Graphic phase shifter

• US 8,532,802 B1
• Filed: 01/18/2008
• Issued: 09/10/2013
• Est. Priority Date: 01/18/2008
• Status: Active Grant

• Current Assignee: Adobe Inc.
• Original Assignee: Adobe Systems Incorporated (Adobe Inc.)
• Inventors: Johnston, David E.
• Primary Examiner(s): ELBIN, JESSE A
• Application Number:
  US12/016,877
• Time in Patent Office: 2,062 Days
• Field of Search: 381/12, 381/17, 381/27, 381 56- 58, 700/94, 702 66- 72, 715/716, 715/727
• US Class Current: 700/94
• CPC Class Codes: G11B 27/034 on discs G11B27/036, G11B27/038 take precedence
• CPC Class Codes: G11B 27/28 by using information signals recorded by the same method as the main recording G11B27/22 takes precedence
• CPC Class Codes: G11B 27/34 Indicating arrangements indicating means incorporated in magazine or cassette G11B23/046 and G11B23/0875; indicating measured values in general G01D

Abstract

Systems and methods for editing digital audio data are provided. In one implementation, a method is provided that includes receiving digital audio data. The computer implemented method includes receiving digital audio data and displaying a representation of the digital audio data. The method also includes receiving a selection including a portion of the digital audio data, analyzing a feature of the audio data for the selected portion with respect to a plurality of frequency bands in the digital audio data, calculating a feature value for each frequency band over a specified period of time, and using the feature value for each frequency band to adjust the feature of the audio data.

Claims

1. A method comprising:

receiving digital audio data that include a plurality of audio channels;

receiving a selection including a portion of the digital audio data;

identifying a plurality of frequency bands in the digital audio data;

calculating a feature value for each frequency band over a specified period of time, wherein the feature value for each frequency band is calculated from the plurality of audio channels, and the feature value for a given frequency band is calculated from audio data corresponding to the given frequency band in the plurality of audio channels; and

using the feature value for each frequency band to adjust the feature of the audio data.

2. The method of claim 1 where the feature is phase difference or pan position.

3. The method of claim 1, wherein identifying the plurality of frequency bands includes analyzing the feature of the audio data for the selected portion, the feature being analyzed with respect to the plurality of frequency bands, the method further comprising:

generating a representation of the analyzed feature, the representation including the calculated feature value for each frequency band over the specified period of time.

4. The method of claim 3 further comprising:

applying the representation of the analyzed feature to the audio data including constructing a curve that adjusts the feature value for each frequency band by an amount corresponding to the curve value.

5. The method of claim 4 where:

applying the representation of the analyzed feature to the audio data includes re-applying the representation of the analyzed feature to the digital audio data to adjust audio data outlying the curve after the first adjustment.

6. The method of claim 4 where:

applying the representation of the analyzed feature to the audio data includes applying the representation to the selected portion of audio data, a portion of audio data other than the selected portion, or both.

7. A method comprising:

receiving digital audio data that include a plurality of audio channels;

receiving a selection including a portion of the digital audio data;

identifying a plurality of frequency bands in the digital audio data;

dynamically calculating a feature value for each frequency band in the selected portion as the feature value changes such that the calculation of each feature value is based upon the value of that feature at a previous time period, wherein the feature value for each frequency band is calculated from the plurality of audio channels, and the feature value for a given frequency band is calculated from audio data corresponding to the given frequency band in the plurality of audio channels; and

using each feature value to adjust the feature of the audio data.

8. The method of claim 7 where the feature is phase difference or pan position.

9. The method of claim 7, wherein identifying the plurality of frequency bands includes analyzing the feature of the audio data for the selected portion, the feature being analyzed with respect to the plurality of frequency bands, the method further comprising:

generating a representation of the analyzed feature, the representation including each dynamically calculated feature value for each frequency band.

10. The method of claim 9 further comprising:

applying the representation of the analyzed feature to the audio data including constructing a curve that automatically adjusts the feature value for each frequency band by an amount corresponding to the curve value, the adjustment being done as the representation is being generated.

11. The method of claim 10 where:

applying the representation of the analyzed feature to the audio data includes re-applying the representation of the analyzed feature to the digital audio data to adjust audio data outlying the curve after the first adjustment.

12. The method of claim 10 where:

applying the representation of the analyzed feature to the audio data includes applying the representation to the selected portion of audio data, a portion of audio data other than the selected portion, or both.

13. A computer-program product tangibly embodied on a computer readable medium for storing instructions, which when executed by a processor, causes the processor to perform operations comprising:

receiving digital audio data that include a plurality of audio channels;

receiving a selection including a portion of the digital audio data;

identifying a plurality of frequency bands in the digital audio data;

calculating a feature value for each frequency band over a specified period of time, wherein the feature value for each frequency band is calculated from the plurality of audio channels, and the feature value for a given frequency band is calculated from audio data corresponding to the given frequency band in the plurality of audio channels; and

using the feature value for each frequency band to adjust the feature of the audio data.

14. The computer-program product of claim 13 where the feature is phase difference or pan position.

15. The computer-program product of claim 13, where identifying the plurality of frequency bands includes analyzing the feature of the audio data for the selected portion, the feature being analyzed with respect to the plurality of frequency bands, the operations further comprising:

generating a representation of the analyzed feature, the representation including the calculated feature value for each frequency band over the specified period of time.

16. The computer-program product of claim 15, the operations further comprising:

applying the representation of the analyzed feature to the audio data including constructing a curve that adjusts the feature value for each frequency band by an amount corresponding to the curve value.

17. The computer-program product of claim 16 where:

applying the representation of the analyzed feature to the audio data includes re-applying the representation of the analyzed feature to the digital audio data to adjust audio data outlying the curve after the first adjustment.

18. The computer-program product of claim 16 where:

applying the representation of the analyzed feature to the audio data includes applying the representation to the selected portion of audio data, a portion of audio data other than the selected portion, or both.

19. A computer-program product tangibly embodied on a computer readable medium for storing instructions, which when executed by a processor, causes the processor to perform operations comprising:

receiving digital audio data that include a plurality of audio channels;

receiving a selection including a portion of the digital audio data;

identifying a plurality of frequency bands in the digital audio data;

dynamically calculating a feature value for each frequency band in the selected portion as the feature value changes such that the calculation of each feature value is based upon the value of that feature at a previous time period, wherein the feature value for each frequency band is calculated from the plurality of audio channels, and the feature value for a given frequency band is calculated from audio data corresponding to the given frequency band in the plurality of audio channels; and

using each feature value to adjust the feature of the audio data.

20. The computer-program product of claim 19 where the feature is phase difference or pan position.

21. The computer-program product of claim 19, where identifying the plurality of frequency bands includes analyzing the feature of the audio data for the selected portion, the feature being analyzed with respect to the plurality of frequency bands, the operations further comprising:

generating a representation of the analyzed feature, the representation including each dynamically calculated feature value for each frequency band.

22. The computer-program product of claim 21, the operations further comprising:

applying the representation of the analyzed feature to the audio data including constructing a curve that automatically adjusts the feature value for each frequency band by an amount corresponding to the curve value, the adjustment being done as the representation is being generated.

23. The computer-program product of claim 22 where:

applying the representation of the analyzed feature to the audio data includes re-applying the representation of the analyzed feature to the digital audio data to adjust audio data outlying the curve after the first adjustment.

24. The computer-program product of claim 22 where:

applying the representation of the analyzed feature to the audio data includes applying the representation to the selected portion of audio data, a portion of audio data other than the selected portion, or both.

25. A system comprising:

a user interface device;

one or more computers operable to interact with the user interface device and a processor; and

a memory for storing instructions, which when executed by the processor, causes the processor to perform operations comprising;

receiving digital audio data that include a plurality of audio channels;

receiving a selection including a portion of the digital audio data;

identifying a plurality of frequency bands in the digital audio data;

calculating a feature value for each frequency band over a specified period of time, wherein the feature value for each frequency band is calculated from the plurality of audio channels, and the feature value for a given frequency band is calculated from audio data corresponding to the given frequency band in the plurality of audio channels; and

using the feature value for each frequency band to adjust the feature of the audio data.

26. The system of claim 25 where the feature is phase difference or pan position.

27. The system of claim 25, where identifying the plurality of frequency bands includes analyzing the feature of the audio data for the selected portion, the feature being analyzed with respect to the plurality of frequency bands, the operations further comprising:

generating a representation of the analyzed feature, the representation including the calculated feature value for each frequency band over the specified period of time.

28. The system of claim 27 the operations further comprising:

applying the representation of the analyzed feature to the audio data including constructing a curve that adjusts the feature value for each frequency band by an amount corresponding to the curve value.

29. The system of claim 28 where:

applying the representation of the analyzed feature to the audio data includes re-applying the representation of the analyzed feature to the digital audio data to adjust audio data outlying the curve after the first adjustment.

30. The system of claim 28 where:

applying the representation of the analyzed feature to the audio data includes applying the representation to the selected portion of audio data, a portion of audio data other than the selected portion, or both.

31. A system comprising:

a user interface device;

one or more computers operable to interact with the user interface device and a processor; and

a memory for storing instructions, which when executed by the processor, causes the processor to perform operations comprising;

receiving digital audio data that include a plurality of audio channels;

receiving a selection including a portion of the digital audio data;

identifying a plurality of frequency bands in the digital audio data;

dynamically calculating a feature value for each frequency band in the selected portion as the feature value changes such that the calculation of each feature value is based upon the value of that feature at a previous time period, wherein the feature value for each frequency band is calculated from the plurality of audio channels, and the feature value for a given frequency band is calculated from audio data corresponding to the given frequency band in the plurality of audio channels; and

using each feature value to adjust the feature of the audio data.

32. The system of claim 31 where the feature is phase difference or pan position.

33. The system of claim 31, where identifying the plurality of frequency bands includes analyzing the feature of the audio data for the selected portion, the feature being analyzed with respect to the plurality of frequency bands, the operations further comprising:

generating a representation of the analyzed feature, the representation including each dynamically calculated feature value for each frequency band.

34. The system of claim 33 the operations further comprising:

applying the representation of the analyzed feature to the audio data including constructing a curve that automatically adjusts the feature value for each frequency band by an amount corresponding to the curve value, the adjustment being done as the representation is being generated.

35. The system of claim 34 where:

applying the representation of the analyzed feature to the audio data includes re-applying the representation of the analyzed feature to the digital audio data to adjust audio data outlying the curve after the first adjustment.

36. The system of claim 34 where:

applying the representation of the analyzed feature to the audio data includes applying the representation to the selected portion of audio data, a portion of audio data other than the selected portion, or both.