AudioTool | Spectrum Analyzer, Signal Generator and Polarity Tester



Rep: (2118)
Audiotool
version: 8.4

Last update of the program in the header:04.04.2020

Attached Image

Screenshots
Attached Image
Attached Image
Attached Image
Attached Image

Short description:
Spectrum Analyzer, Signal Generator and Polarity Tester

Description:
Features 1/1, 1/3 & 1/6 octave RTA modes, RT60 (wideband, Octave), spectrogram, peak frequency, Fast, Medium & Slow filters, Flat & A / C Weighting, Averaging, SPL Chart Recorder, Noise Criteria , White / Pink Noise, Sine, Square, Triangle, Sweep, Ramp and Impulse signals & loudspeaker polarity checker. Frequency spectrum store & load, von Hann windowing, "Keep Screen On".
Now with ISO Octave Calibration feature - correct for your phone's microphone response! Move the calibration discs up or down so as to obtain a flat response, and match the overall SPL to that of an external meter.
Use: home theater, audio engineer, car audio, etc
Online manual at:https://sites.google.com/site/bofinit/audiotool
Please join the AudioTool Discussion Group to request features or report problems:
http://groups.google.com/group/audiotool-discussion-group
AudioTools's Spectrum Analyzer component uses FFT on batches of samples recorded at the microphone. Hann windowing reduces aliasing. Recorded spectra may be stored as files on the SD card, and then loaded later and displayed together with the live spectrum.
(The "Store" button will store the current live spectrum with a filename of your choice. The "Load" button brings up a list of stored spectra. One of these can be chosen, or the "Cancel" item selected to return to the main display, or the "Clear" item selected to remove the currently loaded spectrum.)
Data collection can be paused and restarted.
To hide the buttons, tap the screen. To restore them, tap again.
The deciBel meter component uses IIR filters and exponential averaging to calculate Flat, A and C weighted response at speeds of Fast, Medium and Slow.
A pair of cursors can be shown on the RTA and Chart Recorder displays: each can be moved to any position, and will display the SPL & time / frequency values ​​measured there. Initially, both cursors are positioned mid-screen - simply drag them to a new position with the fingertip. The cursors can be turned on and off in the Menu.
The loudspeaker polarity checker can be used to check whether a loudspeaker is wired in phase: connect the AudioTool output to the speaker under test, select "Polarity" from the signal generator screen, then return to the RTA screen. If the speaker is out of phase (polarity reversed) AudioTool will show "Pol ---", otherwise "Pol +++" if the speaker is in phase.
The Noise Criteria (available from the Menu) function shows a set of NC contours overlaid on the 1/1 Octave RTA display and the calculated real time current NC value is also shown.
The Chart Recorder shows a moving trace of the SPL measurements over the last few minutes.
RT60 measurements can be made by starting the RT60 component and using a loud clap (or similar) to trigger the measurement. RT60 times measure how much reverberation or echo there is in a room or auditorium.
The Signal Generator generates White and Pink Noise, Sine, Square, Triangle and Ramp waves, and Impulses. The generator uses multiple cycled buffers that are refreshed randomly so ensuring truly random White / Pink noise. The Pink Noise algorithm uses Kemmet's method to adjust White Noise into Pink.
Frequency is set via the arrow buttons or via the keyboard.
The Impulse signal is a delta issued approximately once per second. Impulses can be used to measure the frequency response of audio systems: they have a flat frequency distribution.
The accuracy in frequency of the generated periodic signals is quite good: on the Motorola Droid, errors were of the order of 1% throughout most of the range. Sine wave fidelity is good throughout most of the audio range. Other signals' leading and trailing edges show ringing and decreasing frequency response artefacts in the upper ranges.

Russian interface: Not

Developer: jjbunn
Homepage: https://sites.google.com/site/bofinit/
Google Play: https://play.google.com/store/apps/details?....apps.AudioTool

Download:
Version: 8.4 AudioTool (Alex0047)
Version: 8.3.2 AudioTool (Alex0047)
Version: 7.4.2 Message в„–56, author Alex0047

Past versions


Post has been editediMiKED - 04.04.20, 20:11
Reason for edit: Update: The new version 8.4 AudioTool



Rep: (5047)
AudioTool v7.2.1
What's new:
v7.2.1 Added cursors on Spectrogram display
Please report bugs / problems / desired features on the AudioTool forum or directly via email - thanks!
Download: Attached fileAudioTool.ver.7.2.1.build.109.apk (867.54 KB)



Rep: (0)
Maybe someone prompts, there is a need in one of the outputs (L or R) to rotate the phase by 180 В° emitatsii for balanced output. ICC is that possible?



Rep: (70383)
AudioTool v7.2.4
What's new
7.2.4 "Peak Decay" setting retained between runs
New "Ginormous Font" setting in Menu, for users over 40 :)
Improved peak frequency / note arrow appearance
Please report bugs / problems / desired features on the AudioTool forum or directly via email - thanks!

Attached fileAudioTool v7.2.4.apk(868.94 KB)



Rep: (0)
Is it possible to teach this program, do not turn off the screen. every 30 seconds. turns off the screen and stops.
Not enough hands all the time to poke under the program.



Rep: (0)
That would not turn off the screen - in the settings button Keep Screen On



Rep: (0)
"Keep Screen On" thank you so much work!
And there was one more question:
Vozmozhlo whether it be audio invert phase by 180 В° for odngo channel.
To simulate a balanced signal?
Thank.



Rep: (70383)
AudioTool v7.3
What's new
7.3 New Waterfall option (in Menu) ... shows audio spectral waterfall instead of Spectrogram

Please report bugs / problems / desired features on the AudioTool forum or directly via email - thanks!
Attached fileAudioTool_v7.3.apk(869.42 KB)



Rep: (70383)
AudioTool v7.3.1
What's new
7.3 New Waterfall option (in Menu) ... shows audio spectral waterfall instead of Spectrogram
Please report bugs / problems / desired features on the AudioTool forum or directly via email - thank
Attached fileAudioTool_7.3.1.apk(870.53 KB)



Rep: (70383)
AudioTool v7.3.2
What's new
v7.3.2 New "Load" feature for RT60 - load prior results from an RT60 file and show them in the RT60 table
Fixes for trapping audio playback errors
Attached fileAudioTool_7.3.2.apk(871.42 KB)



Rep: (0)
Guys, the problem of following character: On G3 Moto maximum level - 79 dB. How to remove restrictions?



Rep: (70383)
AudioTool v7.4
What's new
v7.4 New Record / Play Control for mic recording and playing back audio.
Attached fileAudioTool_7.4.apk(828.77 KB)



Rep: (70383)
AudioTool v7.4.2
What's new

7.4.2 Fixes a problem some users had with setting Reverse Portrait orientation.
Attached fileAudioTool_7.4.2.apk(829.03 KB)



Rep: (3)
Good stuff, but why stop updating?



Rep: (0)
Xiaomi mi5
Android 8
Miui 10 global 8.9.20

When you disable the program screen goes to sleep with the phone and sound generation is stopped.
In the setting of the system to block the banned application in the background.
But it didn’t help.

Keep screen on - helped

Post has been editedCmyCmy - 27.09.18, 14:55
Reason for editing: Added



Rep: (5)
People tell me how to insert a calibration file from a microphone?



Rep: (194)
Well, at the same time - how to calibrate the internal microphone?



Rep: (7)
* wicked Mike Farley Perhaps, menu ->load calibrate



Rep: (5)
I understand it myself, but you need to rename the file in the "cal" and put in a folder with the program.



Rep: (240)
Hello.
7.2.4 installed. There iMM-6 microphone. I wanted him to calibrate what is written on the site iMM-6, but it is impossible. Do you need "in AudioTool, select the" Load Cal "option from the Menu, and choose the Dayton file from the list." In this menu option will not find.



Rep: (100)
AudioTool v8.3 24.04.19
Bought, pull apk, purchase refunded.
apk installed without problems and works.
Attached fileAudioTool_8.3.apk(2.03 MB)


Post has been editeddoc McCoy - 30.08.19, 21:02


Full version    

Help     rules

Time is now: 27/07/20, 13:24