Voice Spectrogram Logger

Name: Voice Spectrogram Logger
Rating: 3 (2 reviews)
Author: Yukiko Iwai

By: Yukiko Iwai App

Education

Overview

Version:

1.9

Last updated: 2025-12-23

Ranking

#726,977 ▲ 581

Overall

Features & Capabilities

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.
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.
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.
AVAILABLE Without cellular data service, the full functions are available. The background processing is supported.
TECHNICAL NOTE Sample rate: 44.1kHz Bit depth: 32bit float FFT window function: Blackman FFT samples: 4096

User Growth & Download Statistics

App

By:

Yukiko Iwai

Rating:

3.00

(2)

Version:

1.9 Last updated: 2025-12-23

Version code:

880893311

Creation date:

2017-09-14

Compatible devices:

Size:

6.63MB

URLs:

Full description:

Source:

Apple Apps Store

Data ingested on:

2026-08-09

Compare stats and ranking:

Ranking

# 726,977 ▲ 581

For Developers

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Contact the developer

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Developed by:

Yukiko Iwai

Apple Apps Store

https://apps.apple.com/us/app/voice-spectrogram-logger/id1277134462

User Reviews

On the iPad Air 5, the logarithmic measurements show gaps in the measurements that look like single lines going across the screen instead of a full spectrum that appears when in linear mode.