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0answers
19 views

Frequency cut-offs for guitar amp tone [migrated]

I am wanting to know what the typical frequency cut-offs are for the bass/mid/treble controls on a pre-1990s guitar amp. I want to simulate them in Java. So basically I have ...
1
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1answer
47 views

Detection of regions of voice in music

I want to detect the regions of voice in a song. Currently, I am using the fact that the vocals in the song are recorded as center panned. So, I am removing all center panned audio from the song. ...
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2answers
32 views

Generating Music Tones, How to handle when tones overlap? (16bit samples) [duplicate]

If i add the two tones then the result if two peaks are added together will be greater then the the sample max (2^15). For the life of me I couldn't think of the right words to google. Think i have ...
1
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1answer
53 views

How can frequency dispersion in a vibrating string be modelled using an LTI filter?

According to JOS on stiff-string synthesis, stiff strings (like on a piano) introduce inharmonicity (i.e. the harmonics of the tone are not all in tune) due to different frequency components of the ...
2
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1answer
79 views

Guitar String Replucks

I'm analyzing guitar string plucks and sustains. I'm having good success with auto correlation using FFT's. Now I'd like to detect plucks while the string is still vibrating. Since I already am ...
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2answers
97 views

Detect song changes in audio stream

I have a stream of music that I'm reading(from a microphone, from an online streaming source or whatever). And I want to have a system that will detect when a song changes. The question is, is this ...
4
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3answers
135 views

Harmonic errors in acoustic instruments

If a note has a fundamental frequency of 100Hz, then its second harmonic is located at 200Hz and its tenth harmonic is located at 1000Hz. But for acoustic instruments, the harmonics will not occur at ...
5
votes
4answers
594 views

Most efficient way to extract frequency components of audio signal with near-human accuracy in real time

I'm trying to work out how (if possible) to extract the frequency components of an arbitrary audio sample (typically music) in an FFT-like manner, but in my research on the FFT algorithm, I'm learning ...
3
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3answers
627 views

Does taking the Hilbert transform extract the envelope of audio signals?

I want to extract the envelope of music signals with a sample rate of 44.1kHz. I used the MATLAB command: abs(hilbert(mysignals)), but the resulting signal is ...
2
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1answer
165 views

Pitch detection algorithm for minsample size

I am looking for a pitch detection algorithm that uses the least number of samples. I don't care about the processing time. I hope to use this on audio signals. I have tried using the one at the ...
1
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0answers
119 views

Tool for Harmonic Analysis & Synthesis

I've been using a program for identifying harmonics for a wave after doing a fourier analysis. http://www.phon.ucl.ac.uk/resource/sfs/esynth.htm I would like to be able to tweak some of the ...
10
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2answers
224 views

Sound synthesis effects for natural sounds

I´m currently working on an accordion synthesizer and I would like to make it sound as natural as possible. I really like how the following wave sounds: ...
6
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1answer
156 views

What are the basic categories of operations performed on audio signals to create interesting sounds?

I don't know if this question will make sense as I'm very new to dsp. In my limited foray into audio dsp I've come across: Frequency Modulation Amplitude Modulation Additive Synthesis Subtractive ...
2
votes
1answer
102 views

Normalizing loudness level of a set of songs

I like to listen to instrumental music while trying to sleep. So, I've selected 20 songs from my music archive to listen to when I go to bed. The problem is that the loudness levels of the songs ...
3
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1answer
83 views

Estimating harmonic loudness

I'm working with data that looks something like this: ...
5
votes
1answer
113 views

How do Phons relate to loudness?

Let's say I have the very same signal stored in 2 .wav files. And lets say I process each file using a function, and it is established that one file is 20 phons ...
6
votes
2answers
860 views

Converting a pitch bend (MIDI) value to a “normal” pitch value

I am trying an offline LPC analysis and synthesis using the rt_lpc (real-time LPC) implementation as given here. There are some functions within the program that can be used for an offline LPC ...
5
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2answers
257 views

Guitar effects explanation books

Can you please suggest some books to get how guitar effects: distortion, overdrive, phaser and so on are achieved ?
8
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2answers
202 views

What methodology to use for discrimination of different (musical?) tones

I am trying to research and figure out how best to attack this problem. It straddles music processing, image processing, and signal processing, and so there are a myriad number of ways to look at it. ...
3
votes
3answers
200 views

How to build a program that gives you on the fly the chords of the song while listening to it?

I am trying to think how can I program a SW that can recognize Chords on the fly. since I know nothing about music, Can I assume that the chords are orthogonal and unique? I guess I can since it is ...
8
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1answer
554 views

Find similar Music using FFT Spectrums

I have been experimenting some weeks to find a way to match/find similar Songs in a Library containing different Genres of Music. My first try was to Detect Features like Tempo or how much Bass there ...
4
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3answers
643 views

How is a “good” or “bad” singer defined in signal processing terms?

I was watching the American and Indian idol auditions on youtube earlier in the day. I watched both successful and failed contestants and I was able to distinguish the really bad from the good singers ...
10
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2answers
222 views

Inverse polyphonic chord recognition

Polyphonic music transcription does not currently appear to be a solved problem. How about the inverse of a small portion of the problem. Are there any kind of spectral characteristics (from an ...