Hifi-Apps Speaker Setup 2

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202 reviews
Content rating
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About this app

Hifi-Apps help you to fully exploit the potential of your sound system. Enjoy a whole new listening experience. You don't need any prior knowledge: Hifi-Apps use established measurement methods, but generate easily understandable suggestions for improvement from the results, which are clarified by listening tests. Even the built-in microphone of your Android device provides many important insights. The next step is to work with a measurement microphone.
This app helps to set up the loudspeakers. Connect your Android device to your sound system and start the measurement. Go to your designated listening places according to the instructions and play one test signals. In addition to technical data, the app also provides automatic interpretation of the results with suggestions for improvement. Various speaker, listening position and damping material configurations can be directly compared.


- Simultaneous measurement of two channels, e.g. right/left in stereo.
- Automatic interpretation: The results are readable without prior knowledge.
- Display of the raw data for the frequency response in different smoothing levels on request
- Display of raw data for impulse response (linear, logarithmic) on request
- Difference measurements: By comparing different measurements, even an uncalibrated built-in microphone provides meaningful results.
- Calibration of the built-in microphone by comparison measurements, if a measurement microphone is available.
- Use of measuring microphones (import of calibration curve)
- Assessment of bass quality based on found room modes and reflections
- Suggestions for improving the bass range (positioning of speakers and listening positions, absorbers)
- Replay precision evaluation based on impulse response and frequency response
- Geometrical calculation of floor reflections and comparison with measured values
- Evaluation of early reflections based on uniformity impulse response
- Rating Channel Equality
- References to the listener enviroment using the reverberation time
- Recommendations for absorbers
- Suggestion for setting an equalizer
- Discussion about when the use of an equalizer is useful
- Thresholds and parameters for assessments and suggestions for improvement can be changed
- Export the results to HTML format
- measured values accessible in CSV format, if an external memory (e.g. SD card) is used
Updated on
Mar 6, 2023

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
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Ratings and reviews

192 reviews
Robert Struzinski
April 17, 2023
Without another program showing f same results, I can't verify any of them to be accurate (analog results differ vastly). Learning how FFT works casts more doubt in accurate results. There's too many variables applied through rounding off A/D conversion. A reverse engineered science- Known results are matched with input data by math but bound to specific numbers rather than infinite. Inaccuracy results through extrapolated input (fudged) and comparative subtraction to imitate laws of physics.
9 people found this review helpful
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Dr. Johann Gaus
April 18, 2023
The numerical accuracy of the FFT is well researched (Hifi apps uses double Precision). The sound measurement data is fortunately quite "benign" and does not lead to any differences of large numbers. Inaccuracies due to different measurement positions, microphones, reflections from shifted furniture etc. are many orders of magnitude stronger.
nat r
October 27, 2022
Was hoping to get help room correcting my speakers. I did get frequency response plots but they were a mess, and changing bass/treble on the speaker and retesting gave different graphs but which didn't seem to show the change. The interface was confusing and help links went to pages in another language. The app defaulted to the voice quality setting for my phone's mic which I would assume is not ideal, but changing it didn't seem to help. Nice idea and awesome results can be viewed for free!
8 people found this review helpful
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Dr. Johann Gaus
October 28, 2022
Thank you, in version 1.63 most is fixed - Linked pages now DE, EN (plus Google Translate) - Setting of mic-type has been replaced by an input selector - Tone controls typically work in a range of +/- 15 dB, room resonances can be considerably more sharp and stronger. In frequency response, perhaps that's why they were more noticeable.
Matt Koopmans
April 30, 2021
I love the app, bought the ad on apps, but after paying these won't install. Clicking "get yours" after paying does nothing. BTW.. might want to change "yet yours" to "get yours"
21 people found this review helpful
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Dr. Johann Gaus
May 1, 2021
"yet yours" means that it was successfully installed. Please reload the results, then it should work. If not, contact me for an unlock code. It would be good if you could send me the device type (e.g. Galaxy Xy), the Android version and the time period when it happened. Then I can search the anonymized error messages.