Solved

How to Control sound card output using VB

Posted on 1998-09-16
4
250 Views
Last Modified: 2012-05-04
I need to be able to turn my sound card on or off depending on the time of day. I can do the time part of the project but I don't know how to control the operation of the soundcard from VB.??
0
Comment
Question by:rfb
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
4 Comments
 
LVL 1

Expert Comment

by:ryanic
ID: 1435330
If you are using the Sound Card to do playback MIDI and WAVE files only, thne you can use the API function "waveSetVolume" and "midiSetVolume" found in winmm.dll to set the volume to zero. THis should mute out the Sound Card.

I am still searching for a way to control the master volume myself.  Please update me if you found out anything. Thanks.
0
 
LVL 1

Expert Comment

by:ryanic
ID: 1435331
Sorry, but it should be "midiOutSetVolume" and "waveOutSetVolume".

You can also use "mmsystem.dll" for the API call. But the arguments seems to be slightly changes.

0
 
LVL 1

Author Comment

by:rfb
ID: 1435332
sorry...this is audio that is fed into the soundcard from another source. Precisely, I'm feeding a radio into the soundcard and broadcasting it on the Internet using a Real Audio Server. There are certain shows on the Radio that I do Not want to broadcast and I want to automate shutting the audio off and turning it on by writing a VB routine that looks at the time and day and makes the decision to allow the broadcast or not.
0
 

Accepted Solution

by:
stingray earned 100 total points
ID: 1435333
why not try out the control at:

http://www.barint.on.ca/~dcs/dcsMixer/dcsMixer.zip

it allows you to actually set the mute of the sound card or set the master volume.

0

Featured Post

Independent Software Vendors: We Want Your Opinion

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Have you ever wanted to restrict the users input in a textbox to numbers, and while doing that make sure that they can't 'cheat' by pasting in non-numeric text? Of course you can do that with code you write yourself but it's tedious and error-prone …
Most everyone who has done any programming in VB6 knows that you can do something in code like Debug.Print MyVar and that when the program runs from the IDE, the value of MyVar will be displayed in the Immediate Window. Less well known is Debug.Asse…
Show developers how to use a criteria form to limit the data that appears on an Access report. It is a common requirement that users can specify the criteria for a report at runtime. The easiest way to accomplish this is using a criteria form that a…
This lesson covers basic error handling code in Microsoft Excel using VBA. This is the first lesson in a 3-part series that uses code to loop through an Excel spreadsheet in VBA and then fix errors, taking advantage of error handling code. This l…

749 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question