Mixing techniques for mixing audio
First Claim
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1. A method comprising:
- receiving a first audio and a second audio;
applying a first positive gain to a first channel of the first audio;
applying a negative gain to a second channel of the first audio;
applying a second positive gain to a first channel of the second audio;
applying a third positive gain to a second channel of the second audio;
combining the first channel of the first audio with the first channel of the second audio; and
combining the second channel of the first audio with the second channel of the second audio.
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Abstract
This disclosure describes audio mixing techniques that intelligently combine two or more audio signals into an output signal. The techniques allow audio to be combined, yet create perceptual differentiation between the different audio signals. The result is that a user is able to hear both audio signals in a combined output, but the different audio signals do not perceptually interfere with one another. The techniques are relatively simple to implement and are well suited for radio telephones.
40 Citations
45 Claims
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1. A method comprising:
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receiving a first audio and a second audio; applying a first positive gain to a first channel of the first audio; applying a negative gain to a second channel of the first audio; applying a second positive gain to a first channel of the second audio; applying a third positive gain to a second channel of the second audio; combining the first channel of the first audio with the first channel of the second audio; and combining the second channel of the first audio with the second channel of the second audio. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method comprising:
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receiving a music audio and a phone call audio, the music audio including first and second channels and the phone call audio including a mono channel; applying scalar functions to the music audio to change a path of the music audio from a foreground path to a background path; applying low pass filters to the first and second channels of the music audio in the background path; delaying the second channel of the music audio in the background path; applying a first positive gain to the first channel of the music audio in the background path; applying a first negative gain to a first path of the second channel of the music audio in the background path; applying a second negative gain to a second path of the second channel of the music audio in the background path; adding the second path of the second channel of the music audio into the first channel of the music audio in the background path; defining first and second channels for the phone call audio based on mono channel; applying a second positive gain to a first channel of the phone call audio; applying a third positive gain to a second channel of the phone call audio; combining the first channel of the music audio in the background path with the first channel of the phone call audio; and combining the second channel of the music audio in the background path with the second channel of the phone call audio. - View Dependent Claims (13, 14)
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15. A computer readable medium comprising instructions that upon execution:
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receive a first audio and a second audio; apply a first positive gain to a first channel of the first audio; apply a negative gain to a second channel of the first audio; apply a second positive gain to a first channel of the second audio; apply a third positive gain to a second channel of the second audio; combine the first channel of the first audio with the first channel of the second audio; and combine the second channel of the first audio with the second channel of the second audio. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A device comprising:
an audio mixing unit that combines two or more audio signals to form an audio output, wherein the audio mixing unit; receives a first audio signal and a second audio signal; applies a first positive gain to a first channel of the first audio signal; applies a negative gain to a second channel of the first audio signal; applies a second positive gain to a first channel of the second audio signal; applies a third positive gain to a second channel of the second audio signal; combines the first channel of the first audio signal with the first channel of the second audio signal; and combines the second channel of the first audio signal with the second channel of the second audio signal. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38)
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39. A device comprising:
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means for receiving a music audio signal and a phone call audio signal, the music audio signal including first and second channels and the phone call audio signal including a mono channel; means for applying scalar functions to the music audio signal to change a path of the music audio signal from a foreground path to a background path; means for applying low pass filters to the first and second channels of the music audio signal in the background path; means for delaying the second channel of the music audio signal in the background path; means for applying a first positive gain to the first channel of the music audio signal in the background path; means for applying a first negative gain to a first path of the second channel of the music audio signal in the background path; means for applying a second negative gain to a second path of the second channel of the music audio signal in the background path; means for adding the second path of the second channel of the music audio signal into the first channel of the music audio signal in the background path; means for defining first and second channels for the phone call audio signal based on mono channel; means for applying a second positive gain to a first channel of the phone call audio signal; means for applying a third positive gain to a second channel of the phone call audio signal; means for combining the first channel of the music audio signal in the background path with the first channel of the phone call audio signal; and means for combining the second channel of the music audio signal in the background path with the second channel of the phone call audio signal. - View Dependent Claims (40, 41)
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42. A device comprising an audio mixing unit that:
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receives first audio information including first and second stereo channels; generates first foreground audio output based on the first audio information; receives second audio information; applies a second positive gain to a first channel of the second audio information; applies a third positive gain to a second channel of the second audio information; applies a first positive gain to the first stereo channel of the first audio information and a negative gain to the second stereo channel of the first audio information to generate background audio output; generates second foreground audio output based on the second audio information; applies at least one scalar function to cause a perceptual change over a predetermined period of time in the first audio information from a front perceptual location to a back perceptual location in response to receiving the second audio information; and combines the second foreground audio output with the background audio output to generate combined output for the first and second audio information. - View Dependent Claims (43)
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44. A device comprising an audio mixing unit that:
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receives music audio; applies a first positive gain to the a first stereo channel of the music audio audio; applies a negative gain to a second stereo channel of the music audio; presents the music audio to a user; receives telephone call audio; applies a second positive gain to a first channel of the telephone call audio; applies a third positive gain to a second channel of the telephone call audio; mixes the music audio and the telephone call audio so that the first and second channels of the music audio are background audio and the first and second channels of the telephone call audio are foreground audio, including applying the gains to the music audio to create a background perception; applies at least one scalar function to cause a perceptual change over a predetermined period of time in the music audio from a front perceptual location to a back perceptual location in response to the telephone call audio; and presents a combination of the music audio with the telephone audio as a combined output with the music in the background and the telephone call in the foreground. - View Dependent Claims (45)
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Specification