SYSTEM AND METHOD FOR ENHANCED STREAMING AUDIO
First Claim
1. A method of delivering a surround-sound audio signal over the Internet to a client using Internet stereo sound streaming techniques, the method comprising:
- providing a 5.1 channel audio input signal at an Internet broadcast location;
encoding the 5.1 channel audio input signal into two channels of transmit audio;
converting the two channels of transmit audio into a streaming format for transmission over the Internet;
transmitting the streaming format to a client location;
reconverting the streaming format into two channels of receive audio;
decoding the two channels of receive audio into a 5.1 channel audio output signal;
processing the 5.1 channel audio output signal into a two-channel audio output signal, wherein the two-channel audio output signal is configured to simulate 5.1 channel audio when played on a pair of loudspeakers; and
enhancing the two-channel audio output signal for playback by the client, said enhancing comprising;
correcting a perceived height of an apparent sound stage associated with the two-channel audio output signal;
enhancing a bass response associated with the two-channel audio output signal comprising;
filtering the two-channel audio output signal at a first frequency with a first band pass filter;
filtering the two-channel audio output signal at a second frequency with at least a second band pass filter, wherein the second frequency is different than the first frequency; and
filtering the two-channel audio output signal at a third frequency with a third band pass filter, wherein the third frequency is different than the first and second frequencies; and
correcting a perceived width of the apparent sound stage associated with the two-channel audio output signal.
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Accused Products
Abstract
A system and method for enhancement and management of streaming audio is disclosed. In one embodiment, the system provides a client-side decoder that is compatible with numerous audio formats, so that a user can enjoy relatively high-quality audio from various sources, even from sources that do not provide multi-channel or high-quality audio data. The system and method also include a management system for managing and controlling the use of licensed signal processing software to further enhance an audio stream. In one embodiment, the management system is used to manage a signal processing module that provides psychoacoustic audio processing to create a wider soundstage, an acoustic correction process to increase the perceived height and clarity of the audio image, and bass enhancement processing to create the perception of low bass from the small speakers or headphones typically used with multi-media systems and portable audio players.
113 Citations
1 Claim
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1. A method of delivering a surround-sound audio signal over the Internet to a client using Internet stereo sound streaming techniques, the method comprising:
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providing a 5.1 channel audio input signal at an Internet broadcast location;
encoding the 5.1 channel audio input signal into two channels of transmit audio;
converting the two channels of transmit audio into a streaming format for transmission over the Internet;
transmitting the streaming format to a client location;
reconverting the streaming format into two channels of receive audio;
decoding the two channels of receive audio into a 5.1 channel audio output signal;
processing the 5.1 channel audio output signal into a two-channel audio output signal, wherein the two-channel audio output signal is configured to simulate 5.1 channel audio when played on a pair of loudspeakers; and
enhancing the two-channel audio output signal for playback by the client, said enhancing comprising;
correcting a perceived height of an apparent sound stage associated with the two-channel audio output signal;
enhancing a bass response associated with the two-channel audio output signal comprising;
filtering the two-channel audio output signal at a first frequency with a first band pass filter;
filtering the two-channel audio output signal at a second frequency with at least a second band pass filter, wherein the second frequency is different than the first frequency; and
filtering the two-channel audio output signal at a third frequency with a third band pass filter, wherein the third frequency is different than the first and second frequencies; and
correcting a perceived width of the apparent sound stage associated with the two-channel audio output signal.
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Specification