Playing Voice Over Modem From A Windows Service?
Jun 18, 2010
I'm developing a VB.NET Windows service which is costantly checking a BMS database for new alarms and making phone calls to warn operators remotely. I'm currently using a .NET TAPI wrapper and the SAPI 5.3 interop assembly, and the steps I'm taking to speak over the phone are:
Initialize TAPI interface;Make the call to the operator's number;Take the voice modem waveOut device id Set the voice output to that device id; Let SAPI do the magic. This is all working fine if I compile the code as a Windows console or forms application, but as soon as I compile and run it as a Windows Service, step 5 never occurs - voice modem calls but stays silent; everything else works, even digit monitoring.Now I know windows services are not supposed to interact with the desktop, so things like UI elements and playing sounds are a no-no, but I'm struggling to find an alternative which doesn't involve using the wave API and can be developed in a reasonable timeframe.
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Apr 22, 2009
I am creating a windows service that will do things behind the scenes without any GUI needed, thus the need for a Windows Service. The problem is though I would like to notify the user when certain events happen by playing a short audio clip. I know Windows Service's create a virtual Desktop, in which, Audio messages are not sent to the users Desktop.
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Oct 2, 2010
I need to develop a simple application. That is, with a click of a button, it will call a telephone number through a voice modem.I'm using MS Visual Basic 2010 Express Edition.I refer to this link : [URL]I tried it, by changing phone number and my COM port. I added System as reference too.Unfortunately, it's not doing any good.
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Jul 29, 2010
I have been working on a tapi program that will play a wav file over a tapi phone line. I am look for a GOOD quality voice modem. Any suggestions. The one I am working on is really poor for this project. Things I am looking for.....
[Code]...
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Jan 30, 2009
I spent some time with data modems till I realized it's a voice modem that I'm going to need in my application. I see that there are some other commands for a voice modem, although nothing very elaborate. I would imagine you make the call as you would in a data modem ATDT etc and it looks like there is really just one command to send audio...
AT+VTX
AT#VTX
Not sure what this is all about except maybe just different standards? Still not sure about how to detect when the call is answered though. I won't be talking to another modem. Maybe the serial port itself has a pin change or something? You would think there would be a bit "somewhere" that the modem would generate when it quits ringing. I may have build my own outboard box to do this. (easy enough -- probably more reliable too -- modems sure need rebooting a lot it seems).
Here is the goal though --Voice modem calls out, call is answered, and I inject my audio from the PC sound card for a minute or so and then tell the modem to hangup.
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Feb 11, 2010
I want to have an application, that records voice, saves and play it. I have a 3 buttons
btnrecord
btnsave
btnplay
What I did is
Process.Start("SoundRecorder.exe")
How can I make the sound recorder.exe start recording. It only opens the application.
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Jul 14, 2011
i have a Windows service that is hosting a WCF service through net.tcp and this is working great. I have also created a WCF service application. I am trying to add the net.tcp service reference to the service application. Then I add it to the GAC that goes ok but if I try to RegAsm the WCF service application to allow it to be called from Server.CreateObject I get the error:
Warning: Type library exporter encountered a type that derives from a
generic class and is not marked as
[ClassInterface(ClassInterfaceType.None)]. Class interfaces cannot be
exposed for such types. Consider marking the type with
[ClassInterface(ClassInterfaceType.None)] and exposing an explicit
interface as the default interface to COM using the
ComDefaultInterface attribute.
It does not work. I have tried to call it through a class library but this does not work either as the end point is not set correctly.
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Oct 12, 2011
I am attempting to call a remote modem using a local modem connected via USB. Programming language is VB.NET and I am using the SerialPort control to talk to the modem.
Communication is as follows:
I send: ATZ0[CR]
Modem responds: ATZ0[CR][CR][LF]OK[CR][LF]
I then try to dial a number:
I send: ATDTnnnnnnnnnn[CR] where nnnnnnnnnn is a valid number
The modem responds with:ATDTnnnnnnnnnn[CR][CR][LF]ERROR[CR][LF]
All other commands seem to work without any issues
For info the modem is a MultiTech MT5634ZBA-USB-V92
If I use hyperterminal and type the same commands in it works as expected and dials the number, so it must be something I am doing in my code, possible some setup in the SerialPort control
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Mar 25, 2009
I have a voice program that can compare voices to stored voice files and identify people based on that. It's not the most accurate thing, since being sick or other weird things can make it fail, but it does work for the most part. I was wondering if there was a way to keep the voice recognition running during an unlock and wait for the person who locked it to come back. Upon giving the command and voice verification, if it passes, the computer is unlocked by my program. Is there anyway to do this in VB.NET?Summary: Can a program unlock a computer after it's locked?
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Feb 25, 2010
How would i broadcast/specific(one person) a live voice over a tcp connection for my voice chat room im making.
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Jul 23, 2009
I am trying to communicate with a Windows service on a remote machine on the network but i keep getting an exception saying the following: "System.InvalidOperationException: Cannot open Service Control Manager on computer 'machine001'. This operation might require other priviledges. ---> System.ComponentModel.Win32Exception: Access is denied.
[Code]...
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Sep 18, 2009
Is it possible to have a dotnet windows service which monitor other services and upon stop of any service, the monitoring service would be able to start the stopped service.
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Jul 7, 2009
In the past I had the indexing service installed on a Windows Server 2003 and used it to index files for my website. I did this by executing an OleDbCommand with a query and a connection string.How do I accomplish the same thing with the new "Windows Search Service" (Windows Server 2008) by using VB.NET? Does this work the same way so that I only need to change the Provider name which has been "MSIDXS.1" up to now? Case true, what is the new Provider name?
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May 3, 2011
When you create a Windows Service, you create a list of the services you want to start. The default is this:
ServicesToRun = New System.ServiceProcess.ServiceBase() {New Service}
Can you have multiple instances of the same Service class (that bind to different addresses or ports), like this?
ServicesToRun = New System.ServiceProcess.ServiceBase() {New Service("Option1"), New Service("Option2")}
Or will that cause problems? Should we use two different classes instead?
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Mar 11, 2010
The goal -- use VB.Net to write a windows forms application that responds to a limited set of voice commands after the user says a keyword, (such as "Wake Up"). I have the following code I am using from another site but I am getting an error I do not understand (nor do several others who posted comments at the same site.)
Imports System
Imports System.Data
Imports System.Deployment
[Code].....
If I had any understanding of how to create a grammer file I MIGHT be able to avoid this error completely, since I am only interested in a few voice commands (maybe 30), not the whole 60,000 word dictionary.
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Oct 27, 2009
(from scratch as I've not done this before) how I can stream live through modem-to-modem connection. The modem here refers to dial-up modem (PSTN modem), there is no internet/lan involved.It will be 2 programs, the first is to transmit real-time video from webcam, and the second is to remote video from the first.
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Sep 11, 2009
I want to have a applacation then wehen somthing happens (like, uhh a error message but without the message box.) what would be the code that plays the windows alert sounds, and one that applies to the current sound scheme i have running.
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Dec 3, 2009
my program is designed to run on windows7. the mixer in the taskbar lets you control volumes per application. is their a way to determin if a specific application is playing a sound? if not, how would i go about checking to see if the system is currently outputting anysound.
my app is currently setup to use a speech to text and text to speech. basicly i want it to be able to wait for the text to speach software to stop talking before my app plays internal sounds (using the My.Computer.Audio.Play)
i don't have any code to provide as i have no idea where to start.
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Mar 3, 2009
We have a server with multiple services written in .Net 1.1 and 3.5 running on a Win 2003 server. Everything runs fine, but when we stop a certain service, an unrelated service stops. I have checked and neither has any dependencies. The service we stop is in 3.5, and the unrelated service that incorrectly stops is in 1.1. We get no error messages, nor event log errors, so we are baffled.Does anyone have an idea as to what may be causing this?
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Nov 17, 2011
I am using this method to install windows service
processInstaller = New ServiceProcessInstaller()
serviceInstaller1 = New ServiceInstaller()
serviceInstaller2 = New ServiceInstaller()[code].....
How can I get the account name after whenever the service is started ?
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Aug 17, 2010
I'm looking to see if anyone has a good reference for a third-party add-in that will allow me to play .mp4 video files inside my program without a need to embed a web browser in my program.
I have no problem buying it (well that depends on the cost of course!), but I want that when I distribute it, I include their .dll files and it'll work on the user's computer without anything else needed.
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Apr 20, 2012
Been doing VB2010 for about a year now, have recently started to push the boundary's for what kind of media I can incorporate into my forms. I haven't been able to play .wav or .mp3 files though. I have tried to follow tutorials on microsoft and other coding websites without success.
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Apr 13, 2011
VB.NET Visual Studios 2010 or 2008 only!I have searched like crazy and can't find how to get the wmp current playing song Title, Artist and Album names.
I would like to later bring this to Post to Facebook and Twitter ONLY when that button is clicked.
I have already tried things like this: (From the internet)
Dim zArtist As String = AxWindowsMediaPlayer1.Ctlcontrols.currentItem.getItemInfo("Artist")
Dim zTrackTitle As String = AxWindowsMediaPlayer1.Ctlcontrols.currentItem.getItemInfo("Title")
Dim zAlbum As String = AxWindowsMediaPlayer1.Ctlcontrols.currentItem.getItemInfo("Album")
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Aug 25, 2010
I have been trying to tweak the form and all of a sudden it doesn't show anymore. I have tried reversing all the settings back to original but nothing. Then I have tried:
[Code]...
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Oct 2, 2011
I'd like to write a simple Windows form that will make it easy to record a voice message before uploading it to a remote web server and sending the URL to the recipient(s):
[URL]
Currently, the user has to use Sound Record to record the message, use an FTP client to upload it to a web server, and finally, use an e-mail client to send the URL. I'd like to combine those three features into one.
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Jun 25, 2009
I am using a windows service and tried to copy some file as below,System.IO.File.Copy("Z:abc.txt", "C:helloworld.txt")Note: Z: is a map drive from another host in 1 LAN (same LAN)I got error, "Could not find a part of the path 'Z:abc.txt'."But when I tried it at a simple application using windows application, it works with the same code as above.
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Jul 14, 2005
Tried to write my first Windoes Service yesterday with a certain degree of success but I couldnt install it.Upon running teh Install programme in the command line I was presented with a 'Set Service Login' window with a User ID, Password and Confirm Password text box.I attempted to use my windows login credentials but the install failed and was rolled back.Im using a computer on a company network with Win2k?
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Mar 10, 2009
I've created a windows service and started a deployment project for it. I have the project installer class in the service project and I've added the "Standard output etc.." from the service project as custom actions for the Deployment Project. When I attempt to install it, I get the error "Specified service already exists", which shouldn't happen (even though the service does exist) because the installer should be removing the old service and installing the new one.
I've checked that the versions are different, and that the Product Code is also different, also RemovePreviousVersions is set to true. Can anyone tell me why it isn't uninstalling my old service when I update then install again? .S: MODS: DO NOT MARK MY POST AS ANSWERED, IT IS RUDE, YOU HAVE NO IDEA IF YOU'VE ANSWERED MY QUESTION!Sorry, it gets ignored in my signature.Mods
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Mar 12, 2010
I have a .net Windows Service developed in VB.net. I have a settings file in the root directory called Connections.XML and I am setting the basedirectory [code]...
When I schedule the service this is working absolutely fine in my Windows XP machine. But when I installed the same service in our development server (Windows 2003 64 bit Server) for some reason it is not able to locate this file.
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May 3, 2012
It is possible to create windows service using windows form control in vb.net. give me the url or links. The windows forms control such as, Timer control, list-box, notify-icon control etc.
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