Patent ID: 8086448

Claim:
A method for processing an audio signal of a sound recording made available to be rendered to an end user, the audio signal being for at least one channel, the method comprising: receiving the audio signal of the sound recording; analyzing the content of the audio signal of the sound recording to determine a modification to the audio signal which when applied causes a high-order perceptual attribute of the audio signal to change; and changing the high-order perceptual attribute of the audio signal as rendered by modifying the audio signal, wherein modifying the audio signal comprises applying to the audio signal the modification based at least in part on said analysis of the content of the audio signal; wherein the analyzing and changing steps are performed on the audio signal on a channel by channel basis; and wherein the high-order perceptual attribute includes a characteristic associated with rendered sound that depends on (1) the content of the audio signal, including an original sound captured when making the sound recording and any processing performed on the original sound to produce the sound recording, and (2) at least one undesirable characteristic of a playback device used to render the audio signal of the sound recording.