High frequency sound generator?

[Jimbly2]

Hi - I am developing an app which has a function a bit like the ultra sonic sound anti mosquito app - can anyone give me a steer as how to best accomplish this? I'm developing with JQ mobile and Xcode..

Thanks in hope!

cheers
Jim

[Bobarino]

Get the sound and make a button that triggers it. Was that what you were asking, or do you want code or something? Code wise, all you will need is too make an IBAction for when the button is pressed and use this code in it

 NSString *path = [[NSBundle mainBundle] pathForResource:@"Whatever sound is called" ofType:@"mp3 or whatever it is"];
        theAudio = [[AVAudioPlayer alloc] initWithContentsOfURL:[NSURL fileURLWithPath: path] error:NULL];
        theAudio.delegate = self;
        [theAudio play];

Thats pretty much all the code you'll need...

[Jimbly2]

Originally Posted by Bobarino

Get the sound and make a button that triggers it. Was that what you were asking, or do you want code or something? Code wise, all you will need is too make an IBAction for when the button is pressed and use this code in it

 NSString *path = [[NSBundle mainBundle] pathForResource:@"Whatever sound is called" ofType:@"mp3 or whatever it is"];
        theAudio = [[AVAudioPlayer alloc] initWithContentsOfURL:[NSURL fileURLWithPath: path] error:NULL];
        theAudio.delegate = self;
        [theAudio play];

Thats pretty much all the code you'll need...

Hi Bobarino,

.. thanks for that - much appreciated, I was guessing that the ultra high frequency would be generated by some sort of tone generator - I hadn't thought of it as being a sound file but that makes more sense.

Now to find the sounds... :-)

Thanks again, and a happy new year to you and yours,
Jim

[Duncan C]

Originally Posted by Jimbly2

Hi Bobarino,

.. thanks for that - much appreciated, I was guessing that the ultra high frequency would be generated by some sort of tone generator - I hadn't thought of it as being a sound file but that makes more sense.

Now to find the sounds... :-)

Thanks again, and a happy new year to you and yours,
Jim

I did a search on "iOS tone generator", and the first link was a project that shows how to create a tone generator using AudioUnits:

Cocoa with Love: An iOS tone generator (an introduction to AudioUnits)

[Jimbly2]

Originally Posted by Duncan C

I did a search on "iOS tone generator", and the first link was a project that shows how to create a tone generator using AudioUnits:

Cocoa with Love: An iOS tone generator (an introduction to AudioUnits)

Thanks for the heads up Duncan, I have downloaded the sample and will see if that's a better solution.

cheers,
Jim