I just created an Audio Spectrum Analyser app and it’s proved very popular. Turn your Android device into an audio spectrum analysis tool and break into safes – um, please don’t use it for that 😉 The app uses a Fast Fourier Transform (FFT) algorithm to analyse sound and has some features not found in similar apps (such as exporting audio snapshot data). Check it out!
For those interested in helping me correct or add more translations, see the github repo here.
How to use it
There are many uses for spectrum analyzers, such as:
• Assessing environmental noise for health and safety
• Sound checking speaker setups, PA systems and in-car stereos
• Identifying audio signals obscured to the human ear by noise
• Testing the microphone on your device
• Comparing the quality of different brands of headphones
• Testing signal generators
• Tuning musical instruments
• Measuring audio signals just outside human perception. As people age over 20 years, their aural perception range drops well below 21 kHz
Speccy has also been used to find gas leaks and even hunt ghosts, apparently!
For calibrating audio equipment or mixing, have a read of this article, this one, or watch this useful video:
A few more useful articles about spectrum analyzers:
I don’t usually don’t much print design, but a new brand of rice pudding was launching in Thailand and a colleague sought my help to design the shelf tags for 7-11 and put together some marketing shots. A couple of the shots also needs retouching to remove some wheat pictured in the image (since the local FDA said that shouldn’t be in shot if it’s not in the product).