Impulse Response

Impulse Response

Rating3.82
(Based on 22 votes)
Rating3.82
(Based on 22 votes)

Find out all the detailed information on Impulse Response. Asolytics offers you Google Play rank history, app description details and changes, keyword density analyzer. And more, here at your elbow. Explore more with Asolytics.

Google Play Rank History

Asolytics collects accurate data about position changes of Impulse Response in every category and TOP Apps Rankings from Google Play. Here you can see a free Asolytics version, where Impulse Response positions are collected once a week in USA. Paid Subscription lets you:

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Categories
Impulse Response is not on the Top Apps Categories from Google Play
Top Apps Rankings
Impulse Response is not on the Top Apps Rankings from Google Play

App Description

Turn your Android smartphone into a powerful tool for measuring the Impulse Response of audio systems.

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.)

Words & Photos Quantity Changes Over Time

High-quality, competitive intelligence insights must be about small changes too. Has Impulse Response risen in rankings? Do your competitors get more traffic from organic search? If you don’t know what they have or have not changed, stats are useless.

We collect the information about text and image changes in the apps descriptions. Free version shows changes once a week. A paid version will notify you as soon as your competitor changes something - and show you what parts of the text he has changed and how.

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Keyword Density Analyzer

Keyword cloud

response 4.81%
impulse 4.33%
signal 4.33%
spectrum 2.4%
mls 2.4%
frequency 1.92%
app 1.92%
time 1.92%
headset 1.44%
Words density
Referring domains
response
10
4.8%
impulse
9
4.3%
signal
9
4.3%
spectrum
5
2.4%
mls
5
2.4%
frequency
4
1.9%
app
4
1.9%
time
4
1.9%
headset
3
1.4%

What words are essential for Impulse Response? How to compare the text description of your app and competitor’s? How to know the difference?

We analyze every description and show you the summary that can help you improve your texts and get more Google Play organic traffic. Request a demo to see the full version of the report and gain access to the notifications.

Reviews

In Asolytics free version we show how Impulse Response reviews have changed week-by-week. Reviews may help you find a new insights about your own product and know what is valuable for your customers. Keep a finger on the pulse of changes in user’s opinion of Impulse Response.

Expand your possibilities with a paid subscription - choose a country, version of the Impulse Response app, user’s mark to explore, search in texts of the review and see a wider range of dates.

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Week 25
Week 06
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1
1 reviews
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1
1 reviews

Keywords (App Search & Search Engine Optimization)

A unique feature - SEO and ASO data combined!

The ASO optimization affects ranking not only in Google Play but in Google search engine too. So it’s logical to see both results side by side. Asolytics free version gives you access to the first ten keywords that Impulse Response ranks in Google.com and Google Play US searches. All keywords and other countries data are available with paid subscription.

Keywords
# Top Keywords in Google.com search Position in Google.com search Volume in Google.com search Traffic Share from Google.com search Position in Google Play US Search Volume in Google Play US Search Traffic Share from Google Play Search
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