Abstract: A method for recognizing a song, including: acquiring a target song segment and transforming the target song segment to generate a corresponding first spectrum map; generating a multi-dimensional first feature vector according to the first spectrum map and a preset neural network model; acquiring second feature vectors of pre-stored songs, wherein one pre-stored song is divided into a plurality of pre-stored song segments, one pre-stored song segment corresponds to one second feature vector, and the first feature vector and the second feature vectors have the same number of dimensions; calculating similarities between the first feature vector and the second feature vectors, and determining a maximum similarity; and determining that the target song segment and a pre-stored song corresponding to the maximum similarity are different versions of the same song in response to the maximum similarity being greater than a preset threshold.

Abstract: A method of determining an audio delay and a corresponding device are provided. The first audio data and second audio data are obtained. A first sub-fingerprint sequence of the first audio data and a second sub-fingerprint sequence of the second audio data is extracted. The first sub-fingerprint sequence includes at least one first sub-fingerprint and the second sub-fingerprint sequence includes at least one second sub-fingerprint. Processing circuitry determines similarity coefficients corresponding to similarities between the first sub-fingerprint sequence and the second sub-fingerprint sequence. The processing circuitry determines a matching level between the first sub-fingerprint sequence and the second sub-fingerprint sequence according to the similarity coefficients. The processing circuitry determines, according to the matching level, a delay of the second audio data relative to the first audio data.

Abstract: A method of determining an audio delay and a corresponding device are provided. The first audio data and second audio data are obtained. A first sub-fingerprint sequence of the first audio data and a second sub-fingerprint sequence of the second audio data is extracted. The first sub-fingerprint sequence includes at least one first sub-fingerprint and the second sub-fingerprint sequence includes at least one second sub-fingerprint. Processing circuitry determines similarity coefficients corresponding to similarities between the first sub-fingerprint sequence and the second sub-fingerprint sequence. The processing circuitry determines a matching level between the first sub-fingerprint sequence and the second sub-fingerprint sequence according to the similarity coefficients. The processing circuitry determines, according to the matching level, a delay of the second audio data relative to the first audio data.

Abstract: A method and apparatus for eliminating popping sounds at the beginning of audio includes: examining audio frames within a pre-set time period at the beginning of audio to determine a popping residing section; applying popping elimination to audio frames in the popping residing section; calculating an average value of amplitudes of M audio frames preceding the popping residing section and an average value of amplitudes of K audio frames succeeding the popping residing section; setting the amplitudes of the audio frames in the popping residing section to zero in response to a determination that the two average values are both smaller than a pre-set sound reduction threshold; weakening the amplitudes of the audio frames in the popping residing section in response to a determination that both the two average values are not smaller than a pre-set sound reduction threshold; M and K are integers larger than one.

Abstract: The present application discloses a data processing method and a terminal thereof. The method includes: obtaining, in real time, target audio data from an on-line source; processing the target audio data using a first audio data processing approach and playing the processed target audio data at the terminal; while playing the processed target audio data: obtaining an audio data processing approach transition instruction, the audio data processing approach transition instruction including a second audio data processing approach and a real-time window of switching from the first audio data processing approach to the second audio data processing approach; in response to the audio data processing approach transition instruction, processing the target audio data received in the real-time window using the first audio data processing approach and the second audio data processing approach separately; and determining output audio data to be played at the terminal during the real-time window.

Abstract: The present application discloses a data processing method and a terminal thereof. The method includes: obtaining, in real time, target audio data from an on-line source; processing the target audio data using a first audio data processing approach and playing the processed target audio data at the terminal; while playing the processed target audio data: obtaining an audio data processing approach transition instruction, the audio data processing approach transition instruction including a second audio data processing approach and a real-time window of switching from the first audio data processing approach to the second audio data processing approach; in response to the audio data processing approach transition instruction, processing the target audio data received in the real-time window using the first audio data processing approach and the second audio data processing approach separately; and determining output audio data to be played at the terminal during the real-time window.

Abstract: A method and apparatus for eliminating popping sounds at the beginning of audio includes: examining audio frames within a pre-set time period at the beginning of audio to determine a popping residing section; applying popping elimination to audio frames in the popping residing section; calculating an average value of amplitudes of M audio frames preceding the popping residing section and an average value of amplitudes of K audio frames succeeding the popping residing section; setting the amplitudes of the audio frames in the popping residing section to zero in response to a determination that the two average values are both smaller than a pre-set sound reduction threshold; weakening the amplitudes of the audio frames in the popping residing section in response to a determination that both the two average values are not smaller than a pre-set sound reduction threshold; M and K are integers larger than one.