Patent ID: 9443502
Filing Date: 2016-09-13
CPC Classification: G10K,H04R

Claim Text:
1. A method for reducing parasitic vibrations of a loudspeaker environment while maintaining a perception of low frequencies of an original electric sound signal for broadcast after processing by a loudspeaker having a cut-off frequency comprising the steps of: identifying a vibration frequency band that causes the loudspeaker to vibrate; isolating a low frequency band of the original sound signal having a frequency close to the cut-off frequency of the loudspeaker as an upper limit; generating at least one harmonic signal from the isolated low frequency band of the original sound signal; combining the original sound signal and said at least one harmonic signal to obtain a recombined signal; removing the vibration frequency band from the recombined signal to obtain a signal for broadcast by the loudspeaker; and compressing a dynamic of a low frequency portion of the recombined signal with the vibration frequency band removed there from to increase a perceived power of spectral lines of the recombined signal located around the vibration frequency band.