# Questions tagged [music]

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### Which FFT Window to use for data gathering of complete mastered songs - for AI

I have a novel technology that I developed, which I plan on incorporating AI beginning with simply recording a basic machine learning strategy of Input - Output for eventual training. In this case ...
46 views

### How can I use a constant Q transform to detect low frequencies without making the buffer size too large?

I am trying to write code to detect musical notes within a signal. I have been reading up on different methods for extracting frequency information out of a signal to determine which notes were played ...
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### DOA beam pattern for circular array

Based on the tutorial for a linear array here, I've written the following code for a 6 microphone circular array. The array has a radius of 5cm. A beam pattern is generated but it doesn't look right ...
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### Extracting Musical Notes from two audio samples, then providing feedback to the second one based on first one, weekend project or need to learn more?

I am a second year Electronics student attempting to make a mini project in audio analysis. I am thinking about using FFT to convert and then compare the two audio signals, first one being the "...
1k views

### Bandwidth of an entire song

My question has to do with the difference between the frequencies of a single note, and the frequencies of an entire song. If I have a 5 second signal of the form: $x(t)=\sin(8\pi t)$, here is the ...
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1 vote
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### FOURIER TRANSFORM: How can i find the index of data points

I am a senior in high school and am currently trying to conduct an exploration of Fourier Analysis, specifically using the Discrete Fourier Transform to analyse a chord played on my piano. Basically, ...
1 vote
51 views

### MFCCs are useful for speech & music analysis. For music, why isn't the 12-tone scale used instead of the mel scale?

As far as I understand, the mel scale was developed empirically using something akin to "just noticeable differences" in a subject's perception of frequencies. The scale ends up being a log ...
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58 views

### Fourier Transform and Music Analysis

I am a senior in high-school and am currently trying to conduct an exploration on Fourier Analysis, specifically using the Discrete Fourier Transform to analyze a chord played on my piano. Basically, ...
309 views

### Smallest Eigenvalue in the Derivation of the MUSIC Algorithm

I am seeking clarification on a particular step in the derivation of the MUSIC algorithm as presented in a specific paper. Here, there is an intermediate step I cannot follow and I would appreciate ...
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### FMCW RADAR using Phased Array Antenna

I need assistance to calculate angle of arrival using MUSIC algorithm for Phased Antenna Array with GNU radio and USRP #Zeeshan
1 vote
155 views

### MUSIC algorithm on CSI data

I am trying to write a simulation code to estimate AOA's from channel state informations(CSI) using MUSIC algorithm. I am using OFDM with 64 subcarriers. Is there any material on how to estimate AOAs ...
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372 views

### How to use MUltiple SIgnal Classification (MUSIC) algorithm to detect the wavenumber of a received signal at array of sensors?

I am working on analyzing data obtained from Fiber Optic - Distributed Acoustic Sensor (DAS) to estimate the properties of acoustic waves that impinge FO cable, such as velocity of acoustic waves. FO-...
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418 views

### Can one use MUSIC algorithm to estimate DOA for a circular microphone array with a small radius?

I am trying to locate the sound source using MUSIC algorithm in a circular microphone array. The array that I am using is "ReSpeaker Mic Array - Far-field w/7 PDM Microphones", and the ...
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280 views

### confusion understanding/interpreting power spectrum of audio in MATLAB?

Please find attached snapshot. I am confused regarding power spectrum in MATLAB as according to google definition in attached snapshot"the distribution of the energy of a waveform among its ...
• 1,884
1 vote
309 views

### DSP function used by musical distortion plugins

In short: what kind of mathematical function was applied to this sine WAVE? I am trying to implement my own distortion plugins. Amongst other things I have read several chapters of Will Pirkle's book (...
30 views

### Segmenting audio in its different parts using deep learning

I am trying to segment a song into its different parts. In pop music, it's common for a song to have a verse and a chorus. And they repeat. So it should be possible to use deep learning to find the ...
1 vote
403 views

### Algorithms for real time multi-pitch guitar detection

I've been looking for info on this topic for a while and I came across several algorithms that may be suitable for this purpose. Specifically I'm interested in getting a frequency representation like ...
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125 views

### FFT vs Gabor Transform

I am quite new to signal processing, so I would need some help regarding a project. I am interested in increasing the bass of a song from Spotify. At first I was thinking that applying a FFT to it to ...
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211 views

### Are there ways to reduce the smearing of zero-padding interpolated data?

Are there ways to reduce the smearing / spectral leakage of zero-padding interpolated data? I learned that, given a small collection of samples, one can increase the frequency resolution of an FFT ...
1 vote
43 views

### Convert MUSIC algorithm to EV

I write some code, but result looks very strange: ...
359 views

### Synthesizing piano

The sound of the piano is something very complex. There are various elements to consider such as action, hammer, soundboard, sympathetic resonance, tuning age and even room reverb. Some companies (...
154 views

### Uniform density 2d peak detection of spectrogram

I am trying to recreate the algorithm used by Shazam to recognize music, as outlined in the paper An Industrial-Strength Audio Search Algorithm. The algorithm performs a specialized peak detection to ...
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176 views

### Why MUSIC algorithm fail when the antenna spacing is larger than half wavelength?

I'm studying MUSIC algorithm for far-field DOA estimation. I found that when the antenna spacing $d$ is larger than half wavelength $(\frac{\lambda}{2})$, the algorithm fails and the spatial spectrum ...
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480 views

### Why is the null of an adaptive beamformer narrower than antenna beam-width?

Question for those familiar with adaptive beamforming: Why is the null formed by an adaptive beamformer much narrower than the beamwidth of the antenna array? Concrete Example Suppose we have a simple ...
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1 vote
171 views

### Relation of pitch to frequency?only with fundamental frequency or also with harmonics?

How is pitch related to frequency.? If there is a pitch for a fundamental frequency, will that pitch be same for harmonics?
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### MUSIC implementation in Pyroomacoustics library

I am currently using the multiple signal classification (MUSIC) algorithm provided by the Pyroomacoustics library in order to estimate direction of arrival angles and it works pretty well for both ...
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1 vote
297 views

### How to apply MUSIC to FMCW radar IF data?

I'm working on target extraction with raw FMCW ADC data. I arranged my received data in an (numADCsamples x numAntennas x numChirpsPerFrame) radar cube. So far I am using range FFT and doppler FFT to ...
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### Is it correct to say that increasing the sampling frequency is same as compressing the duration of an audio signal in MATLAB?

I am trying to read and play with an audio signal in MATLAB. I have coded below clear [y,fs]=audioread('guitartune.wav'); sound(y,fs) This audio clip'guitartune....
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