This Technical Ear Training app is designed to teach students to identify the centre frequency of a parametric filter applied to any audio file/s they import into the program. http://technicalear.training
Tonal Ear Training was a web-based ear training program and research tool designed by Mark Bassett and David Major. Users were required to identify the centre frequency of a parametric filter applied to various genres of music and pink noise. A dissimilarity-rating task was delivered after every five iterations of the training program, designed to establish the relative influence of training method on tone colour discrimination.
Dr. Sean Olive at Harman has developed this technical ear training tool titled Harman’s How to Listen. http://harmanhowtolisten.blogspot.ae
Dr. Jason Corey has developed a suite of technical ear training applications covering all manner of TET tasks to accompany his book Technical Ear Training: Critical Listening for Audio Professionals.
Izotope recently released Pro Audio Essentials, 'a game-based course for music producers to practice and improve their audio skills. This unique learning experience uses audio games, ear training, and videos to build the production skills that music makers use every day when recording, mixing, and mastering'.