The amplitude of a periodic variable is a measure of its change over a single period
Questions tagged [amplitude]
147 questions
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Gnuplot: How to plot semi circle amplitude graph?
The title is pretty self explanatory but here is a picture of what I'd like to do. I'm having a tough time figuring out if it's even possible.
Basically, I have data contains direction from 0 to 180 degree and amplitude each direction. How to make…
user3006147
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2 answers
Changing easing parameters
I have a tweening function to animate the camera angle using "Easing.Elastic.Out". How do I change the Period and Amplitude of the easing?
camera.lookAt(scene);
var controls = new THREE.OrbitControls(camera, renderer.domElement);
function…
juxpin
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Get realtime amplitude from audiojack (MIC) using AudioRecord(not MediaRecorder)
enter code hereI am trying to get realtime amplitude. The data is coming from a temp sensor connected to audiojack via MIC. I need to use AudioRecord as I need the data as it is(Raw data). The code I used is as below:
public class MainActivity…
SidK
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2 answers
How can i detect amplitude from FFT on Time-Domain signal
I have a signal of wave song and I have a problem with amplitudes.
%graph 1 time domain
song2 = song(1:size(song));
fs = 44100;
dt = 1/fs;
t = 0:dt:(length(song2)*dt)-dt;
figure();
plot(t,abs(song2)); xlabel('Seconds'); ylabel('Amplitude');
Then I…
Cvak
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Is there an (Amplitude max-min) function in Excel
i have search in excel an amplitude min max function that should be like that :
myCell = Amplitude(Table1[varType])
that return immediatly amplitude of desired column .
All of this without creating a cell Max and min and doing like myCell =…
Noj
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1 answer
correct amplitude of pwelch fft
I have a simple sinus signal with some noise.
If I try a simple FFT algorithm I get the amplitude of the signal(23) and the freq(2).
If I try the pwelch from Matlab with hanning window I am getting the right freq but the amplitude is wrong. How can…
Razvan
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How to Access and Get Amplitude of MP3 Sound on the Timeline?
I'm wanting to get the amplitude of a mp3 that's playing in my SWF. The problem is, it's embedded directly on the timeline.
Is there any way I can get to the sound (via ActionScript) that's playing when it's on the timeline?
Update: For more…
Paul Mignard
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Android AudioRecord Short Values - Can I consider the absolute value of negative amplitudes in a Sound Wave?
I am currently having trouble understanding the significance of negative amplitudes in a traditional Sound Wave, such as in the Short values of Android's Audio Record.
1. Is the amplitude still the distance between zero and the value of the node…
Joseph Grech
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Reading amplitude data from WAV file at certain interval
So I'm trying to read the amplitude data of a .wav file in order to use it in DFT later on, and I use this code to get the amplitude data in C# and put it into a .txt file
using System;
using System.Collections.Generic;
using System.IO;
using…
Megazero
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how to get a different amplitude of a recorded sound?
1-Purpose
My purpose is to display a different amplitude of a recorded sound when I playback this sound, for this reason I have to get (when playback) the amplitude of a recorded sound file.
2-What I've done
I've used QT function QAudioInput and…
The Man
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votes
1 answer
Extracting audio data every t seconds
I am trying to extract amplitude information from a sound loaded from a URL using the Web Audio API instantaneously (not in real time), which will likely require the OfflineAudioContext. I am expecting to obtain something along the lines of an array…
user76284
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2 answers
Simulink: Possible to form a Pulse Generator with amplitude between -1 and +1
Okay - I've got Simulink up and running and I'm using the Pulse Generator with a pretty simple transfer function and the scope. I would like however to use a pulse that goes from -1 to +1 instead of from 0 to +1. Is there any way to alter the Pulse…
JustADude
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Finding and counting audio drop-outs in an ecological recording
I am trying to assess how many audio drop outs are in a given sound file of an ecological soundscape.
Format: Wave
Samplingrate (Hertz): 192000
Channels (Mono/Stereo): Stereo
PCM (integer format): TRUE
Bit (8/16/24/32/64): 16
My project…
etgriffiths
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formula Amplitude using FFT
I want to ask about the formula of amplitude bellow. I am using Fast Fourier Transform. So it returns real and complex numbers.
after that I must search amplitude for each frequency.
My formula is
amplitude = 10 * log (real*real +…
Andryan Pramana
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Using fftw c libraries to get amplitude and phase of first 4 harmonics
I have a periodic series of 360 values. How can I use the fftw c libraries to get the amplitude and phase of the first, second, third and fourth harmonic?
If I do this for…
Atirag
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