visualizer

问题 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 posts they are performing a db calculation which has not much sense, cause they are not normalized to max 0dB value (from How to calculate the audio amplitude in real time (android)): double amplitude = 0; for (int i = 0; i < audioData.length/2; i++) {

问题 re: How to build MIDI file visualizer to get input from MIDI file and display MIDI timeline over the keyboard via DLP projector to match notes played by a real player Brendan Kavanagh is using such tool to build videos lighting up his woogie boogie played on piano https://www.youtube.com/watch?v=E3FTpv_R3EA Lighting Up Boogie Woogie and Blues Piano (Dr K) or https://www.youtube.com/watch?v=E3FTpv_R3EA&list=RDE3FTpv_R3EA&start_radio=1 https://www.bing.com/images/search?q=midi+file

问题 re: How to build MIDI file visualizer to get input from MIDI file and display MIDI timeline over the keyboard via DLP projector to match notes played by a real player Brendan Kavanagh is using such tool to build videos lighting up his woogie boogie played on piano https://www.youtube.com/watch?v=E3FTpv_R3EA Lighting Up Boogie Woogie and Blues Piano (Dr K) or https://www.youtube.com/watch?v=E3FTpv_R3EA&list=RDE3FTpv_R3EA&start_radio=1 https://www.bing.com/images/search?q=midi+file

问题 I'm new to android programming and audio visualization. I want to create a simple audio visualizer using MediaPlayer and Visualizer classes. My problem is, I don't know what wave form data really is. Must I use it to visualize audio? I'm using the code below. It's problem is, it will only visualize audio for the first 10-12 seconds of the file; after that, I'm unable to capture more data! Where did I go wrong? public void attachVisualizer() { Visualizer vis = new Visualizer(mPlayer

问题 In the sample AudioFxDemo.java, provided with the SDK, I get a java.lang.RuntimeException: Cannot initialize Visualizer engine, error: -4 when trying to create the android.media.audiofx.Visualizer mVisualizer = new Visualizer(mMediaPlayer.getAudioSessionId()); (AudioFxDemo.java:173). As far as I can see, the error originates in the native code, (lines 266 ff.) An error also happens when trying to create the android.media.audiofx.Equalizer: mEqualizer = new Equalizer(0, mMediaPlayer

问题 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 below code produces three vertices, having vertex-labels 1,2,4: import edu.uci.ics.jung.algorithms.layout.CircleLayout; import edu.uci.ics.jung.algorithms.layout.Layout; import edu.uci.ics.jung.graph.Graph; import edu.uci.ics.jung.graph

问题 How to add two edges having the same label but different endpoints? For example, I want to add two edges having the same label 'label1', one from vertex v-1 to vertex v-2 and the other one from vertex v-2 to v-3. Part of the code would be: g.addEdge("label1","v-1","v-2"); g.addEdge("label1","v-2","v-3"); But JUNG does not allow to add two edges with the same label. It gives an error: edge label1 already exists in this graph with endpoints [v-1, v-2] and cannot be added with endpoints [v-2, v

问题 I am trying to find a LINQ to SQL visualizer for Visual Studio 2010. Anybody know of one somewhere? When i was using vs 2008 i used this one. But with vs 2010 it does not work. I tried this one, but it didn't work either! Is there a visual studio 2010 visualizer for Linq to SQL ?? thanks The tools must be integrated in vs 2010. 回答1: After research i found this article and they talk we need to recompile the linq-to-sql visualizer with vs 2010 dll reference, and it's working very nicely. So

问题 I have created a debugger visualizer in VS2008. There are two classes i've made, in the same .dll :- BinaryDataDebuggerVisualizer ImageDebuggerVisualizer The image one works fine (eg. the magnify glass appears in debug mode) but not for the byte[] one (BinaryDataDV). What my visualizer does is display the binary data as an image in a modal window (if the data is a legit image). I compiled to code in Release mode, then dropped the .dll into C:\Users\\Documents\Visual Studio 2008\Visualizers

问题 As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references, or expertise, but this question will likely solicit debate, arguments, polling, or extended discussion. If you feel that this question can be improved and possibly reopened, visit the help center for guidance. Closed 7 years ago . Does anyone have any recommendations for applications or browser plugins that make browsing and visualizing JSON APIs easy. Please