pro acoustic frequencies 1.2



Publisher Description



PRO-VERSION:
The APP captures the acoustic pressure by the internal microphone in function of time. The sampling frequency is always 8000 Hz.

Buttons arranged on the top:

Low: Low frequency resolution, for fast response
frequency resolution approx. 15.6 Hz

Med: Medium frequency resolution (only available in PRO-version)
frequency resolution approx. 3.9 Hz

High: High frequency resolution (only available in PRO-version)
frequency resolution approx. 1.0 Hz



Stop: Stops the measurement

Exit: Terminates the APP

Description of the graphics (from top to bottom):
1st graphic with sound level trend:
Sound level trend of the last 12 seconds, scaling from 0 dB to 90 dB.

By wiping across the 1st graphic (wiping always from bottom left to top right over the relevant graphic) the numerical current value is displayed.

2nd graphic with sound pressure in function of time

3rd graphic for tone identification:
If a clear tone within the frequency spectrum can be determined, the tone will be displayed with a red bar.

4th graphic with numerical peak-frequency and frequency spectrum:
The numerical frequencies of the three highest peaks will be displayed. For better reading you can stop the measurement with the "Stop"-button.

5th graphic third octave band analysis:
For acoustic assessments the third octave spectrum is used. The relevant frequency range from 100 Hz (limited due to the frequency response of the internal microphone) to 3150 Hz (limited due to the sampling frequency) is displayed.
Only available in PRO-version:
The frequency response of the internal microphone was calibrated in a diffuse sound field to a reference device. This calibration has been performed on a Samsung Galaxy S2. The displayed third octave dB-values include this correction and the A-weighting.

Other implemented wiping gestures:

Ultra high frequency resolution (only available in PRO-version):

By wiping across the 4th graphic (wiping always from bottom left to top right over the relevant graphic) an ultra-high frequency resolution will be activated, frequency resolution approx. 0.5 Hz.

Higher integration time (only available in PRO-version):
By wiping across the 5th graphic (wiping always from bottom left to top right over the relevant graphic) the averaging time of the displayed third octave values is increased by a factor of 5.

Show internal diagnostic data:
By wiping across the complete display (wiping always from bottom left to top right) internal data is displayed in the lower part of the display.

For more details:
http://www.hs-koblenz.de/profile/kroeber/

Keywords: acoustic, frequency, tone detection, frequency analysis, third octave analysis, dBA, FFT


About pro acoustic frequencies

pro acoustic frequencies is a paid app for Android published in the Audio File Players list of apps, part of Audio & Multimedia.

The company that develops pro acoustic frequencies is Kröber. The latest version released by its developer is 1.2.

To install pro acoustic frequencies on your Android device, just click the green Continue To App button above to start the installation process. The app is listed on our website since 2017-11-19 and was downloaded 12 times. We have already checked if the download link is safe, however for your own protection we recommend that you scan the downloaded app with your antivirus. Your antivirus may detect the pro acoustic frequencies as malware as malware if the download link to com.kroeber.pro_acoustic_frequencies is broken.

How to install pro acoustic frequencies on your Android device:

  • Click on the Continue To App button on our website. This will redirect you to Google Play.
  • Once the pro acoustic frequencies is shown in the Google Play listing of your Android device, you can start its download and installation. Tap on the Install button located below the search bar and to the right of the app icon.
  • A pop-up window with the permissions required by pro acoustic frequencies will be shown. Click on Accept to continue the process.
  • pro acoustic frequencies will be downloaded onto your device, displaying a progress. Once the download completes, the installation will start and you'll get a notification after the installation is finished.



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Users Rating:  
  0.0/5     0
Downloads: 12
Updated At: 2024-03-19
Publisher: Kröber
Operating System: Android
License Type: Paid