VS 2010 Sound Card DLL For VB?
Jun 15, 2011
I would like to be able to measure the frequency of a sine wave applied to the input of a "standard" Windows sound card system.I need to do this in near real-time (not by analyzing a wav file after the event) and I need to continuously measure every half-cycle of audio and store the results in some kind of buffer that I can read into a VB app. I have tried googling for this and it seems to be a very popular question but I have not found any really good answers. Does anyone know of a DLL that could do this? I wouldn't mind paying a reasonable sum for a commercial DLL if there is such a thing.
Another related requirement is to generate sine-waves - again this must be done in near real-time and it must be possible to change each half-cylce of the waveform. For example,I might need to generate a few half-cycles of 1500 Hz to be followed (with no break in the waveform) by half-a-cycle of 2300 Hz.
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Jun 27, 2011
i have windows app i want to disable the sound card and enable the sound card by using command button
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May 14, 2012
I was wondering what sorta code you would you to check if audio is going though a sound card?I am designing a media player and I would like to show that audio is playing.
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May 9, 2012
Is it possible to capture the raw signal from a WiFi card in the same way you can capture the signal from a sound card? (I already found code for working with a sound card and for drawing spectrograms) I'm wondering because it would make a cool radio-type project. I'd prefer a solution that integerates well with .net (VB or C#).My basic goal is to capture the ambient radio waves and build a primative "telescope" of sorts. Using the built in computer hardware is just the easiest way to accomplish this. If you have any other suggestions about how to accomplish this goal in a different way please post it as an answer also.
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Apr 15, 2010
I 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.
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May 27, 2011
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.
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Dec 18, 2011
how to record sound from sound card ?
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Feb 19, 2007
i am doing a final project in vb.net.i need to know how can i take and receive data from a sound card.
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Aug 12, 2009
I'm currently trying to get around developing an application that will alert me when process X is using my sound card.
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Sep 8, 2009
I need a way of recording any sound that is played through the computer so say if the user was open up windows media player and play a song then he could click record on my application and it would capture whatever is being played. After that there would also need to be a save button so the can click save and the user can save the file as a .wav or .mp3 or whatever!
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Nov 17, 2011
how to capture audio output with directsound? i'd want to be able to save it as .wav, .mp3, or .wma file format.
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Sep 6, 2009
how to check if
- A specific sound card is in use;
- A specific process is using any sound card;
- A sound card's current volume output
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Oct 5, 2009
How can I find the mixer handle for a specific sound card?I'm trying to build an application that will control the sound mixer of a specific sound card but I'm completely stuck in the getting the handle part.
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Aug 24, 2011
I'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.
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Jul 21, 2011
I'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.
[Code]...
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Nov 23, 2009
I want to create an application that can detect usb card reader device and when i swipe the card it should read.The below code WORKS PERFECTLY IN VB.But when i converted it to vb.net it is showing some problem.Below is the code for that.
[Code]...
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Dec 23, 2009
i want to read data from smart card using card reader.i need vb.net code help as well as total process that mean what dll/exe will be needed and how can i determine that the card is inserted or ejected from card reader?
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Dec 21, 2011
I have a program that I wrote in vb 2010 that keeps track of employee times in a database. It figures hours worked based on a range of dates selected using two DateTimePickers.I have it successfully working at this point to figure hours worked per day in the range for it's current practical use. But I was wanting to extend it so that it would handle over night shifts properly in case they did ever occur.Right now my code looks like this and it works for my current application:
vb
Public Sub ConvertTimesTableToHoursTable(ByVal timesTable As DataTable, ByVal hoursTable As DataTable)
[code].....
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Jun 20, 2011
I 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.
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Apr 19, 2009
I 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.
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Aug 14, 2009
im 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
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Nov 6, 2011
I need my program to 'listen in' for a specific sound.
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Jun 3, 2011
I have the following code. I would like to perform a if then check via a button click before the user processes the information.
Private Sub TestBTN_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TestBTN.Click
If TBSearch.Text = "" & ".exe" Or TBSearch.Text = "" & "" Or TBSearch.Text =
[Code].....
I would like it to just check to see if the text box info has been entered in one of three formats.
1)blah.blah
2)blah*.blah
3)blah*.*
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Jul 21, 2011
I'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.
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Nov 4, 2011
VB 2010 Replay, Log and Adding Sound
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Aug 12, 2010
How do i call upon a pre defined system sound (ie; Beep) through VB. I've seen it done before, although i can't remember the command..
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Feb 24, 2011
I am trying to create a sub that plays a sound sweep from the provided values.The code im using works but it sounds horrbile, hacky crap.... I could go on.
Sub PlaySweep(ByVal min As Integer, ByVal max As Integer, ByVal Duration As Integer)
Dim playtime As Long = Duration / (max - min) 'The Play Time for each frequncy
For i = min To max
[code].....
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Nov 14, 2011
So I had this idea to make a virtual drum set and my school book doesn't have the answer for me and I haven't been able to successfully google this. The only things I need to know is how to add a sound to a picture box that will activate when clicked and how to assign a key on the keyboard to activate the sound as well.
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Apr 23, 2012
So im trying to figure out how i can change sound playback from head phones to speakers and from speakers back to headphones with 2 buttons, if u didnt get me: [Speaker button]<-- click=sound playback from speakers [Headphone button]<-- click=sound playback from headphones.
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Aug 21, 2011
I have a program which have to play a sound at a specific time in each day.Currently I made a timer with 450 interval and I put a code in it which check if datetime.now = mytime then it will play the sound.(the program runs in background)
It is working but the problem is that sometimes it doesn't play the sound. I think I didn't used a proper way to this.I have even tried checking datetime.now.hour & .minute & .second with mytime to make sure it does play it at the right time But I don't know why the timer sometimes miss it and the play sound won't be run.
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