Neural network classifier for separating audio sources from a monophonic audio signal
A technology of audio signal and neural network, which is applied in voice analysis, instrumentation, voice recognition, etc., and can solve problems such as ineffective equalization
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[0024] The present invention is capable of componentizing and sorting multiple arbitrary and a priori unknown audio sources downmixed to a single monophonic audio signal.
[0025] As shown in FIG. 1 , multiple audio sources 10 such as speech, stringed instruments, and percussion are downmixed (step 12 ) to a single monophonic audio channel 14 . A mono signal can be a conventional mono mix, or it can be one channel of a stereo or multi-channel signal. In most cases, there is no a priori information about the specific type of audio sources in a specific mix, the signals themselves, how many different signals are included, or the mixing coefficients. The types of audio channels that can be included in a particular mix are known. For example, an application could be for categorizing sources or primary sources in a music mix. The classifier will know that possible sources include boys, girls, stringed instruments, percussion, etc. The classifier will not know which or how many o...
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