Compressor based dynamic bass enhancement with EQ

A compressor, low-frequency technology, used to enhance the perceived bass response of cheap speakers, audio and video receiving and playback equipment, can solve problems such as easy distortion, poor low frequency (bass) response

Inactive Publication Date: 2012-11-07
THAT PTY LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These speakers typically have poor low frequency (bass) response and are more prone to distortion when audio frequencies are well below the speaker's low frequency resonance point

Method used

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  • Compressor based dynamic bass enhancement with EQ
  • Compressor based dynamic bass enhancement with EQ
  • Compressor based dynamic bass enhancement with EQ

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Embodiment Construction

[0019] Exemplary embodiments are now discussed. Other embodiments may also be added or substituted. Details that are obvious or unnecessary are omitted for space saving or more efficient explanation. Conversely, some embodiments may be practiced without all of the details disclosed herein.

[0020] figure 1is a block diagram illustrating one example of a compressor-based bass boost system for enhancing the bass response of a speaker system. The bass boost system 10 includes inputs 12 and 14 configured to receive left and right channel signals, respectively, of an audio stereo program. The left channel input 12 is coupled to an input of LPF (low pass filter) 16 and to an input of HPF1 (high pass filter) 18 . Right channel input 14 is coupled to the input of LPF 20 and the input of HPF 122 . The outputs of both LPFs 16 and 20 are connected to a low-band compressor 24, which is configured to compress each signal and provide compressed signals at respective outputs of the com...

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Abstract

A system for and method of enhancing the low frequency response of a loudspeaker for relatively low input level audio signals and protect the loudspeaker for relatively high input level audio signals is disclosed. The system comprises: a crossover network configured so separate an audio input signal into at least two frequency bands including a low frequency band; and a signal compressor responsive to the energy level of the low frequency portion of an input audio signal in the low frequency band and configured to provide amplification gain on the low frequency portion of the input signal when the energy level of the low frequency portion of the input signal is relatively low so as to enhance the low frequency response of the loudspeaker, and attenuation of the low frequency portion of the input signal when the energy level of the low frequency portion of the input signal is relatively high so as to protect the loudspeaker from being overdriven. The system is configurable so that it can be used to enhance the loudspeakers of audio and video play devices such as televisions and computers.

Description

[0001] Related Application Cross Reference [0002] This application is based on and claims priority to U.S. Provisional Patent Application 61 / 293,005, filed January 7, 2010, by Scott Skinner and Chris Hanna, entitled "Compressor Based Dynamic Bass Enhancement," which is assigned to the present assignee (Attorney Docket No. 056233-0438 (THAT-33PR)). [0003] This application is also entitled "Dynamic Volume Control and Multi-Spatial Processing Protection," filed November 16, 2009, by Christopher M. Hanna, Gregory Benulis, and Scott Skinner and is assigned to the present assignee (Attorney Docket No. 056233- 0427 (THAT-0026)) and Christopher M. Hanna and Gregory Benulis, entitled "Dynamic Volume Control and Multi-Spatial Processing Protection," filed November 16, 2009 and assigned to the present Continuation-in-Part of Assignee's (Attorney Docket No. 056233-0428 (THAT-0027)) U.S. Patent Application 12 / 619,655 ("co-pending application"), both of which claim Christopher M. Hanna, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04S1/00H04R3/00H04R5/04H03G7/00H03G9/02
CPCH04R5/04H04S1/00H04R3/14H04R3/04H03G3/341H04R2430/01H03G3/3089H03G3/3005H03G5/165H04R3/007
Inventor S·斯金纳C·M·汉纳
Owner THAT PTY LTD
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