Helices: Mobile Ear Training App for iOS 3 Devices -

Watch the quick start video.

Improve your aural skills with the mobile Helices app.

Emphasis: EQ
Unit of Measurment: Hz ( nearest octave )
Level of Difficulty: Medium to Hard

Identifying frequency content is one of the most important aural skills we feel you need to develop. Helices will help you develop these skills by using standard filters to effect the timbre of a signal. Specifically, you can drill using three filter types over a nine octave range. $0.99.

Screen Shots

Screen Shot Preview 1 Screen Shot Preview 3-1 Screen Shot Preview 3-2 Screen Shot Preview 3-3

Filters

Fig. 1 Boost filter

Fig. 2 Cut filter

Fig. 3 Bandpass filter

Purchase

  • Mobile apps can only be purchased through Apple's on-line site.
  • These Apps must be installed
    on your portable device
    using Apple's iTunes software.
  • Note: Without headphones it is difficult to correctly identify frequencies below 500 Hz. or make evaluations about the stereo field.
  • $0.99