There's no shortage of interesting audio-related apps for the iPhone and iPad - everything from audio test instruments to music creation tools to games - and some can even be had for free.
A while back I posted about some interesting audio-related iPhone apps that I'd run across. Recent posts on sister sites have visited the topic of iDevice apps as well (see Clive Maxfield's posts on iPad apps and the EETimes' initiative to highlight apps of interest to EEs), so I thought I'd list more audio-related iPhone/iPad apps of note that I've found since my last post on the subject:
Audio Kit: This collection of audio tools includes a real time spectrum analyser, a scope to display waveforms, an SPL Meter, and a signal generator.
Audio Tools: Another audio toolkit containing a suite of audio and acoustic apps, including an SPL meter, RTA, delay finder, signal generator, line level tester, audio scope, recorder, FFT, loudspeaker tester and more.
Octave: A real-time spectrum analyzer for the iPhone and iPad that displays in 1/6th octave bands.
Fourier: As the name implies, this app is "an FFT for the iPhone (and iPad)."
oScope: By the author of the above two apps, this turns your iDevice into a portable oscilloscope.
bs-spectrum: Another, simple FFT spectrum analyzer for iDevices.
Decibel Meter Pro: Included in the toolkit app Audio Tool, this decibel meter includes A, B, C and Z (unweighted) frequency weightings among its features.
Tone Generator Pro: A $0.99 signal generator for your iDevice that can generate sine waves, square waves, triangle waves, sawtooth waves, reverse sawtooth waves, white noise and pink noise.
sunvox: A music creation tool that offers a pattern based sequencer with modular synthesizers. (This multi-platform software is available for free on non-iOS platforms at http://www.warmplace.ru/soft/sunvox/.)
SoundPrism: A free music creation tool/instrument that uses technology developed by the Fraunhofer Institute for Digital Media Technology.
Musix: An instrument/control surface for musicians and novices "where you can learn every major/minor chord in 2 minutes."
Audio Illusions: This app claims to offer "the best audio illusions ever created." Includes the binaural "Virtual Haircut."
Auditorium: This free audio/music puzzle game challenges you to "create a harmonic convergence of color, light, and music."
Falling Stars: This free app by gum-maker Trident is described as "an audio/visual digital toy" that lets you create and save musical sequences formed by drawing vines and other objects in a fantastical landscape.
Feel free to email me with other audio apps you've found interesting, or to list them in the comments section below.
Comments, questions or suggestions? Email me at email@example.com.
Audio-related iPhone apps abound
Audio illusions that will fool your ear (and brain)
What's the iPad missing as an audio device?