Abstract

AbstractIn the fast-emerging world today, where there are numerous ways of expressing our ideas, speech is proven to be the best. The most essential aspect of this is to have a good voice pitch level, which is the root cause for the success of expressing our intention to the audience. Grabbing the attention of the target audience is the challenging part. The advancements and improvements in the speech processing domain made our lives easier. Today we have several algorithms in the speech processing domain. Pitch shifting is one of the speech processing techniques that helps to shift the pitch level of the speaker to a proper level. This proper pitched voice can help in greatly influencing the audience. Hence, there is a need for the usage of most effective time domain/frequency domain pitch shifting algorithms. This project can be implemented by using the short-time Fourier transform (STFT) technique with improved time–frequency resolution for analysis of the input speech signal. The analysis of the speech signal can be performed using the STFT algorithm in MATLAB by creating a GUI using the MATLAB App Designer and further evaluating the results.KeywordsShort-time fourier transform (STFT)Discrete fourier transform (DFT)Pitch shifting

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