Tone Explorer at Mac App Store analyse

ToneExplorer ToneExplorer lets you generate, view, hear, and easily manipulate basic audio signals using natural touch gestures. - This is a UNIVERAL APP: one purchase works on both iPhone (iPod touch) and iPad. The iPad interface is designed specifically the the iPad screen size. ==== Offers a very flexible tone generator ==== - Four waveform shapes to listen to / view: - Sinusoidal - Saw-tooth - Triangular - Square wave - Enter aritrary values for frequency and amplitude. ==== Unique graphical/interactive interface to set paramegers ==== 1. Waveform View: The time-domain representation of the signal, and change the frequency or amplitude by simply pinching and stretching the waveform. 2. Parameter View: A "phase-space" view of the waveforms parameters: frequency and amplitude. Control these two parameters by moving a point in the frequency-amplitude plane. Dragging finger can mimic theremin-like sounds. Change units: - Ampltiude: linear or logarithmic (dB, decibels) scale. - Frequency: linear (Hertz) or logarithmic (midi note number) scale. - Zoom in/out Both views can be zoomed in and out. Can make aritrarily fine-grained changes to the parameters. - A variety of other methods to set the frequency: - Set to the frequency corresponding to a musical note. Choose from presets of all notes spanning 11 octaves. - Change frequency by musical intervals: - Minor second - Major second - Minor third - Major third - Perfect fourth - Tritone - Perfect fifth - Minor sixth - Major sixth - Minor seventh - Major seventh - Octave - Set to frequency corresponding to notes on typical instruments. Presets include: - Guitar - Violin - Viola - Cello - Bass - Piano ==== More uses ==== - Check your hearing. Find the maximum frequency/amplitude setting you can hear. - Educational. Learn and explore the concepts of amplitude, frequency, wavelength, pitch, and volume. Also explore the differences between linear and logarithmic scales for frequency and amplitude. - Musical ear training. - Generate high-pitched tones: control dogs (dog whistle), irritate young people, and confuse old people. - Tune instruments. Includes settings for guiar,violin,viola,cello,bass, and piano.