Questions tagged [visualizer]
255 questions
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Zoom and Moving based on audio information in FFMPEG
I recently wondered if it is possible to zoom or move things in FFMPEG based on an audio source.
I already played around with complex filters as they allow some audio visualization but didn't really manage to move/zoom things based on sound. See…
Mattstir
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1 answer
VLCJ - Visualizer has no output
I am trying to get VLCJ to do a visualizer for the mp3 files its playing from a HTTP stream. Video shows up when I stream one. But when audio plays, nothing happens.
This is my code on the cliente side
EmbeddedMediaPlayerComponent empc = new…
Pedro Fernandes
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Uncaught TypeError: Failed to execute 'createMediaElementSource' on 'AudioContext': parameter 1 is not of type 'HTMLMediaElement'
I'm currently trying to create an audio visualizer in JavaScript and this error keeps getting thrown:
Uncaught TypeError: Failed to execute 'createMediaElementSource' on
'AudioContext': parameter 1 is not of type 'HTMLMediaElement'.
I'm not…
sonyansachdev
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Dimitre Novatchev's XPath visualizer help
I want to try what looks like a really cool tool. I've dl'd the FF version from http://www.huttar.net/dimitre/XPV/TopXML-XPV.html.
I open XPathMain.htm in FireFox, Browse to the provided test1.xml file, click Process File, with the default //* in…
dt1000
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Processing FFT Background-Noise?
I was doing an "live-audio-visualizer" in Processing. Everything is working fine except of this:
Even if I don't play any music/sound in the background my program shows that there is sound. I don't know why this happens..
Here's my code:
import…
32byTe
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1 answer
Understanding onWaveFormDataCapture byte array format
I'm analyzing audio signals on Android. First tried with MIC and succeeded. Now I'm trying to apply FFT on MP3 data comes from Visualizer.OnDataCaptureListener's* onWaveFormDataCapturemethod which is linked to MediaPlayer. There is a byte array…
Phillip
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How to build Audio Visualiser from Video in JavaScript
I'm working on a project which will have a audio playlist, Along with that i have to build a audio visualizer. I have a rough idea about how to do this if the source is an audio. The problem is, the source is a m3u8 and i'm using Hls.js with a HTML…
Rinas Musthafa
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Turning Visualizer's getFft() into a float[] representing a bar spectrum
I'm currently struggling with a number of DSP concepts when trying to make sense of the data returned from the Visualizer class's getFft() method.
Ultimately I'm looking to accomplish something like this:
float[] getBarSpectrum(int barCount)
{
…
Jon Halliday
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web audio api visualizer is not working in safari, music is playing though
visualizer is not appearing in safari only. The following code works fine in other browsers.
window.AudioContext=window.AudioContext||window.webkitAudioContext||window.mozAudioContext;
function player(){
context=new…
Taslim
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1 answer
Visual Studio Debug Visualizer not working for Datatable (Unhandled exception has occurred in a component in your application)
Unhandled exception has occurred in a component in your application.
When I click the the magnifier button in debug model, the debug visualizer doesn't work only for datatable, while working for other types like string.
I have searched old…
Lucius
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1 answer
Webaudio audio visualizer, logarithmic scale x axis
This code plot a linear sequence of frequency data in a canvas object. How to visualize the frequency in a logarithmic X axis using getByteFrequencyData in a webaudio context?
var analyser = audioContext.createAnalyser();
[...]
frameLooper();…
Carlo Peluso
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1 answer
Canvas Audio Visualizer not appearing in Safari
I'm creating an Audio Visualizer for a website using Canvas, but it's not appearing in Safari. I'm thinking it could be an issue with loading the audio, as the visualizer won't display until the audio loads.
Here is what I'm using to load the…
Eric Wood
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Audio Visualizer with Canvas
I'm building an audio visualizer based on a few different codepen experiments I found. I'm new to canvas, and am trying to figure out how to make this run a little more smoothly. So far, it's working pretty well:…
Eric Wood
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want to build something similar cylindo or Adobe scene7
I want to develop something like http://www.cylindo.com/solution/ (360 HD Viewer) or adobe scene7 where the user can change the colors or patterns of our products on fly by selecting the choices, something like visualizer.
So, I want to understand…
Ravikiran Patil
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Android Visualizer - 3 error
I was looking everywhere to solve , but nothing helps. As i see everything is set ok , but visualizer is not working.
Activity
package com.example.daber.testapplication;
import android.media.AudioManager;
import android.media.MediaPlayer;
import…
Marcin Dąbrowski
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