I have 2 apps and i want to controll their sound levels externally. Ex. 1 app is sound player and another one is GPS soft. I need to detect that GPS sends sound bits to audio card and at that moment reduce the sound level of audio player application. I would assume that could be done through winAPI but im not 100% sure.
View 4 RepliesI need to get the decibel level of sound being sent to the sound card (not the actual sound level the speakers are instructed to emit via volume level)There is next to no information i can find on the net to even access sound data. Could anyone point me in a direction for this? The OS will be vista/7.
View 2 RepliesI have a external hardware that has a miniplug output that i connected to my pc microphone input. That output has two posible states, white noise or no sound at all.What im trying to do is an application that would fire an event every time there is a change from one state to the other.
View 1 RepliesI was just thinking if there is any component which monitors sound output. My intention is to recognize a particular sound coming out from my soundcard. I know its an issue about the driver of my sound card but is there a way I can get atleast noise level coming out of my speakers and maybe draw a graph and detect the peak at when the sound is played?
View 7 RepliesI have a form with a panel on it (among other controls). I am trying to load picture boxes into the panel (in an attempt to make a star grid). Using the code below, I get a "Top-level control cannot be added to a control." error on the "Parent = Me.Panel7" line.
Searching for this error, I came across a solution to change the TopLevelControl property of the panel to FALSE....but I then get an error "TopLevelControl is read only".
Public Class frmMain
Private Sub frmMain_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
LoadPictureBoxes()
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i a m using VB.NEt 2003, wat i did is , i tried to bring A FORM into a GroupBox Control by using handling method.Im using in VB 6 i got the expected output.but in .NET i m getting an error msg "cannot add a top level control to a control ". when i degug it comes from the line DirectCast(frmObject, Form).Parent = Me.gropboxso u please reply me ..
View 2 RepliesI need to record all the sound that is made from a flash swf in vb.net. I don't mind how I do it but I don't want to record all the sound from the whole computer through the sound card I only want the sound from my program. Doing it through a webbrowser control with the swf embedded in a html page is fine or just recording all the sound from my form.
View 3 RepliesI have to handle concurrency control and I used SqlClient.SqlTransaction with IsolationLevel.Serializable level. In that transaction, I do 3 works:
1. Select the latest updated time from a record of a table
2. Compare the latest updated time with a stored time paramater
3. If the result form comparision is "same" I will update that record
But my problem is, when 2 transactions is run at almost the same time.
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how do i control the volume level that the speakers output?
View 4 RepliesI was just wondering if anyone knows of any free Open Source software wich demonstrates multitrack recording support? I was thinking of something in the lines of this: [URL] I want to include multitrack support in my own software, for personal use and I don't even know where to start to be able to do that. So preferrably a control or something would have been great. I could also be able to pay for something like this, as long as I'd be able to include it in my own VB.NET solution. Edit: What's with the vote down? I was just wondering if there are any components I can buy and download to use in my own project..
View 1 RepliesI am trying to find the current level of zoom in a webbrowser control. I know how to zoom but the same doesn't work for retrieving the current level of zoom. I am trying the following: VB.NET Syntax (Toggle Plain Text )
View 1 RepliesWhat node property tells you if the node in question in a TreeView is the Root Node (i.e. highest parent level)? I want to be able to test a node (True/False) in a node event procedure.
View 2 RepliesI am creating an Excel add-in written in VB.NET. I would like to bind KeyDown and KeyUp events to the spreadsheet to record when the user presses and releases the arrow keys while navigating the spreadsheetIdeally, these events would be built into Excel alongside the native SheetActivate and SheetSelectionChange events, for example. Alas, they are not.
View 1 RepliesI have a question about of capture sound function, someone have a code example for visual basic 2010 in windows 7?, I tried using mcisendstring function but the sound quality, is poor.
View 5 RepliesI have background sound loop with the My.Computer.Audio and it works fine. I want to play another sound (like a beep) when desired without stopping the background sound. Several examples I have found don't seem to work. I am in VB.NET 2008 Professional.
View 8 RepliesI'm ready to start adding sound to a 3D game and I'm looking for a decent Free library.it would not require DX and be something like:
dim MySound as SoundLib.Sound
MySound = SoundLib.LoadSound("soundfile.wav")
SoundLib.Play3DWorld(Location.X, Location.Y, Location.Z, VolumeModifier, MySound)so far all Im finding is expensive, C#, old, or not .NET compatible.
Public Class b
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
[code]....
while compiling it i got error like "top level controls can not be added to control"what to do?
I have searched the web for code relating to changing the system volume, muting the system volume, and outputing the current level of the volume as an integer, using VB.NET.
All the code that I have found either doesn't work, or is very long.
If I have a winform, may I know how can I control the zoom level of the font in theapplication (as well as the application window itself obviously) by using Ctrl + Mouse Scroll Wheel? I see there is a Delta in the Scroll Wheel event, but not sure how that works.Is there any code sample that I can look into?
View 2 RepliesIn Visual Basic 2008, there's two different ways that I know of to accomplish the same thing:The Dim on the member level:
Dim counter1 as integer = 0
Dim counter2 as integer = 180
Public Sub SampleSub1()
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i am trying to develop a program which will:to beging with, allow a user to use the left and right arrow keys to control the panning of a particular sound on loop. the actual panning dosent have to be programmed i could just instruct the program to play out the corresponding pre recorded panned sound?once achieved i hope to then develop the program to test a users ability to pan one sound to match a stationary sound at a given angle. i will need to record the time taken to achieve this, the number of key presses made and how accurate their answer was.i am using visual studio 2005 to build my program?
View 1 Repliesim making a techno progam in visual basic 2008 and after 3 hour im think how to save the sound they make and catshing a sound recorder but what the code im try to find on internet but find 0 pleas give me the code im try to find
View 1 RepliesI'm creating an application that will have 3 streams of audio. I can get 2 streams playing easy enough using DirectX AudioVideoPlayback and setting the balance for each Audio Instance. However, I need a 3rd Audio instance to play out of another output such as the Rear or Centre. An alternative would be to be able to select a different sound device in the machine to play the 3rd audio stream.
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I have created a simple program which uses a two tier structure of SQL Tables.At the top level, one record holds the date of the activities and linked to it using its primary key as a foreign key, three subordinate tables hold time stamped records.The issue I have been unable to solve is that before adding any of the lower level records for a given date, a newly added top level record must be saved to the database.Doing this manually is simple - but can I rely on my users to remember to do this before they start plugging in the lower level data?I thought not, so I am looking to save the top level automatically.I've failed miserably but I refuse to believe that it's not possible.
View 14 RepliesI'm creating an application that will have 3 streams of audio.I can get 2 streams playing easy enough using DirectX AudioVideoPlayback and setting the balance for each Audio Instance.However, I need a 3rd Audio instance to play out of another output such as the Rear or Centre.An alternative would be to be able to select a different sound device in the machine to play the 3rd audio stream.I've been searching the net for 2 days now trying to find a solution, but have so far been unsuccessful. I've tried a few alternative libs such as DirectShow.Net, DirectSound, BASS.Net, QuickTime and OpenTK.Some of them do what I need to do, but they are either too difficult to use and therefore impractical or they are missing some other essential features such as Events which are required to make the rest of the application work. Would anyone oppose to me posting this same thread on other forums?I will of course post a solution if one is found elsewhere without advertising external websites.
View 4 RepliesI have multiple level of For Each and in each level, i have a Linq that is the 'In' criteria as in:
[Code]....
It will go inside each for (because the value is not nothing), however, it will only loop (next) in the very inner 'For Each t In tFor'. After it is finish inner loops, the outer Fors' or Next will not execute... even thought there are more than one values in that 'In'... like 'sFor' or 'fFor'. i've noticed while debuging, while break at the for (for example 'sFor', before stepping in), i get the error message:
"Enumeration yielded no results" when i expand the result for that variable and it will not step into it. but if i do not expand the result, it will step in. It seem that some how, once an element is accessed for that 'In' collection, it breaks (meaning does not loop for the rest of the elements) the next for that collection is this a bug or am i missing something in Linq? BTW: i believe it has something to do with the SqlDataReader in the Linq. I'm working with IAsyncResult.
I am trying to build a small program which will allow some one to click on the exit button and the sound will play and at the end of the sound the program will then close. The sound clip is about 3 seconds long Here is what I have:
Imports Microsoft.DirectX
Imports Microsoft.DirectX.DirectSound
Public Class Form1
Private Dsound As CSoundDevice
[code]....
Is there a way to generate a pure tone (e.g. 440 Hz) for a specified period of time through the sound card without using having to find or make a separate .wav file for each tone.I tried using the "Beep" function, but while it produces the tone for a specified period, it sounds broken up into a (probably 500ms) time frame which repeats with an audible space between the repetitions.
View 2 Replieshow to record sound from sound card ?
View 1 Repliesi have windows app i want to disable the sound card and enable the sound card by using command button
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