Impulse Response is made and published by jjbunn. AppBrain is an independent app data site and isn't affiliated with jjbunn. The app name, icon, screenshots and description belong to jjbunn and are shown as published on Google Play.
AppBrain's verdict
EstablishedNiche- Total installs
- 1.6 thousand
- Rating on Google Play
- 4.33
- 33 ratings
- Last updated
- July 31, 2020
Impulse Response is a niche app, with 1.6 thousand installs. It doesn't have enough ratings yet to judge what users think.
Installs
Tracked by AppBrain- Last 30 days
- 0
- Play install range
- 1+ thousand
- Launched
- August 2013
Installs over time
Impulse Response has been installed 1.6 thousand times. Over the past 30 days, it has been installed 0 times.
Rankings
Google Play top chartsGoogle Play Rankings for Impulse Response
Competitors
Similar apps and more from jjbunnAlternatives to Impulse Response
More from jjbunn
Releases
Updates seen on Google Play- Version
- 1.9
- Launched
- August 2013
User feedback
Ratings and reviews on Google PlayGoogle Play Rating history and histogram
Comments on Impulse Response for Android
Technology
Found in the app by AppBrain- Ads
- No ads
- Price
- $1.49
- Libraries
- 1
- App size
- 1.33 MB
- Needs Android
- 4.0+
- Content rating
- Everyone
Technologies used by Impulse Response
About the app and developer
About Impulse Response
Impulse Response is a music & audio app developed by jjbunn.
How many times has Impulse Response been installed?
Impulse Response has been installed 1.6 thousand times. In the last 30 days, the app was installed 0 times.
What is the rating of Impulse Response?
Impulse Response is rated 4.33 out of 5 stars, based on 33 ratings.
Is Impulse Response free?
Impulse Response costs $1.49. The app size is 1.33 MB. The latest version available is 1.9. The last update was on July 31, 2020.
What are the requirements for Impulse Response?
Impulse Response requires Android 4.0+ or higher. The app has a content rating of Everyone. The app has been available on Google Play since August 2013.
App Performance Report
Get a detailed PDF report for Impulse Response with download trends, rating history, and key performance statistics — useful for competitive research or tracking your own app. Learn more
Get PDF Report — $29Developer information for jjbunn
Frequently asked questions about Impulse Response
Is Impulse Response free?
No. Impulse Response costs $1.49 on Google Play.
Is Impulse Response still available?
Yes. Impulse Response is on Google Play, and the last update we saw was on July 31, 2020.
Does Impulse Response contain ads?
No. Google Play does not list Impulse Response as containing ads.
What Android version does Impulse Response require?
Impulse Response runs on Android 4.0 and higher.
How large is Impulse Response?
Impulse Response is 1.33 MB.
Is Impulse Response suitable for children?
Google Play rates the content of Impulse Response as suitable for everyone.
How many times has Impulse Response been installed?
Google Play lists 1,000+ installs for Impulse Response.
How do people rate Impulse Response?
Impulse Response scores 4.33 out of 5 stars, from 33 ratings on Google Play.
Who made Impulse Response?
Impulse Response was developed by jjbunn. It is listed in the music & audio category on Google Play.
What are the best alternatives to Impulse Response?
People looking at Impulse Response also look at these music & audio apps: Room Acoustics Meter, Car Audio Setup, Sound Spectrum Pro, Music Player | MP3 Player, SpectralScan Audio Analyzer.
Store listing
By jjbunn, from Google Play“Turns an Android into a powerful tool for audio Impulse Response measurements”
Description by jjbunn Written by the developer, not by AppBrain. Click to read.
This app will only be of interest to those who understand what an Impulse Response is!
The app generates an MLS signal from the speaker (or headset jack) and records it via the microphone, and then calculates the response of the system as a function of frequency and as a time series. The MLS signal is an alternative method to the usual sine wave sweeps, and in many ways superior.
The IR can be saved as a 44.1kHz 16bit Mono WAV file for use with third party tools such as Voxengo that use Impulse Response data.
The display shows the realtime spectral response together with the derived impulse signal as well as the step function. The spectrum can be shown in 1/1, 1/3 or 1/6 ISO octave bands, or in full pixel resolution. Another display shows the Phase of the impulse response as a function of frequency: the phase is unwrapped. The level (dB), frequency (HZ) can be adjusted via the Menu. An automatic time window feature homes in on the time region around the impulse - the duration of the window can be adjusted via the Menu.
The impulse and phase signal can be averaged, if desired. Spectrum response as well as the time series of the impulse response data can be saved in a file to the SD card for later retrieval, or offline processing (the files are simple text files easily imported into e.g. Excel), and shown alongside the realtime spectrum data.
To test the response of audio equipment, the MLS signal may be fed into its Line In input via a cable attached to the phone's headset jack. If a higher quality external microphone is to be used it can easily be attached using a Y breakout connector in the headset jack.
The MLS (Maximum Length Sequence) signal is much better than a simple pulse signal in that it has a greater power density and thus causes the equipment under test to operate in a more usual regime by exciting the whole frequency spectrum at once. This app uses a Fast Hadamard Transform to calculate the necessary convolution of the recorded signal with the MLS in order to extract the impulse response of the system.
Feedback and/or questions/problem reports are most welcome - please send email.
(If you require an Android-based SPL meter, Signal Generator, RT60 meter and Spectrum Analyser, please see our AudioTool app, also in Google Play.)
Recent changes:
v1.9 31Jul2020 Revised to include Menu button on screen. Now targets Android 28.