Automatically correcting audio data

Patent metadata

Field	Value
Publication number	US-9484061-B2
Application number	US-87754407-A
Country	US
Kind code	B2
Filing date	Oct 23, 2007
Priority date	Oct 23, 2007
Publication date	Nov 1, 2016
Grant date	Nov 1, 2016

Abstract

Systems, methods, and computer program products are provided for editing digital audio data. In some implementations a method is provided that includes receiving digital audio data, identifying a modification to a portion of the digital audio data, and automatically correcting audio data surrounding one or more edit boundaries resulting from the identified modification including interpolating audio data from a region associated with the one or more edit boundaries.

First claim

What is claimed is:

1. A method comprising:
receiving digital audio data;
identifying a modification to a portion of the digital audio data, the modification being in response to a user input to edit the portion of audio data; and
automatically correcting audio data surrounding one or more edit boundaries resulting from the identified modification, wherein automatically correcting the audio data comprises:
identifying a region associated with the one or more edit boundaries, the region being identified at least in part by identifying a specified number of samples prior to a first edit boundary and a specified number of samples after the first edit boundary,
identifying a plurality of frequency bands in the region, and
interpolating audio data from the region associated with the one or more edit boundaries, the interpolating including separately interpolating amplitude values for audio data across the region for each of individual frequency band.

2. The method of claim 1 , where interpolating a first frequency band includes:
identifying one or more first amplitude values associated with the audio data in the samples prior to the first edit boundary and that correspond to the first frequency band;
identifying one or more second amplitude values associated with the audio data in the samples prior to the first edit boundary and that correspond to the first frequency band; and
interpolating across the region of the audio data at that frequency band using the first amplitude and the second amplitude values.

3. The method of claim 1 , where interpolating a first frequency band includes:
identifying one or more first phase values associated with the audio data in the samples prior to the first edit boundary and that correspond to the first frequency band;
identifying one or more second phase values associated with the audio data in the samples prior to the first edit boundary and that correspond to the first frequency band; and
interpolating across the region of the audio data at that frequency band using the first phase and the second phase values.

4. The method of claim 1 , where identifying a modification to a portion of the digital audio data includes determining when an editing effect is applied to the audio data.

5. The method of claim 1 , where identifying a modification to a portion of the digital audio data includes identifying a discontinuity in the audio data.

6. The method of claim 1 , further comprising storing the corrected audio data.

7. A computer program product, encoded on a non-transitory computer-readable medium, operable to cause data processing apparatus to perform operations comprising:
receiving digital audio data;
identifying a modification to a portion of the digital audio data, the modification being in response to a user input to edit the portion of audio data; and
automatically correcting audio data surrounding one or more edit boundaries resulting from the identified modification, wherein automatically correcting the audio data comprises:
identifying a region including a specified number of samples prior to a first edit boundary and a specified number of samples after the first edit boundary,
identifying a plurality of frequency bands in the region, and
interpolating audio data from the region associated with the one or more edit boundaries, the interpolating including separately interpolating amplitude values for audio data across the region for each individual frequency band.

8. The computer program product of claim 7 , where interpolating a first frequency band includes:
identifying one or more first amplitude values associated with the audio data in the samples prior to the first edit boundary and that correspond to the first frequency band;
identifying one or more second amplitude values associated with the audio data in the samples prior to the first edit boundary and that correspond to the first frequency band; and
interpolating across the region of the audio data at that frequency band using the first amplitude and the second amplitude values.

9. The computer program product of claim 7 , where interpolating a first frequency band includes:
identifying one or more first phase values associated with the audio data in the samples prior to the first edit boundary and that correspond to the first frequency band;
identifying one or more second phase values associated with the audio data in the samples prior to the first edit boundary and that correspond to the first frequency band; and
interpolating across the region of the audio data at that frequency band using the first phase and the second phase values.

10. The computer program product of claim 7 , where identifying a modification to a portion of the digital audio data includes determining when an editing effect is applied to the audio data.

11. The computer program product of claim 7 , where identifying a modification to a portion of the digital audio data includes identifying a discontinuity in the audio data.

12. The computer program product of claim 7 , further comprising storing the corrected audio data.

13. A system comprising:
a user interface device; and
one or more computers operable to interact with the user interface device and to perform operations including:
receiving digital audio data;
identifying a modification to a portion of the digital audio data, the modification being in response to a user input to edit the portion of audio data; and
automatically correcting audio data surrounding one or more edit boundaries resulting from the identified modification including interpolating audio data from a region associated with the one or more edit boundaries, the interpolating including separately interpolating amplitude values for audio data across the region for each of a plurality of frequency bands, wherein automatically correcting the audio data further comprises:

identifying the region including identifying a specified number of samples prior to a first edit boundary and a specified number of samples after the first edit boundary,
identifying the plurality of frequency bands in the region; and
interpolating across the region for each individual frequency band.

14. The system of claim 13 , where interpolating a first frequency band includes:
identifying one or more first amplitude values associated with the audio data in the samples prior to the first edit boundary and that correspond to the first frequency band;
identifying one or more second amplitude values associated with the audio data in the samples prior to the first edit boundary and that correspond to the first frequency band; and
interpolating across the region of the audio data at that frequency band using the first amplitude and the second amplitude values.

15. The system of claim 13 , where interpolating a first frequency band includes:
identifying one or more first phase values associated with the audio data in the samples prior to the first edit boundary and that correspond to the first frequency band;
identifying one or more second phase values associated with the audio data in the samples prior to the first edit boundary and that correspond to the first frequency band; and
interpolating across the region of the audio data at that frequency band using the first phase and the second phase values.

16. The system of claim 13 , where identifying a modification to a portion of the digital audio data includes determining when an editing effect is applied to the audio data.

17. The system of claim 13 , where identifying a modification to a portion of the digital audio dat

Assignees

• Sanders Eric
• Van Winkle Charles
• Ramirez Daniel
• Johnston David E
• Adobe Systems Inc

Inventors

• Sanders Eric
• Van Winkle Charles
• Ramirez Daniel
• Johnston David E

Classifications

• G11B27/031

  Electronic editing of digitised analogue information signals, e.g. audio or video signals · CPC title

• G06F3/165

  Management of the audio stream, e.g. setting of volume, audio stream path · CPC title

• G10L21/0208

  Noise filtering · CPC title

• G11B20/1876 Primary

  Interpolating methods · CPC title

• G10L21/14

  by displaying frequency domain information · CPC title