Impulse Response MOD APK v1.8 [Paid for free / Free purchase] for Android
Turns an Android into a powerful tool for audio Impulse Response measurements
📋 MOD APK Details
📅 Updated
2025-10-05
📱 App Name
Impulse Response
🔢 Latest Version
v1.8
🎮 Genre
Music Audio
👨💻 Developer
Jjbunn
📦 File Size
0.11 MB
🤖 OS Version
4.0
⚡ Mod Features
Paid for free / Free purchase
🔑 Package Name
com.julian.apps.ImpulseResponse
📥 Get it On
Google Play Store
🎯 MOD Features
Paid for free
- ✓ Paid for free / Free purchase
- ✓ No Root Required
- ✓ Verified Working
- ✓ No Malware
- ✓ Free Download
📸 Screenshots
📖 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.)
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.)
❓ Frequently Asked Questions
Is Impulse Response MOD APK safe to install?
Yes! Impulse Response MOD APK is security-checked before publishing and includes a "Safe Verified" status on our platform. We scan every file for viruses, malware, and spyware before making it available for download.
Does Impulse Response MOD APK require Root access?
No, this MOD APK does not require root access. SafeMod provides "No-Root" versions for the majority of mods, ensuring your system's core security remains intact. Simply download and install like any normal APK file.
How do I update Impulse Response MOD APK safely?
To update, simply download the latest version from SafeMod and install it over the existing one. You don't need to uninstall the old version (this keeps your game data safe). Never update modded apps through the Google Play Store.
What are the MOD features included?
This MOD version includes: Paid for free / Free purchase. These features provide unlimited in-game resources, unlocked premium content, ad-free experience, and enhanced gameplay.
How to install Impulse Response MOD APK?
1. Download the MOD APK file from SafeMod
2. Enable "Unknown Sources" in your device settings
3. Open the downloaded file and tap "Install"
4. Wait for installation to complete
5. Open and enjoy the modded features!
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