Graphic Visualizer For System Audio
Feb 19, 2010
I'm working on a side project which, put simply, allows for the playing of audio files of multiple types through the form or system (My.Computer.Audio.[...]). I need to grab the audio levels of sound currently playing on the system -- not necessarily what's just playing through my form.
A "full-audio graphic visualizer" if you will. However I just need a method of grabbing the data in the first place - the rest I have taken care of. The different values you see in a graphic equalizer are what I need to grab.
If you had music playing via Songbird, and started playing a podcast voice MP3 in Windows Media Player, I want to have it all-inclusive. I've looked in the My.Computer.Audio namespace, looked into Fast Fourier Transforms (which turned out to seem much more adequate for equalizers as opposed to visualizers), and more.
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Jan 28, 2010
I'm developing a standslone system for my school project. I'm developing an audio management system which allow user to add audio files itself into database together with the audio information such as artist name and album year. I just started it few days ago and face some problems.. my song in the playlist wont continue to play after 1 finished and i need some idea on how to store the audio files into database ... in blob types may be?
Heres the screenshot and codes
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles bt_add.Click
[CODE]............................
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Jun 21, 2011
Is it possible to capture all/any audio played by a PC into a system.io.stream, so that it can then be run through speech recognition (System.Speech.Recognition.SpeechRecognitionEngine)?Essentially I'm looking to pefrom speech recognition on any audio on the client PC, google seems to suggest that capturing a stream like this can be done using Microsoft.DirectX.DirectSound, however I cannot honestly determine how.
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May 24, 2010
When I referenced speechlib directly there was a method GetAudioOutputs which would return all local audio outputs, which you could later use to select which output to speak to. I don't see that function in System.speech. How can I select which sound card to speak to with System.speech?
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Jan 14, 2010
I'm trying to make a mini map for a 2d space shooter of mine; I've for the math down (I think) for when an item should appear on the mini map, but the problem is the graphic. As it stands, the graphic spills over the edge of the mini map graphic and disappears only when it's fully outside. I need it to crop the image, or at least not show it off the mini map graphic.I thought of using the sourcerect rectangle of the spritebatch.draw, but it seems to me that would only work for the right and bottom section, as I can adjust the size of the rectangle. I haven't tried this yet, but I will soon. Can the location of the source rectangle be changed in relation to the graphic that it is a part of being drawn so that I can use that to crop the left and top sides?
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Jan 25, 2012
The user can select from either print or audio books and add to the shopping cart. The list box shows all items in the shopping cart. There is a 6%. sales tax on the total cost of the items in the shopping cart and a 2 dollars shipping charge per item in the shopping cart. to remove an item from the shopping cart, the user selects it in the list box and clicks the remove button. the subtotal, tax, shipping, an total fields should be adjusted accordingly.
To add one of the items in the list to the shopping cart, the user selects it and clicks the add book to cart button. to cancel the operation, the user clicks the cancel button. I am using a standard module to declare global variables. My file is attach I have the problem that everytime I add a new item, it will just add 2 and then I add another item and it add 2 it does not show the subtotal or the tax and shipping and the real total....
Module PriceCalcModule
'constants for Print
Public Const g_decDID_YOU_KNOW As Decimal = 11.95
Public Const g_decHISTORY_SCOTLAND As Decimal = 14.5
Public Const g_decLEARN_CALC As Decimal = 29.95
Public Const g_decFEEL_STRESS As Decimal = 18.5
[Code] .....
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Aug 18, 2009
I was trying to create a visualizer for IDictionary or ICollection Then like the simple visualizer (without dialog; I mean the ususal string visualizer that appears when hovering the variable, see image below), I want to make my custom text, I want to cast the collection to its type's list (I.E. StringCollection to List(Of String) or List) and then I will be able to see it in the visualizer. Or for Dictionaries show to lists visualizers for keys and for values.how to implement or even how to start?This is something I thought about:
using System.Collections.Specialized;
using System.Collections;
namespace ConsoleApplication2
{
[code]....
I want to use something similar for ICollection (or IList), IDictionary etc.Note that in arrays, the visualizer shows every nested objcet.This is actually what I want to achieve:Try to visualize a List and you will see that there is a private value _items, so you can see its items. I want to achieve something similar in collection and dictionary.
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Nov 28, 2011
I have an SQL Database which has some end dates. I have used this little statement to make sure that the dates come out of the database in the right format
Execute("Set dateformat dmy")
And I use the below statement to enter the data in to a datatable and, with the above command, when I go to look at the data in datatable visualiser the dates seem to be in the correct dd/MM/yyyy format
"SELECT CID, expdate FROM Traineecerts WHERE iscurrent = 1"
Now when i try d1 = row("expdate") the format changes to the american MM/dd/yyyy format
Please note d1 refers to a variable with the type of date. Even if I format the dates after using d1 = format(row("expdate"),"dd/MM/yyyy") they don't change unless I make d1 a string. Is this normal?
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Mar 13, 2009
I just want to ask or I need some idea on how to convert wav files to mp3 and compressed the file to make the size smaller. I've search on the internet and find vorbis.dll as a reference object and lame.exe for converter. With regards to the audio compression, i downloaded monkey's audio software but doesnt have an idea on how to incorporate it.
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Jun 11, 2009
Im trying to capture the audio played on my laptop. so i have searched the internet and found a source code for doing exactly that. the problem i have is that my audio device is not listed in the dropdown box (see picture) but it does when its run on windows xp (im running windows 7 x64) the goal of this application would be to capture my friends radio stream and save the individual played mp3's to a loction on my hard drive.(yes i have permission) i have included the source code so perhaps some 1 could have a look at it. (source code)[URL]
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Feb 26, 2007
make a VU meter for Audio to monitor audio input devices volume level such as microphone and etc?
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May 20, 2009
I have a database application developed around Access with VBA,I have used the Speech SDK and developed an application that in conjunction with MSCOMM 6.0 library calls into a remote IVR system.It sends in the credentials and queries information in response to that IVR's verbal requests. All seems successfull except for one problem;I'm using a shared SR engine and its using the system microphone as its audio input, this in turn gets the sound from the speakers which are routed to the telephone line through the modem. Of course this has a number of disadvantages - noise added to the sound from the environment and sound quality degredation as well as speaker volume dependency.
I would like the SR engine to take its audio input from the modem in paralell with the sound that goes to the speakers (so we can listen in to the call as well). This means that I must route the system audio output to the SR engine audio input. It seems that I must use an InProc SR instance - however in VBA that type is not recognized - since the shared SR uses the microphone as input by default. there is some statement to the effect that it is difficult in Microsoft's Help file. I'm unable to set the SR audio input to the modem output stream in VBA.As needed I can accomplish the C++ interface using an ActiveX object or a DLL to expose the missing API to VBA?
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Sep 23, 2009
how can i play the audio after the previous audio play is finish by using directx.
assume i have audio1.wav and audio2.wav.
i play audio1.wav by this code.
audio1 = audio.fromfile("D:audio1.wav", false)
how can i play audio2.wav after audio1.wav is finish? without use any button or signal. just depends on when the audio1.wav is finish, then audio2.wav will play automatically.
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May 10, 2011
For a visualizer, I want to establish a control made of two controls. The visualizer is a HEX display of a buffer. Id like to chose the up to 16 byte hex field with a small numeric up-down counter. My problem is that I am writing the visualizer and the visualizer is not allowing me to assign a tooltip to me.form1 or aything nearly approximating that. I'd like the "form" to look like a tooltip. Currently it does allow me to use a messagebox. I have discoved that visuliizers can call classes:
Dim
visualizerHost As
New
VisualizerDevelopmentHost(objectToVisualize,
GetType(Hex1))
Where Hex1 is a class but the class will not allow me to define a tooltip.
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Jul 19, 2009
For a visualizer, I want to establish a control made of two controls. The visualizer is a HEX display of a buffer. Id like to chose the up to 16 byte hex field with a small numeric up-down counter. My problem is that I am writing the visualizer and the visualizer is not allowing me to assign a tooltip to me.form1 or aything nearly approximating that.I'd like the "form" to look like a tooltip. Currently it does allow me to use a messagebox.I have discoved that visuliizers can call classes:
Dim
visualizerHost As
New
[code]......
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Apr 13, 2010
We have a great book written for Visual Basic 2005 that we type code that is prepared in advance. We are using Visual Basic Express 2008 and normally this works really great; type the code run the program and it works, however I am running into a snag.
The textbook shows the following code: IN THE(General) (Declarations)AREA we are told to type the following:
' Create a Graphic object to use with the game's bitmap
Dim myGraphicObject As Graphics = Me.CreateGraphics
' Create an empty Bitmap Object
[Code].....
is there a difference between VB 2005 and VB 2008 that would be causing the errors? or am I missing something subtle maybe mistyped?
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Jan 28, 2010
I would like to know how to use the graphic methods:
-DrawString
-DrawLine
-FillRectangle
I am meant to use these in a method called Drawgraph in order to draw a grid and bar chart. How can I go about this? What parameters do I need to send? What variables do I need to declare?
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Sep 23, 2009
I have just started to try learning how to use Visual Basic (im running the 2008 express free version). The example im trying to get working right now looks like follows[code]...
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Feb 18, 2010
I am programming a design surface where I add Image objects to the surface when an image is added it calls the draw objects command. It works fine I would like to figure out how to covert the object to an image to save it? Below is the draw sub used to draw objects onto the surface:
Public Sub DrawObjects(ByVal g As Graphics, ByVal Scale As Single)
Dim drawObj As GraphicObject
Dim i As Integer
[code]....
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Feb 17, 2011
I am working with a graphics program in VB to move an image around the Form. I'm trying to create barriers that cannot be crossed. At first, I tried to represent this with a 2D array, but this proved too complicated. For now, I'm trying to create a series of rectangles. What I want to happen is when the point the image is anchored at intercepts one of these rectangles, it will either be prevented from moving or sent back to where it was directly before the image moved. I know there is an intercept command, but I've been unable to figure out how to use it in this content. The code I have is below.
Public Class Form1
Dim PlayerSprite As Image
Dim BGImage As Image
[code]....
As I said, this is to create a graphic barrier. However, I expect to make a number of these Rectangles?
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Jul 23, 2011
i would like to be able to erase a graphic that was created.I would like to not have to redraw the graphics minus the graphic thats unwanted.Is there a way to delete a graphic?
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Apr 1, 2010
anyone have experience doing this? when i say imaginary i mean the square root of negative one. how would i graph this?
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Feb 24, 2009
I want to make a form to schedule the on and off time of equipment. & rows for seven days. 96 columns for 24 hours divided by 15 minutes. Each cell will be red for on and green for off. Click the cell to toggle the color. I know what I want it to look like. But I dont think using 500 buttons is a good idea. I am looking for better ideas on which direction to go. I am using visual studio express.
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Mar 2, 2010
I'm developing a scanning application in VB.NET 2005 using TWAIN. The scanner returns to me a handle to a DIB. I need to save this to a file, but I've been searching everywhere and can't find any information.
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Jun 1, 2011
how do I set up a timer to load a graphic from the web to a picturebox
heres a sample graphic
[URL]
its real small so it will load fast. the link will be different but this is good enough to test with
I need it to be on a timer event to load this graphic every .... seconds, that part of the code I can do, timer events are easy. getting this graphic into a picturebox is a pain though.
You Know Your Addicted To Computers When - Your main computer is a 7 terabyte, Core2Quad 3 Ghz +, with 4 or more gigs ram, over 200 programs installed, and you would rather sit with it programming than go to the movies!
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Sep 24, 2010
I have a converted VB6 App that would draw irregular shapes on a PictureBox when I click on a button, and these irregular shapes would persist until I either close the App or erased the PictureBox to start the display anew.I converted my App to VB.Net to do the same, i.e. draw on a PictureBox again, but the drawn lines appear briefly and then, at the end of the drawing process, when my App returns control to the Operating System in wait for another event, the graphics disappear as if erased by the App (which I don't do of course).I have created a Graphics Object associated to my Picture Box as:
Dim CurrGraphics as System.Drawing.Graphics
CurrGraphics = PictureOut.CreateGraphics
I then use the DrawPolygon and DrawLine methods to add the irregular shapes I want:
CurrGraphics.DrawPolygon(CurrPen, Pts)
CurrGraphics.DrawLine(CurrPen, Pts(I).X, Pts(I).Y, Pts(I+1).X, Pts(I+1).Y)
where CurrPen is a defined Pen, and Pts is the Points() array with the coordinates of the displayed shape. Several dozens irregular shapes are drawn and then the subroutine stops, and returns to waiting for another request from the user.What could be the prime reason why graphics do not persist in a PictureBox, and are erased immediately after they are created ?
PS: I do not use the PainEvent of the PictureBox PictureOut, as in the example given in the VB documentation (below), as the display process is initiated by clicking on a button, and I cannot relate how to transfer control to the PaintEvent as below:
Private Sub Form1_Paint(sender As Object, pe As PaintEventArgs) Handles _
MyBase.Paint
' Declares the Graphics object and sets it to the Graphics object
[code]....
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Mar 12, 2012
I have a module that generates fill out a System.Drawing.Graphics object. I then try to print it with a event on my main form but the print preview comes out blank. This is my print page
[Code]...
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Mar 2, 2010
I'm developing a scanning application in VB.NET 2005 using TWAIN. The scanner returns to me a handle to a DIB. I need to save this to a file, but I've been searching everywhere and can't find any information.
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Jun 2, 2011
i have this code which draws a continuous circle using a timer. Now I have to display it in the form which has a group box with loads of other fields and information. Now can anyone please tell me how can i add the circle into the group box as it can be displayed.Currently the circle is being displayed behind the group box which is not visible.
Private Sub Timer1_Tick(ByVal sender As Object, ByVal e As EventArgs) Handles Timer1.Tick
Me.sweepAngle += 1
If Me.sweepAngle = 360 Then
[code]....
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Oct 28, 2011
Ok. So I have a program I have made to calculate angles. i have a line for true vertical and I need the program to draw the line at a given angle. Basically, if I put 82 in textbox1, I want the program to calculate the cordinates where that line sits on the X axis, The y axis is always picturebox1.height, So the y axis isn't important here, just the x axis.
What would I do to calculate this angle into a visual graphic?
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