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benfaber

benfaber

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benfaber
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  • Bruce, Here's an excerpt from a recent blog post regarding SoundMeter's hardware support:(Quote) This should work the same on any iOS device that runs the current version of SoundMeter. Please let us know if you have other questions.
  • For the i436, you can follow these instructions. This assumes that the sensitivity of your i436 is 6.7 mV/Pa. You should substitute the factory-calibrated sensitivity that you received with your i436. Launch SoundMeter. Plug in the i436. Tap the ge…
  • The interrupted noise method is not currently supported, although it may be added as an option in a future update.
  • Data logging is coming within the next few weeks...
  • Richard, Are you referring to the tutorial on the blog (http://blog.faberacoustical.com/2013/mac/frequency-response-measurement-with-signalscope-pro-3-mac/)? (Quote) If you follow the tutorial, you will have the sweep set to repeat. You will also h…
  • (Quote) If you set the averaging type to Linear, the measurement will stop after the specified number of averages has been reached. I would recommend capturing the data after that. Your screenshots clearly indicate that you are not yet getting val…
  • gwarder, (Quote) Did you select the same (excitation) output channel for the Reference input (next to the Source input selection)? (Quote) If you have any other tools in your project, I would recommend just starting and stopping the DFFT Analyzer di…
  • SNR requires that one of the cursors be turned on. THD measurements require a cursor, plus at least 1 harmonic cursor.
  • H3nry, Version 3.4.2 addresses two issues that could potentially lead to excessive memory use. I would be interested to know if this version solves the issue you have been having. Ben
  • H3nry, How many input channels were you monitoring? Which input device were you using? Is this repeatable? Thanks, Ben
  • It turns out that the problem occurs when sandboxing is enabled for an app. Sandboxing is required for all app submissions to the Mac App Store, which is why this problem only affects the App Store version of the Toolbox. It would also seem that Tas…
  • I have acquired a Tascam US-144mkII for testing and can confirm that it does not appear in the device list in Electroacoustics Toolbox. At least now, I can start digging for a real solution to this problem.
  • Tascam's last version of the Mac drivers for the US-800 is 1.0.9, which has not been updated specifically for 10.8 (Mountain Lion). Is it possible for you to uninstall version 2.10 for the US-1800 and install version 2.0 instead? Maybe it's a Tasca…
  • What are you referring to by "latest software (2.10)"? I'm still baffled by this. Do you have any other audio apps running when you launch Electroacoustics Toolbox?
  • H3nry, I'm sorry for leaving you hanging. I still haven't been able to reproduce the problem, and I have been working with USB and FireWire audio interfaces, including a Tascam US-800. Does it matter whether you use an admin or non-admin account? …
  • What was the last version of the Toolbox that you know presented all your devices in the list?
  • H3nry, You are the second user to report this. I have never observed this issue on Mountain Lion, with either the App Store or non-App Store versions of Electroacoustics Toolbox. Did you download the Toolbox from the App Store? Are you aware of an…
  • IOScope is a dual-channel analysis tool, which means that it uses two channels to capture a single IR. It is not presently equipped to capture more than one IR at a time. If you need to acquire multiple IR's simultaneously, you might be interested …
  • redbox, I'm sorry you're having a tough time. Have you read the calibration tutorials in the Help files (you can access them from the Help menu in the app)? There are tutorials for input and output voltage calibration, as well as microphone calibr…
  • redbox, Have you also calibrated the voltage sensitivity of the audio input device your mic is connected to? If that voltage sensitivity isn't correct, then the acoustical measurement won't be correct, either. Ben
  • Jasonaudio, The high-pass filter is bypassed in our measurement apps as of iOS 6. You can learn more about this on the blog. Microphone sensitivity calibration is always recommended. However, if you don't have a microphone calibrator handy, it may…
  • I'm sorry SignalScope Pro crashed. Will you please provide additional details about when it crashed? Were you able to export the data to a file? How much data did you acquire? Since you mention rebooting without success, was the crash repeatable, o…
  • From your description, it appears that you are trying to capture data in the Oscope tool. You can adjust the time scale of the Oscope tool using a two-finger pinch/expand gesture within the time axis region of the plot (below the graph where the axi…
  • John, To see units other than FS and Pa, please ensure that you are working with an input source other than the built-in microphone. IOScope does not currently support arbitrary band limits on the built-in frequency sweep (i.e. it is a full bandwi…
  • djslice, These features have not yet been implemented on iOS, but we do plan to offer them in the future. Ben
  • audioguy, Please check out this recent post on the blog: http://blog.faberacoustical.com/2012/ios/iphone/finally-ios-6-kills-the-filter-on-headset-and-mic-inputs/ An app has to select the appropriate audio settings in iOS to disable the filter, wh…
  • Joe, Since it sounds like your goal is to perform frequency response measurements, I would recommend that you take a look at IOScope, which is a true dual-channel analyzer. It offers frequency response magnitude and phase, group delay, coherence, i…
  • (Quote) I have seen that sometimes, the difference channel (Ch2-Ch1) doesn't show up in the input channel list when using the hardware you mentioned (iPod touch 5, Mobile In, Lightning adapter). It should work however, if you restart the app and rec…
  • possum, It's not clear what you are hoping to see in a block diagram. Both channels of the headphone out and the microphone input all share the same common return path on the headset jack. High voltages are not recommended for the headset jack. B…
  • (Quote) Do you have any of the captured traces checked in the Captured Data Sources list? In the Display tab of the Controls drawer (at the bottom of the window), is the Draw column checked for the captured traces you are trying to display? Is the v…
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