Voice Spectrogram Logger is made and published by Yukiko Iwai. AppBrain is an independent app data site and isn't affiliated with Yukiko Iwai. The app name, icon, screenshots and description belong to Yukiko Iwai and are shown as published on the App Store.

About Voice Spectrogram Logger

Voice Spectrogram Logger is an education app developed by Yukiko Iwai.

What is the rating of Voice Spectrogram Logger?

Voice Spectrogram Logger is rated 3.00 out of 5 stars, based on 2 ratings.

Is Voice Spectrogram Logger free?

Voice Spectrogram Logger is free. The app size is 6.63 MB. The latest version available is 1.9. The last update was on December 23, 2025.

What are the requirements for Voice Spectrogram Logger?

The app has a content rating of Medium Maturity. The app has been available on the App Store since September 2017.

Description by Yukiko Iwai (from the App Store)

1. DESPLAY
The spectrogram of voice is displayed in the range of 20 - 2500Hz.
You can zoom in/out the spectrogram by pinching in/out smoothly.
Also landscape orientation is supported.

2. USEFUL
By moving "vivid" slider, the gradation of spectrogram is controlled.
The gradation is also controlled by moving "baseline" slider in "Setting" tab and selecting "Mean" or "RMS" as the way of smoothing the spectrogram out.

3. LOGGING
When "log" switch is ON, this app runs in the logging mode.
To choose a past log from "History" tab, you can pull it from iPhone via email as a PNG file.

4. AVAILABLE
Without cellular data service, the full functions are available.
The background processing is supported.

5. TECHNICAL NOTE
Sample rate: 44.1kHz
Bit depth: 32bit float
FFT window function: Blackman
FFT samples: 4096

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More data about Voice Spectrogram Logger

Price	Free
Rating	3.00 based on 2 ratings
Ranking	Not ranked
Version	1.9
App size	6.63 MB
Maturity	Medium Maturity

Screenshots

Screenshots by Yukiko Iwai, from the the App Store listing

Official page on the App Store

Alternatives to Voice Spectrogram Logger

Changelog of Voice Spectrogram Logger

No changelog data

Developer information for Yukiko Iwai

Yukiko Iwai

Address:

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App Store Rankings for Voice Spectrogram Logger

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Technologies used by Voice Spectrogram Logger

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Voice Spectrogram Logger