iSmartESA 4+
Smart Easy Sound Analyzer
Hiroshi Nakano
Designed for iPad
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- $3.99
Screenshots
Description
The app records sound while displaying the spectrogram in real time. Analysis: waveform, spectrum, peak frequency, cepstrum, spectral envelope, sound pressure level.
Sound acquisition is endlessly done from the smartphone's built-in microphone or external microphone at a sampling frequency of 44100Hz, and the last 20 seconds are recorded when the recording button is pressed. The frequency display range can be selected from 0-500Hz, 0-1kHz, 0-2kHz, 0-5kHz, 0-10kHz, and 0-20kHz.
Analysis: Waveform (time axis expansion and contraction, envelope), FFT spectrum. In case of voice sound analysis, the app can determine the fundamental frequency (by cepstrum) and formant frequencies (by MEM). In addition to being able to select any section for these analyzes, it is also possible to observe while playing back the sound.
Sound pressure level and frequency: During measurement, the moving average sound pressure level for one second is displayed (A-weighted value). This function may be used to measure environmental noise. The value is adjusted for a specific microphone: SONY ECM-SP10, but the accuracy is not guaranteed. Also, during the measurement, the peak frequency (The frequency range to be detected is set on the setting screen) is displayed.
Files: You can save the recorded sound as a file with comments. Sharing function is available.
What’s New
Version 1.6
In this version,
1. Spectrogram image display has been speeded up.
2. Improved file sharing and deletion user interface
3. Flattened the gain characteristics of IIR filters (LPF, HPF) in the passband.
4. Also added the function of FFT filter
5. Corrected inaccuracies in cepstrum analysis and added spectral envelope display
App Privacy
The developer, Hiroshi Nakano, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.
Data Not Collected
The developer does not collect any data from this app.
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Information
- Seller
- Hiroshi Nakano
- Size
- 3.6 MB
- Category
- Education
- Compatibility
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- iPhone
- Requires iOS 14.1 or later.
- iPad
- Requires iPadOS 14.1 or later.
- iPod touch
- Requires iOS 14.1 or later.
- Mac
- Requires macOS 11.0 or later and a Mac with Apple M1 chip or later.
- Apple Vision
- Requires visionOS 1.0 or later.
- Languages
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English, Japanese
- Age Rating
- 4+
- Copyright
- © 2021 Hiroshi Nakano
- Price
- $3.99
Supports
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Family Sharing
Up to six family members can use this app with Family Sharing enabled.