Pause in Code for two audio files to run

May 4th, 2010, 02:23 PM

Hello,

I've got some indicators that sound alerts when signalled. I'd like to run two audio .wav files simaltaneously. The purpose would allow me to have alerts on two separate timeframes with a similar message but could have a separate file that picks up the chart period.

Code

1. alert with "5RangeChart.wav"
<pause>
2. alert with "ema_cross_long_entry".wav

Hope that's understood.

Appreciate your help.
kz

May 4th, 2010, 04:37 PM

Best thing is probably to make a new wav file for each conditional, so you can just use one PlaySound().

The problem is PlaySound() will execute simultaneously (as you probably figured out) so if you issue them back-to-back it's no good.

If you put in a C# delay, then literally the entire chart will halt, and especially for backtesting this is a huge no-no.

The other option would just to keep track of when you played the first sound, then play the second one later. You could use the Timer() code to do this if you are really wanting perfection, otherwise you could just check on each new tick and look at the Time stamp.

Mike

May 4th, 2010, 05:34 PM

Thanks, Mike, didn't think about the chart actually halting.

That would be NO GOOD!

thanks,
kz

May 4th, 2010, 09:56 PM

You could also build a sound file with a pause in it, then you still only issue a single playSound()

May 4th, 2010, 11:52 PM

Big Mike

If you put in a C# delay, then literally the entire chart will halt, and especially for backtesting this is a huge no-no.

You can have the sounds play in another thread, and only launch the threads on non-historical bars, right? Then the delay won't affect anything else ninja is trying to do.

May 5th, 2010, 04:08 AM

Richard

You can have the sounds play in another thread, and only launch the threads on non-historical bars, right? Then the delay won't affect anything else ninja is trying to do.

Using system timer is the best way, if perfection is needed, buy if the indicator can be run on cobc=false then just tracking the ticks/timestamp should be good enough and a lot simpler to implement for the average ninja programmer.

Mike

Pause in Code for two audio files to run

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Pause in Code for two audio files to run