Take A MP3 Or WAV File And Plot A Graph Of Its Waveform Over Time?

Dec 9, 2009

I need to be able to take an MP3 or WAV file and plot a graph of its waveform over time. Prefferably without playing it first. The representation doesn't have to be amazingly accurate as it's not for EQ purposes. I just need to pinpoint certain points in the MP3 / WAV when specific music / sounds etc occur (similar to the display in Windows Sound Recorder).

how I can go about that, or if it's even possible in VB 2005?

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C# - Plot The Graph(line) From A File In Java?

Mar 6, 2010

I have a directory containing list of files.

Those files have some list of values as x and y ordered as line by line.

And my question is just I would like to read those files one by one and to plot line graphs based on those values.

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Draw A Waveform Graph (from Mp3 & Wav)?

Feb 14, 2010

I'm trying to draw a waveform graph(from mp3 & wav), I found this so far.

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File I/O And Registry :: Get Data From A Text File To Plot A Polar Graph Of Wind Direction Vs Wind Speed

Mar 22, 2010

I am new to vb and I am required to plot a graph in vb. I need to get data from a text file to plot a polar graph of Wind Direction vs Wind Speed. But opening the file from a text file is in a string format, and when i tried to convert to a double, it gives the error:

[Code]...

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Picture Box To Plot Graph?

Nov 18, 2010

points on picture box by several mouse down operation, perform either linear regression for best fit straight line for these points or best fit circular curve fitting for these points.User can use radio button to select either straight line or circular curve fitting. Plot the best fit graphic accordingly and save these graphic to a data file (result.txt).

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VS 2005 Plot A Excel Graph By Vb?

Jul 24, 2009

i am a newbie to visual basic 2005. i have a excel file contain x value and y value of points.i wan to plot a graph using these few points.after that display the graph in the vb.How can i do that??

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Plot A Graph From Values Calculated From A Database?

Apr 19, 2011

ive been struggling on this portion of my code for almost 3 days with no luck. i have a database containing a list of transactions (in this case, the product name, quantity and date of sale). I want to plot a graph for each product showing the amount sold each month for the past 12 months. The functions to calculate these values are working fine. but my problem is this:

each tab page is named after the product name:

TabControl_SaleOfProducts.TabPages.Add(
"TabPage_"
& ProductName, Item)

and then to this tab page i want to add the graph. but i cannot reference the newly created tab page?

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Use ZedGraph To Plot A Graph Based On Some Data?

Oct 2, 2009

I'm currently trying to use ZedGraph to plot a graph based on some data I have extracted from a machine, with reference to a user entered "Frequency" range. I has to be a line graph, with Frequency on the X-axis, and extracted data on the Y-axis. There are 4 channels for the machine, but all data values extracted are close to each other, so multiple Y-axes are not needed. I'm also trying to do it within a class, and the graph should only be drawn when I click "Button3", otherwise there would be no data anyway and button2 extracts the data.

Below are my class (the graph code is at the bottom) and form1, which button3 should call the class, but I'm stuck for both the button interfacing and the class writing. I have also attached the output I get so you can have a look at what I need. Open it in Excel to see the format. The whole program is also attached as a text file if you prefer it that way.

[Code]...

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Interface And Graphics :: Plot The Graph From The Serial Port?

Sep 20, 2011

I new in vb .net. Now doing the robot mapping project from the arduino serial port and VB 2010 as a GUI. The serial port can read the text from arduino sensor but how to plot the graph from all the sensor value? So when ultrasonic detect the distance will give the pixel or point. I using the picture box as a background grip map.

[Code]...

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Create A Graph Where The User Can Input Data Into Textboxes And Then Plot The Data?

Jun 15, 2009

I'm just trying to create a graph where the user can input data into textboxes and then plot the data. I am attempting to use Zedgraph, but open to other suggestions. The program below creates a plot, but it won't update when the textboxes are updated.

Imports ZedGraph
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

[code]....

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Generate A Real Time 2D Plot With Autoscaling?

Oct 27, 2010

I have finally made the switch VB.net and I am using VS2010 .NET 4.0 with WinForms. I want to generate a real time 2D plot with autoscaling and update the graphics/picturebox/form/<insert control here> from another thread so when I click a menu the device doesn't halt. The graphics are intensive in that a function is continually reading from hardware and drawing the data. I have been able to do this in VB6 (minus the multithreading) with GDI API and it ran great. Now in VB.NET GDI+ is used which is extremely slow. So my questions are as follows:

1) Should I go back to GDI commands or will this be outdated soon.

2) Should I use Direct2D, if so do I need to switch to WPF and are there any WinForm examples

3) Best approach to multithread this, if I double buffer can I have the GUI thread periodically read the buffer and display it. How can I tell the drawing thread to post an update and the UI thread displays it when it has the chance, similar to using InvalidateRect()

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Draw A Waveform Of A Wave File?

Aug 28, 2011

how to draw a waveform represenatation of a wave a wavefile and/or an MP3? Even better, can it be drawn in real-time while the file is playng?

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Tracing A Graph In Real Time From Excel

Jul 5, 2010

I have a project to make a GUI using VB.net and retreiving data from an excel spreadsheet every three minutes and draws a graph in real time. The excel file is filled every 3 minutes by a new value (level of water in a tank).As I made started making this interface and I have a problem with retrieving data from a cell of the excel spreadsheet and update this action automatically every three minutes.

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VS 2008 Plotting Real Time Graph?

Jan 13, 2010

Currently, my circuit is connected to a power supply and is connected to the computer via a RS232 cable. Voltage level is extracted and the real-time voltage level is plotted (see attached image) and it will keep movingBut you will realise that there isnt any time shown on the X-axis. I would like to display time in such a way:Each long marker will represent 1 second and there are 4 long marker, which will represent up to 4 seconds.When the (5th second) voltage is sense and the real-time voltage is drawn, i would like the new time (5th second) to replace into the 1st marker postion, the (6th second) to replace the 2nd marker position, so on and so forth. The replacement will continue

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Draw A Real Time Graph With Colored Area

Dec 26, 2010

I want to draw graph in visual basic 2010 form which changes with time. Just like the CPU usage history graph in the "Windows task manager" dialog box. Thats time vs. usage graph. I want to make applications with that kind of graph.

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Forms :: Transparent Label Over Real Time Graph?

Apr 11, 2011

I'm trying to create a label that displays sensor output readings. These are small labels inside a picturebox that has a real time graph of the sensors. I'm trying to make the labels transparent or semi-transparent in order to see the entire graph. Setting the labels background color property to transparent only gives the labels the same color property of the picturebox not the actual images of the picture box. I have set the label.parent = picturebox1.

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Constructing A Waveform In .net?

Jun 5, 2011

constructing a waveform in vb.net. Can maybe someone give me a hint of how to make one? (a bit of code would be nice) I already know that to generate a waveform, you need a timer, if there anything else?

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Audio Player With Waveform?

Jun 27, 2011

I'm looking for a free audio player control that has ability to display waveform of the audio being played.

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Graph A CSV File In VB?

Apr 30, 2012

I have a CSV file in my working directory and dont know how to load in into a graph in VB. I already loaded my chart into the form and its called "Chart1" with "Series1".

The CSV has the following structure:

Date Value1 Value2
27/04/2012 45.1 60.1
26/04/2012 45.2 60.2
.. ..

how to extract this data from the "*.csv" file and put in it a graph where the Date is the x axis and the Value2 is the y axis.

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Use Zed Graph Web To Graph A Dataset Or Datatable?

Feb 23, 2011

How can i use zed graph web to graph a dataset or datatable, the only examples i have found use test data.

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C# - Play Sound In .Net Using Generated Waveform Data?

Jul 5, 2009

How can I play a sound based on waveform data that my .Net program is generating from user input and mathematical functions? By "waveform data" I am mean SPL values in a fixed interval time-series (probably 44.1 kHz). I presume that this requires some kind of streaming buffer arrangement.Note, that this has to be live/real-time, so just creating a .wav file and then playing that will not be sufficient. VB.net is preferred, but C# is acceptable also.

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Converting Voltage Level To Oscilloscope Waveform

Dec 6, 2009

Basically, my circuit board is connected to a solar cell and also a power supply(those laboratory DC power supply used in schools) and its connected to the computer via a RS232 Serial cable port. Thru the serial cable port, a voltage level is sensed and is displayed on the "Voltage Level in Volts(V)" -- See attach imageAs for now, i am also needed to display the voltage level into another type form intead of just Dial Voltmeter. Maybe to display the voltage level to a waveform like what we see on the oscilloscope ? I came across a suggestion from someone regarding the oscilloscope, but its in C# instead, and after converting, the codes does not work. Hmm.. ?

>> Therefore, i hope to get some guidance on how to display the voltage level into a waveform as what we see on the oscilloscope.

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VS 2008 Voltage Level Into Oscilloscope Waveform?

Dec 6, 2009

As mention in another thread ( if you have came across it --> Getting voltage from RS232 & allow dial voltmeter to point according to voltage level ), my circuit board is connected to solar cell and also a power supply(those laboratory DC power supply used in schools) and its connected to the computer via a RS232 Serial cable port. Thru the serial cable port, a voltage level is sensed and is displayed on the "Voltage Level in Volts(V)" -- See attach imageAs for now, i am also needed to display the voltage level into another type form intead of just Dial Voltmeter.Maybe to display the voltage level to a waveform like what we see on the oscilloscope ? I came across a suggestion from someone regarding the oscilloscope, but its in C# instead, and after converting, the codes does not work.

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Create A Graph From A Text File?

May 9, 2012

I need to create a graph from a text file. The format of the text file is like this[code]...

Basicaly i need to import this data in, the first 4 lines are values for a formula. The remaining values are to be put into a fomula and then graph the result!! Obviously i'm a beginner so just learning as much as i can from the web

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Display The Graph Of A WAV Sound File?

Jun 3, 2009

i would develop a program that displays the graph/spectrum of a WAV sound file located on the computer.

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VS 2008 : Draw Graph From Excel File?

Mar 26, 2009

Is there a way to draw a graph in real time. The excel file has one column with the time in sec.(x) and the other column is data(y). The examples with charts I've seen is about converting to a picture, then paste it to a picturebox.

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Dequeue Data In Paint Event Of A UserControl To Show Continuously Moving Waveform?

May 11, 2011

Given this illustration and basic code, how do I dequeue and draw the data that has been inserted into the User Control's Preperty queue? The graph/chart will need to show anywhere from 1 to 120 seconds of data, with each second representing electrical waveform data that arrives each second with a variable amount of sample data..The timer interval will have to vary with the amount of incoming data so that it shows a continuously moving waveform from right to left and the rate of drawing keeps up with the amount of data arriving. (so the queue doesn't get backed up)

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Output A Graph Drawn In Program And Plotted With Data To Pdf File Format?

Mar 31, 2010

Is it possible to output a graph drawn in vb.net and plotted with data to a pdf file format? or any microsoft office format?

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Convert Positive And Negative Math.Sin (waveform Output Values) Into (unsigned) Byte Array?

Apr 19, 2011

I'm creating an emulator for a device to simulate wave forms. My challenge is that when I try to convert the output of the following code, I can't convert the Math.Sin's double output into byte values that lend themselves to the byte array format required by an existing graphing control as listed at bottom below. I''m not sure how to handle this when the sin function creates negative values but the byte values will need to be positive and basically 'shifted up' so that anything over 127 is negative. (0 - 255) unsigned. BitConverter.GetBytes has been suggested but THIS is the result of that attempt.

[Code]....

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Draw Bar Graph - Draw A Graph Except MSChart Tool?

Jul 2, 2009

I have to draw a bar graph in my vb.net program. I used AxMSChart to create a graph. Everything has gone fine but when i published this and run on Vista PC, all form was good except my form includes MSChart. It says class not registered.So i have to draw a graph except MSChart tool.

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