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Questions tagged [visualizer]

255 questions
8
votes
2 answers

Android Visualizer FFT / waveform affected by device volume?

I'm working on some music analysis using the Visualizer class on Android 2.3.1. I am finding that the FFT and waveform magnitudes are affected by the volume of the device. This means that if the user has the volume turned down I receive little or…
user1035335
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How to add custom vertex labels in JUNG graph visualization?

How to use custom vertex labels in JUNG graph visualization? I am following Jung 2.0 Tutorial where I found that setVertexLabelTransformer() can be used to label the vertices, but these labels cannot be customized, to my knowledge. For example, the…
Dilini
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Why does my FFT gives a different visualizer output than Windows Media Player?

I am trying to implement an audio spectrum analyzer in android using the Visualizer class. I am getting FFT data in the onFftDataCapture() method of OnDataCaptureListener() event and I'm drawing that on the canvas using drawLines(). But the spectrum…
Raj
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1 answer

How to avoid "HTMLMediaElement already connected previously to a different MediaElementSourceNode" in the AudioContext Interface?

I've made an audio visualizer in React with the AudioContext interface and I want the user able to enable and disable it. The visualizer works fine and I can disable it as well (I just remove the vis component) However, when I want to enable it…
BrocoLee
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4 answers

java.lang.RuntimeException: Cannot initialize Visualizer engine, error: -4

I am getting below error when running app on API 16. java.lang.RuntimeException: Unable to start activity ComponentInfo{}: java.lang.RuntimeException: Cannot initialize Visualizer engine, error: -4 at…
Android Developer
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Can Android Visualizer Class be used on SoundPool object?

When using a SoundPool audio class, it definitely has some advantages over a MediaPlayer when just playing short audio clips. The two I've noticed is SoundPool is a lot faster. MediaPlayer can lag a bit on startup and it's much easier to go from one…
awbrown90
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1 answer

Vertex label in JUNG graph visualization

I wrote a little graph visualizer class: public void simpleGraph(SparseMultigraph graph, String name) { Layout layout = new ISOMLayout(graph); layout.setSize(new Dimension(800,800)); …
Martin Preusse
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6
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4 answers

Normalize FFT magnitude to imitate WMP

So, I've been working on a little visualizer for sound files, just for fun. I basically wanted to imitate the "Scope" and "Ocean Mist" visualizers in Windows Media Player. Scope was easy enough, but I'm having problems with Ocean Mist. I'm pretty…
Bevin
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10 answers

DataTable visualizer disappeared from my Visual Studio

A while ago I noticed I don't have a magnifying-glass next to my datatables. I used to have it, and somehow, sometime, it disappeared... Has anyone seen this happen? Do you know how to help me view my datatables again? Update: I'm still clueless…
Lea Cohen
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2 answers

Android : "cannot initialize visualizer engine"

I've started programming for Android 3 days ago, and today I wanted to do something more difficult using some classes from android Api. I find class Visualizer and at first attemp I had a problem. I read many post on different forums people who had…
Karol Cudzich
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2 answers

Visual Studio visualizer similar to Mole

Mole visualizer for WPF in Visual Studio is a great tool for debugging WPF apps. What I want to know is, is there a visualizer tool with Mole like functionality for general .Net debugging. I find the built in watch capabilities to be a little…
Simon Fox
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0 answers

Get amplitude from MediaPlayer using Visualizer

i've been reading another posts about calculate the amplitude in real time from a Mediaplayer, but i have no clear how to get a value useful for me. What i need is a linear amplitude value normalize between 0-100, but as i've watched in another…
Billyjoker
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5
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1 answer

Neo4j - set node captions to labels in web interface

When I created my graph database in Neo4j, I thought the node label was the same thing as what the node caption would be in the web browser visualizer. Instead, the node captions are set to the first property of the node by default. Is there a way…
Sergei Wallace
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4
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6 answers

Android Visualizer implementation crash

I am trying to implement the Android Visualizer class. I have looked up other trouble threads but I am still getting a fatal error. This all looks to me like it should work correctly, for whatever reason the AVD keeps on crashing. First off, I am…
YoungGuy
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4
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1 answer

Visual Studio: Dataset and DataTable Visualizer not working in watch window

I have just installed visual studio 2005 service pack 1 on a Windows 7 64 bit machine. Everything appears to work fine and I am able to run my project without any errors. However, when I am in debug mode I have noticed a problem with the "Watch"…
zzzzzzzzzzzzzzzzzzzzzzzzzzzzzz
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