Pro, but under Windoze XP. Have never seen this problem.

[_Wim_]

Could be the notorious Win 7 bug were folder are made readonly for an unknown reason. Please check the folder were the measurements are stored (and the installation folder) to ensure it is not a readonly folder.