Dnote-LR is an innovative proprietary technology that creates new audio sound from existing speakers based on the T/S parameter extracted from a speaker and the target T/S parameter. In most audio systems, Frequency response (sound pressure level, distortion) of speakers is corrected by adjusting the electric signal level with an equalizer by IIR or FIR filter. Meanwhile, since existing speakers are electro-mechanical vibration conversion devices, Trigence technology takes the transient response and resonance of the speaker and employs a new sound tuning methodology. By designating the target parameter, Dnote-LR easily creates sounds with the characteristics of your preference from existing speakers, and greatly saves development cost and time of new speaker designs.