Noise Spectrum Logger
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2.0for iPhone, iPad and more
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Noise Spectrum Logger 螢幕截圖
About Noise Spectrum Logger
1. DESPLAY
The power spectrum of sound is displayed in the range of 20 - 20000Hz.
You can zoom in/out the spectrum by pinching in/out smoothly.
Also landscape orientation is supported.
2. USEFUL
While "hold" switch is ON, the maximum values are displayed in red color.
You can select "Mean" or "RMS" as the way of smoothing the spectrum out.
3. LOGGING
By sliding "log" switch, the logging mode is started.
To choose a past log from "History" tab, you can pull it from iPhone via email as a CSV file.
The CSV file can be edited with Excel etc.
4. AVAILABLE
Without cellular data service, the full functions are available.
5. BACKGROUND PROCESSING
You can use the logging function even when iPhone in your pocket.
6. TECHNICAL NOTE
Sample rate: 44.1kHz
Bit depth: 32bit float
FFT window function: Blackman
FFT samples: 8192
The power spectrum of sound is displayed in the range of 20 - 20000Hz.
You can zoom in/out the spectrum by pinching in/out smoothly.
Also landscape orientation is supported.
2. USEFUL
While "hold" switch is ON, the maximum values are displayed in red color.
You can select "Mean" or "RMS" as the way of smoothing the spectrum out.
3. LOGGING
By sliding "log" switch, the logging mode is started.
To choose a past log from "History" tab, you can pull it from iPhone via email as a CSV file.
The CSV file can be edited with Excel etc.
4. AVAILABLE
Without cellular data service, the full functions are available.
5. BACKGROUND PROCESSING
You can use the logging function even when iPhone in your pocket.
6. TECHNICAL NOTE
Sample rate: 44.1kHz
Bit depth: 32bit float
FFT window function: Blackman
FFT samples: 8192
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最新版本2.0更新日誌
Last updated on 2022年07月24日
歷史版本
Built with Xcode 13.4 using the latest libraries.
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Version History
2.0
2022年07月24日
Built with Xcode 13.4 using the latest libraries.
1.9
2021年06月12日
Regenerated with Xcode 12.4 using the latest module.
1.8
2020年02月16日
Supported dark mode.
1.7
2020年01月21日
•Supported "dark mode".
•Supported "transfer files" by using iTunes or using Finder in macOS 10.15 or later.
•Supported "transfer files" by using iTunes or using Finder in macOS 10.15 or later.
1.6
2019年03月21日
•Arranged that rows are ordered by time in "History" tab.
•Included a link to "Privacy Policy".
•Included a link to "Privacy Policy".
1.5
2018年01月03日
Minor adjustments.
1.4
2017年11月13日
•Compressed the size of "CSV file" to half by Improving the format.
•Implemented "upside down" orientation not only on iPad but also on iPhone.
•Fixed a problem that ”hold” function does not work in version 1.3.
•Implemented "upside down" orientation not only on iPad but also on iPhone.
•Fixed a problem that ”hold” function does not work in version 1.3.
1.3
2017年09月19日
Minor adjustments.
Improved responsiveness.
Improved responsiveness.
1.2
2017年08月16日
•Fixed a rare crash.
•Improve responsiveness.
•Improve responsiveness.
1.1
2016年10月10日
The new three functions are added below:
• In "History" tab, CSV files are compressed in ZIP and attached to email.
• The real-time wave of sound is displayed in a new sub-window.
• You can adjust the baseline of power spectrum with the "Offset" values.
• In "History" tab, CSV files are compressed in ZIP and attached to email.
• The real-time wave of sound is displayed in a new sub-window.
• You can adjust the baseline of power spectrum with the "Offset" values.
1.0
2016年09月25日
Noise Spectrum Logger FAQ
點擊此處瞭解如何在受限國家或地區下載Noise Spectrum Logger。
以下為Noise Spectrum Logger的最低配置要求。
iPhone
須使用 iOS 9.0 或以上版本。
iPad
須使用 iPadOS 9.0 或以上版本。
iPod touch
須使用 iOS 9.0 或以上版本。
Noise Spectrum Logger支持日文, 英文
Noise Spectrum Logger包含應用內購買。 以下為Noise Spectrum Logger應用內購買價格清單。
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