Hifi-Apps Speaker Setup 2

Dr. Johann Gaus

In-app purchases

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.

Features

- 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

Ratings and reviews

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.

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!

I gave the Hi-Fi app speaker thing a five because it was perfect for what I needed it for results of perfect for my roommate needed it for now to get your stereo center can't get my speakers so that the perfectly aligned with each other it's quite easy to use and you can go to every room in the house and get all your stereo equipment in Harmony and balance