Stereophonic sound imaging
A channel, loudspeaker technology used in the field of improving the perceived image and direction of images rendered using a stereo playback system
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment
[0063] In an aspected exemplary embodiment of the invention, a bank of filters provides a substantially flat magnitude response and a phase response that produces a combined phase shift between channels with alternating bands of 0° and 180°. To avoid undesired fluctuations in the magnitude response, a 90° phase shift can be given to the left channel and a -90° phase shift to the right channel (see Figure 9a , Figure 9b and Figure 9c ). If this is done with a 180° phase shift in one channel, the amplitude will drop towards -∞dB during the phase shift. However, by using only 90° transitions, the maximum dip in frequency is around -3dB. Above about 6kHz, the phase response is less important and can be set to zero for both channels.
[0064] For some filter designs, especially digital filter designs, it may be more efficient not to terminate the phase shift of the band at a defined frequency, but to continue phase shifting the band up to the Nyquist frequency. For other de...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com