Abstract: An audio-video (AV) reproduction apparatus capable of analyzing the spectrum of the audio component of an input or reproduced AV signal. The audio component is fed into an unused electronic graphic equalizer (106), the audio frequency bands corresponding to the frequency bands of the electronic graphic equalizer (106) are sampled one frequency band at a time, to obtain the peak level input of each frequency band. The collected peak level input for each frequency band is used to render graphics in the form of equal number segmented spiking bars, where the length of each segmented bar is rendered according to the peak level input of each frequency band. While the rendering is ongoing, another set of peak level input is collected to render the next set of segmented bars. The continuous process of collecting the peak level input and rendering the segmented bars creates a dynamic spectrum analyzer. The spectrum display is superimposed as a graphic over the video signal being reproduced by the apparatus.

Abstract: An audio-video (AV) reproduction apparatus capable of analyzing the spectrum of the audio component of an input or reproduced AV signal. The audio component is fed into an unused electronic graphic equalizer (106), the audio frequency bands corresponding to the frequency bands of the electronic graphic equalizer (106) are sampled one frequency band at a time, to obtain the peak level input of each frequency band. The collected peak level input for each frequency band is used to render graphics in the form of equal number segmented spiking bars, where the length of each segmented bar is rendered according to the peak level input of each frequency band. While the rendering is ongoing, another set of peak level input is collected to render the next set of segmented bars. The continuous process of collecting the peak level input and rendering the segmented bars creates a dynamic spectrum analyzer. The spectrum display is superimposed as a graphic over the video signal being reproduced by the apparatus.