Systems and methods for facilitating higher confidence matching by a computer-based melody matching system

• US 8,212,135 B1
• Filed: 10/19/2011
• Issued: 07/03/2012
• Est. Priority Date: 10/19/2011
• Status: Active Grant

• Current Assignee: Google LLC (Alphabet Inc.), Daimler AG (Mercedes-Benz Group AG)
• Original Assignee: Google Inc. (Alphabet Inc.)
• Inventors: Ross, David, Bernstein, Yaniv, Sharifi, Matthew, Postelnicu, Gheorghe, Ponte, Jay Michael
• Primary Examiner(s): Donels, Jeffrey
• Application Number:
  US13/276,566
• Time in Patent Office: 258 Days
• Field of Search: 846/09
• US Class Current: 84/609
• CPC Class Codes: G10H 1/00 Details of electrophonic musical instruments
• CPC Class Codes: G10H 2240/075 Musical metadata derived from musical analysis or for use in electrophonic musical instruments
• CPC Class Codes: G10H 2240/141 Library retrieval matching, i.e. any of the steps of matching an inputted segment or phrase with musical database contents, e.g. query by humming, singing or playing; the steps may include, e.g. musical analysis of the input, musical feature extraction, query formulation, or details of the retrieval process

Abstract

Systems and methods for facilitating higher confidence matches are provided. In one embodiment, a system includes a memory that stores computer executable components, and a microprocessor that executes the computer executable components stored in the memory. The components can include a metadata matching component that determines a metadata match level between metadata of a plurality of files, and a thresholding component. The thresholding component may compare a metadata threshold with the metadata match level and output a signal configured to cause a decrease in a melody matching strength threshold from a first value to a second value based at least on the metadata match level being greater than the metadata threshold.

Claims

1. A system facilitating enhancement of confidence in melody matching, comprising:

a memory that stores computer executable components; and

a microprocessor that executes the following computer executable components stored in the memory;

a metadata matching component configured to determine a metadata match level between metadata of a plurality of files;

a thresholding component configured to;

compare the metadata match level with a metadata threshold; and

output a signal configured to cause a decrease in a melody matching strength threshold from a first value to a second value based at least on the metadata match level being greater than the metadata threshold; and

a melody match component that determines a melody match between the plurality of files.

2. The system of claim 1, wherein the melody match is determined based at least on a melody fingerprint computed from respective audio signals associated with the plurality of files.

3. The system of claim 2, wherein the metadata of the plurality of files comprises metadata descriptive of an artist associated with at least one of the audio signals associated with the plurality of files.

4. The system of claim 1, further comprising a melody match strength estimation component configured to determine a strength associated with the melody match.

5. The system of claim 1, wherein the metadata of the plurality of files comprises metadata descriptive of titles of the plurality of files.

6. The system of claim 1, wherein the decrease in the melody matching strength threshold from the first value to the second value is characterized by a step function.

7. The system of claim 1, wherein the decrease in the melody matching strength threshold from the first value to the second value is characterized by a continuous function.

8. The system of claim 1, wherein the plurality of files are media files.

9. The system of claim 1, wherein the first value and the second value are threshold strengths associated with a melody match between the plurality of files.

10. A method, comprising:

employing a microprocessor to execute computer executable components stored within a memory to perform the following;

determining a first metadata match level between metadata of a plurality of video channels;

comparing one or more metadata match levels with a metadata threshold, the one or more metadata match levels comprising the first metadata match level;

decreasing a melody matching strength threshold from a first value to a second value based on at least one of the one or more metadata match levels being greater than the metadata threshold; and

determining a melody match between the plurality of video channels.

11. The method of claim 10, wherein the decreasing the melody matching strength threshold from the first value to the second value is characterized by a step function.

12. The method of claim 10, wherein the decreasing the melody matching strength threshold from the first value to the second value is characterized by a continuous function.

13. The method of claim 10, wherein the melody match is determined based at least on a melody fingerprint computed from signals associated with the video channels.

14. The method of claim 10, further comprising determining a melody matching strength associated with the melody match.

15. The method of claim 10, wherein the first value and the second value are threshold strengths associated with a melody match between the plurality of video channels.

16. The method of claim 10, further comprising determining that the melody match is a valid match based at least on the melody matching strength being greater than the second value.

17. A method, comprising;

employing a microprocessor to execute computer executable components stored within a memory to perform the following;

receiving a media file embodying a user performance of a composition;

comparing metadata associated with the media file with metadata associated with a media file embodying a second performance;

determining a metadata match level between the metadata associated with the media file and the metadata associated with the media file embodying the second performance;

determining whether the metadata match level is greater than a metadata threshold;

decreasing a melody matching strength threshold from a first value a second value based at least on the metadata match level being greater than the metadata threshold; and

classifying the media file embodying the user performance as a valid melody match with media file embodying the second performance based at least on a strength of matching melodies between the media files being greater than the melody matching strength threshold.

18. The method of claim 17, further comprising:

maintaining the melody matching strength threshold at the first value based, at least, on the metadata match level being less than the metadata threshold.