Sounding the Alert()

[Highfield]

In the EFS example Alert Once Per Bar their is a code line that play's a sound file using: Alert.playSound("train.wav");

Can anyone please tell me what the correct syntax is to play a sound file? The help file states that the syntax is :

Alert.playSound( sSoundFile )
sSoundFile: Path and file name of the WAV file to play.

I keep sound files in a folder located under Windows OS in C:\media. I've tried Alert.playSound("C:\media\bleep.wav") but that doesn't work. I'm sorry, I'm not a Javascript programmer so any help here would be appreciated.

[Highfield]

Would the correct path be "C:\\media\\bleep.wav" Are the two backslahes the correct syntax?

[ACM]

Highfield
Yes or you could also go in the EFS settings (Tools->EFS->Settings) and redirect the path to the folder of your choice after which you should be able to just use the Alert.playSound("yourfile.wav") syntax.
Alex

[Highfield]

Ok - that's sorted it out. One has to use a double forward slash in the path to specify the file location. (I'm now feeling very vertuous)

[Highfield]

Thank you Alexis - That is an even better solution.

[Highfield]

Does specifiying an interval with the utility function isIntraday() test specifically for the interval passed to it?

I would like to play a sound file that is different to a sound file played if the chart interval is 30 minutes. I'm affraid that I'm not very familiar with javascript but I have tried this code below:

if(isIntraday(30)){
Alert.playSound("ding.wav");
}
else{
Alert.playSound("dong.wav");
}

What happends is that it plays the dong.wav file and not the ding.wav file when in a 30 minute chart. Can someone help me with this please?

[ACM]

Highfield
I am not sure but I think isIntraday() does not use any parameters.
Irrespective you can use getInterval() to specify the interval at which you want the sound to be different.
Alex

if (getInterval()==30){ 
Alert.playSound("ding.wav");
}
else{
Alert.playSound("dong.wav");
} 

[Highfield]

Thank you Alexis. I read the EFS.chm help file and found this:

isIntraday( [interval] )
Interval: Optional. Interval to be checked.
Returns true if the script is currently processing intraday data (e.g., the script is loaded into an intraday chart).

On that basis, I presumed that the [optional interval] would compare the chart interval.

[Highfield]

Within an EFS script, is it possible to play two sound files, one after the other?

[eSignal_JasonK]

Hello Highfield,

You can only play one sound during a single iteration of your formula. If you have two Alert.playSound() calls back to back, for example, only the second one will be heard.