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SAP – Signal Acquisition and Processing Project

FIXED PRICE : Less than 5000 Rs. Application Interface Design Posted: 17th May 2020 Ends: 01st Jul 2020 1 Proposals
Part I: generate a full scale consisting of 12 semitones For the first part of your project, you are asked to generate a range of music, starting from note La3 at 440 Hz. To do that, you can address the following steps:...
Part I: generate a full scale consisting of 12 semitones For the first part of your project, you are asked to generate a range of music, starting from note La3 at 440 Hz. To do that, you can address the following steps: • Start from 𝑓0=440 𝐻𝑧 and multiply this frequency by r = 1.05946 to go to the next frequency (semitone), • Generate the full scale made up of 12 semitones, each of duration equal to few hundreds of 𝑚𝑠, and listen to the signal, • Up / down two ranges, • Play two consecutive scales with both hands, ... Part II: transcript the music notes from some audio input recording This part aims to transcript piano music at the basic level. That is, one note is played at a certain time. The piano audio samples provided come from a real source (piano recording), therefore the audio file itself is not perfectly sound in tune. Some of the problems needed to solve are overtone analysis, noise reduction and frequency separation. Fast Fourier Transform (spectrogram) or wavelet analysis (scalogram) should be used for time-frequency analysis (a good explanation of these two analysis methods can be found at: http://mudasir.hubpages.com/hub/wavelets1). For example, using Matlab, you will be able to create a spectrogram/scalogram of the audio signal. HINT: you may need to perform low-pass filtering before the time-frequency analysis. You will need to write algorithms for frequency quantization and de-noising, and finally plot the extracted notes against their duration. In Figure 5 you have an example of such transcription obtained for the sample audio file piano.wav. Part III: watermark the audio input with some text information Once the notes are extracted, propose a method for inaudibly inserting a text message (for example, the name of the project developer) within the wav file. Therefore, in this part you are requested to perform the watermarking (either by LBS, or frequency-based) of your wav file. Finally, and if you still have time, estimate the SNR after the watermarking and propose some directions for improving it [1,2].
Skills: MATLAB
Client: saravana123

Looking for Artificial Intelligence software developer

FIXED PRICE : Less than 5000 Rs. Application Interface Design Posted: 03rd May 2020 Ends: 17th Jun 2020 0 Proposals
looking for a AI developer to develop a reactive machine, limited memory , theory of mind, fresher also welcome who have passed out from college having immense knowledge on product. interested people contact ASAP. Pra...
looking for a AI developer to develop a reactive machine, limited memory , theory of mind, fresher also welcome who have passed out from college having immense knowledge on product. interested people contact ASAP. Prasanna: (removed) Shashi Kiran: (removed)
Client: shashikiran83 , India
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