First time here? First time here? Newsletter Signup Newsletter
Search tutorials
Author: Kenny Bellew | Website: http://www.cowfly.com

How to Control Volume for a Sound Object

For this example, changing the volume for a looping background sound will be described. Unless you will have only one sound object, or you want to keep all sound objects at the same volume, the looping sound object will need to be associated with a unique movie clip as outlined in the previous section. Here are the steps:

  1. Create an empty movie clip, drag it out onto the _root stage (or off stage), and give it an instance name such as "myLoopMc".
  2. Import the sound file into the movie's library and set its linkage properties identifier to an appropriate name such as "myLoop01" (see Fig. 02).
  3. Define the sound object on frame one of a layer, for example, called "Sound Objects" using an instance name such as "myLoop", and use the setVolume method to establish the volume level. A variable, "myLoopVolume" will be used to set the volume, so that it can be manipulated later.

The resulting sound object should appear as follows:

myLoop = new Sound(myLoopMc);

Volume for a sound object can be set between 0 and 100. In the above example, the volume is set to 50%. The setVolume can be placed in a variety of locations - on a button, in a function, on a frame within another movie clip on stage, etc. Just remember that if its placed any place besides the _root level (as that is where the sound object was initially defined), the path to where it was defined needs to be included as follows:


This method could be used to create a volume control knob or slider for your Flash audio interface. For example, if you wanted to include a volume slider, create a movie clip that can be dragged. Create a formula to have either its x or y axis values control the setVolume variable. As the axis increases or decreases, the volume percentage increases or decreases an equal amount. This is very simple for a horizontal slider.

» Level Intermediate

Added: 2004-10-12
Rating: 8 Votes: 31
» Author
Kenny Bellew is a technical writer and freelance flash programmer who specializes in Flash audio. He lives in Minneapolis, MN.
» Download
Download the files used in this tutorial.
» Forums
More help? Search our boards for quick answers!
Featured Flash FLA
» Author: Inocreato
» Title: RaiseTheBlocks
» Description: Raise all the blocks to win the game
Featured Sound Loops
Image for equalize

Audio Player

» Author: TomCat Carty
» Title: The Wood
» Description: Just a little game ending or it can maybe be looped. Recorders with music box and percussion to give the feel of well, I don't know, the woods? Free to use, just credit me. thank you
Latest Font
» Author: Fábio FAFERS
» Description: I created this font for free use. Everyone can apply it in personal or business texts. Its free, but I want to be communicated in case of business use. Donations are accepted to keep the project of free fonts alive! Thank you all
Featured Sound Fx
Image for equalize

Audio Player

» Author: Davisigner
» Description: Hmm... what to say about this one? It's reminiscent of the closing notes of the opening music from the Three Stooges done in a church organ style with a closing cymbal crash. I'll give this one away gratis, but feel free to check out my free loops and potential upcoming license-mandated ones over in the respective part of Flashkit.