Name: Noise Spectrum Logger Hack 2.0 + Redeem Codes
Rating: 5 (1 reviews)

Screenshots

Description

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

Version history

2.0

2022-07-24

Built with Xcode 13.4 using the latest libraries.

1.9

2021-06-12

Regenerated with Xcode 12.4 using the latest module.

1.8

2020-02-16

Supported dark mode.

1.7

2020-01-21

•Supported "dark mode".
•Supported "transfer files" by using iTunes or using Finder in macOS 10.15 or later.

1.6

2019-03-21

•Arranged that rows are ordered by time in "History" tab.
•Included a link to "Privacy Policy".

1.5

2018-01-03

Minor adjustments.

1.4

2017-11-13

•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.

1.3

2017-09-19

Minor adjustments.
Improved responsiveness.

1.2

2017-08-16

•Fixed a rare crash.
•Improve responsiveness.

1.1

2016-10-10

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.

1.0

2016-09-25