Abstract
A stereo sound circuit device for providing three-dimensional surrounding effect has a difference circuit for acquiring difference signal of a left channel sound and a right channel sound. The stereo sound circuit device further provides a filter circuit consisting of a first and a second filtering operation units for applying a first and second filtering functions to the difference signal output from the difference circuit for generating a three-dimensional surrounding sound signal. The first filtering function implements a band pass filter with a central frequency of about 7.23 KHz. The second filtering function implements a band pass filter with a central frequency of about 318 Hz. A signal level adjust circuit is provided for adjusting the signal level of the sound signal output from the filter circuit. A mixer is provided for combining the adjusted three-dimensional surrounding sound with the original left channel sound and right channel sound.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
