Method and apparatus for identifying audio signal by removing noise
AssigneeElectronics and Telecommunications Research Institute
InventorsTae Jin PARK, Seung Kwon BEACK, Jong Mo SUNG, Tae Jin LEE, Jin Soo CHOI
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Abstract
An audio signal identification method and apparatus are provided. The audio signal identification method includes generating an amplitude map from an input audio signal, determining whether a portion of the amplitude map is a target portion corresponding to a target signal, using a pre-trained model, extracting feature data from the target portion, and identifying the audio signal based on the feature data.
Claims11
An audio signal identification method comprising:
- generating an amplitude map from an input audio signal;
- determining whether a portion of the amplitude map is a target portion corresponding to a target signal, using a pre-trained model;
- extracting feature data from the target portion;
- and
- identifying the audio signal based on the feature data.
A training method for identifying an audio signal, the training method comprising:
- receiving a plurality of sample amplitude maps comprising pre-identified information;
- determining whether a portion of each of the sample amplitude maps is a target portion corresponding to a target signal, using a hypothetical model;
- extracting feature data from the target portion;
- and
- adjusting the hypothetical model based on the feature data and the pre-identified information.
An audio signal identification apparatus comprising:
- a generator configured to generate an amplitude map from an input audio signal;
- a determiner configured to determine whether a portion of the amplitude map is a target portion corresponding to a target signal, using a pre-trained model;
- an extractor configured to extract feature data from the target portion;
- and
- an identifier configured to identify the audio signal based on the feature data using a database.
Dependencies are inferred from the claim text.