Questions tagged [psychoacoustics]

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801 views

Which transform most closely mimics the human auditory system?

The Fourier transform is commonly used for frequency analysis of sounds. However, it has some disadvantages when it comes to analyzing the human perception of sound. For example, its frequency bins ...
133 views

Acoustic room simulation - Craven's hypothesis

I'm reading Udo Zölzer's "Digital Audio Signal Processing" and there's a piece about acoustic room simulation. This question will be more about maths and acoustics, but I assume anybody who does DSP ...
1k views

The minimal signal to noise ratio (SNR) for people to understand a speech in the noisy background

This question seems easy to find an answer but I got lost in the end. I am trying to find the threshold for people to understand speech in a noisy environment. For example, assume the background noise ...
32 views

Length of padding for multiple samples stored in a single MP3 file

I have 20 short audio samples of a piano playing a single note. Due to internal limitations of my application, I need to concatenate and combine these into a single lossy file (either MP3 or AAC). ...
721 views

Explanation of OASPL and SEL

I have data of different SPL for different 1/3 center frequencies. Is it correct to sum the pressures at a mean square basis of those SPL values (and then convert them back to SPL) to obtain the OASPL ...
98 views

Mathematical reason for MCPP in audio recognition?

MCPP uses a weird graph of human phychoacoustics measurements called MEL scale to process digital audio. Why is MEL used in DSP voice recognition if it's based on logarithmic human perception, and ...
23 views

I am trying to calculate masking threshold using power spectral density but is is given in the attached document that global masking threshold is the sum of individual masking threshold and threshold ...
36 views

Calculate the tension of a triad of notes

I'm trying to implement and calculate the tonal tension of a triad (and its harmonics) following the definition given here: https://pdfs.semanticscholar.org/f05e/56c9548fa18c64efeed248742e3a6afb0c02....
508 views

How to assess perceptual volume from FFT

So far I could estimate signal volume from FFT using amplitude information, then adding all amplitudes together and divide this number by the number of frequencies. But I think this method does not ...
31 views

What is the driving Voltage?

While I was looking into ultrasonic transducer in order to transmit and receive a beam, I came across specification of a transducer stating driving voltage as 20Vrms. I am not sure what actually does ...
63 views

Why do third-octave bands have a ratio of cube root of two?

Without sounding tautological, I guess it boils down to the definition of the third octave, which is not: 2/3*Fc but defined as the cube root of 2 ratio between frequencies. Why is a third-octave ...
99 views

What is the use of perception calculation in Speaker Identification?

I'm currently trying to find audio features to train a neural network that distinguishes people, and I came across MFCC which is used a lot for speech verification. As far as I understand the ...
67 views

Trouble Implementing Huggins Binaural Pitch

I'm trying to make an implementation of the Huggins Binaural Pitch illusion, which is where if you play whitenoise into each ear, but offset one ear by a period $T$ that it will create the illusion of ...
147 views

Authoritative DSP book/reference material on Psychoacoustics

I am an auto didactic Electrical Engineer currently pursuing a goal to design a custom application targeted at deeply embedded linux(think BBB or even Raspberrypi-2) type device. My DSP background is ...
144 views

Objective, repeatable sound quality measurements and metrics

I am currently doing an electronics design for a basic 2.5W speaker amplifier for an embedded system based on COTS parts (e.g. codec and amp), similar to what one would find in a tablet. Aside from a ...
14 views

I am reading this paper Perceptual Based Adversarial Audio Attacks I have a doubt what is meant by weighting in the frequency domain and what does Section 3.4-equation-4 wants to convey .Please refer ...