What's New
- iOS 13 Dark Mode
- bug fixes
App Description
Audio Spectrum is a real-time FFT spectrum analyzer. It gives you a visual representation of an acoustic signal. It can be used to measure the frequency response of audio equipment or to analyze different sounds (e.g. sounds of musical instruments).
Features
- Spectrum analyzer
- SPL Meter (dBFS)
- Fast real-time response
- Sampling rates: 44.1kHz, 48kHz, 96kHz*
- Fast Fourier Transform (FFT)
- Window sizes: 256, 512, 1024, 2048, 4096, 8192, 16384, 32768, 65536
- Zoom and pan
- Measure values
- Audio input can be supplied via the built-in microphone and an external microphone (via the USB camera adapter or through the iPhone/iPad dock connector – Core Audio compliant devices)
- Sharing charts (through mail, social networks, clipboard)
- Exporting image charts (png) to the iOS 11 Document Browser (supports iCloud)
- Frequency scale: linear and logarithmic
- Amplitude scale: linear and logarithmic SPL/RMS (dBFS)
- SPL meter weighting: dBZ - linear
*For 96kHz analysis use an external microphone with such capabilities through a USB camera adapter or through the iPhone/iPad dock connector.
App Changes
- August 30, 2014 Initial release
- October 08, 2014 Price increase: $0.99 -> $1.99
- November 10, 2014 Price increase: $1.99 -> $2.99
- February 25, 2015 Price increase: $2.99 -> $4.99
- May 04, 2015 Price decrease: $4.99 -> $2.99
- July 22, 2015 New version 2.1
- July 28, 2015 Price increase: $2.99 -> $4.99
- August 04, 2015 Price decrease: $4.99 -> $1.99
- September 24, 2015 Price increase: $1.99 -> $4.99
- October 05, 2015 Price decrease: $4.99 -> $3.99
- November 06, 2016 New version 2.5.1
- November 06, 2016 Price decrease: $3.99 -> $2.99
- November 17, 2016 Price decrease: $2.99 -> FREE!
- November 18, 2016 Price increase: FREE! -> $0.99
- November 20, 2016 Price increase: $0.99 -> $1.99
- November 24, 2016 Price increase: $1.99 -> $2.99
- June 15, 2019 New version 2.6
- June 15, 2019 Price increase: $2.99 -> $4.99
- June 16, 2019 Price increase: $2.99 -> $4.99
- November 19, 2019 Price decrease: $4.99 -> FREE!
- December 03, 2019 Price increase: FREE! -> $1.99
- December 10, 2019 Price decrease: $1.99 -> $0.99
- July 15, 2020 New version 2.7
- July 15, 2020 Price increase: $0.99 -> $1.99
- September 16, 2023 Price decrease: $1.99 -> $0.99