[PSUBS-MAILIST] Matilda - you'll never dive alone

[Alan]

That's very good Jon,
I'll buy 2.
I want to be able to send people down in my next 1 person
sub, so warnings like that would have more meaning for them
should an incident occur.
Alan


Sent from my iPad

On 23/12/2013, at 12:51 PM, Jon Wallace <jonw at psubs.org> wrote:

> 
> Thought this might interest some of you.  With little effort I can incorporate some basic audible alarms into my environment monitoring project to notify me of off-scale sensor conditions.  At first I considered just sounding a buzzer and flashing a light next to the sensor that was off scale.  For just a few dollars more I can include mp3 playback of synthesized voice warnings for a particular off-scale operating condition, ie. low oxygen, high carbon dioxide. I edited together some aircraft warning sounds along with synthesized voice from an online text-to-speech convertor to create a small library of voice warnings I call "Matilda".  MP3 recordings attached.  It requires a bit more hardware but from a software perspective the program is only a few lines longer than implementing a basic piezo buzzer alarm.
> 
> Pre-dive checklist will include testing alarms to ensure they are working correctly and an override button will allow stopping the alarm during operations so you don't have to listen "Matilda" all the way to the surface.  I've decided to use the "buzz,buzz,buzz,buzz" sound for informational alarms and the "whoop,whoop" sound for emergency alarms.  Now if only I could find text-to-speech translator for Yosemite Sam or Foghorn Leghorn to make it really unique.
> 
> Jon
> <CO2_high.mp3>
> <max_depth.mp3>
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