Playing Audio (Sound) Files
Browsers do not play audio files, but they do send them to whatever
software program normally plays music files on the computer.
Thus the results are not completely predictable.
The quality of the sound will vary with the client's software, sound card
and speakers. So will the presentation of the music player.
Audio files can be midi files, mp3 files or wav files.
Midi files are instructions to play certain sounds on a digital keyboard.
Mp3 and wav files are representations of actual sounds played by an instrument.
Consequently, midi files lack the subtlety which can be achieved with mp3 and wav files.
On the other hand, midi files are usually several hundred times smaller than mp3 or wav files.
There are two ways to place audio files in a web page.
- with an <a> (anchor) tag,
- with an <embed> tag.
Opening an Audio File with an Anchor Tag
Audio files, like any other file, can be opened with an anchor tag.
The file begins to play when the link is clicked.
J.S. Bach, Ariosova
- The href attribute is set equal to the name and address of the audio file.
- If you do not want the music file to open in the current window,
you can set the target to another window. This will bring up
the music window on top of the current window, since browsers assume that we like to look at what we click on.
- If you want to continue looking at the current window,
a statement such as onclick="window.focus()"
might keep the current window at the top.
J.S. Bach, Ariosova
Opening an Audio File with an Embed Tag
Use of the <embed> tag embeds a music player in the page.
This method of opening a music file
gives more options than the <a> tag.
A file opened with an embedded player will only play so long as
the particular page it is embedded in is open. This can be taken into consideration,
in deciding where to embed music players.
- The volume can be preset.
- The autostart attribute allows play to start when the page is loaded,
or at the user's option.
- The loop attribute allows for continuous play of the piece.
<embed src="/mus/brahmsLullaby.mid" id="tune"