Question

I’m trying to play a sound file from an iPhone program.

Here’s the code:

NSString *path = [[NSBundle mainBundle] pathForResource:@'play' ofType:@'caf']; NSFileHandle *bodyf = [NSFileHandle fileHandleForReadingAtPath:path]; NSData *body = [bodyf availableData]; NSLog( @'length of play.caf %d',[body length] ); NSURL *url = [NSURL fileURLWithPath:path isDirectory:NO]; NSLog( [url description] ); NSLog( @'%d', AudioServicesCreateSystemSoundID((CFURLRef)url, &soundID) ); 

The first NSLog is to check that I have access to the file (I did), the second NSLog is to show the file URL, and the third NSLog returns -1500 ‘An unspecified error has occurred.’

For the second NSLog, I get the following output:

file://localhost/Users/alan/Library/Application 敲慬楴敶瑓楲杮upport/iPhone蒠ꁻތĀ⾅獕牥⽳污湡䰯扩慲祲䄯灰楬慣楴湯匠灵潰瑲椯桐湯⁥楓畭慬潴⽲獕牥䄯灰楬慣楴湯⽳䙂㕅㡂㤱䌭䐳ⴸ䐴䙃㠭㍃ⴷ䍁㈶㠵䙁㤴㈰䰯捯瑡䵥⹥灡⽰汰祡挮晡imulator/User/Applications/BFE5B819-C3D8-4DCF-8C37-AC6258AF4902/LocateMe.app/play.caf

This is either due to my misunderstanding of the ‘description’ method, or this contributes to the problem.

Any idea what is going wrong?

Answer 1

An update on this.

I got my keys to allow me to run my app on the device.

I found that my .caf file successfully played when the app ran on the device.

I then tried various alternatives.

A .wav file that is 60 seconds long failed to work on the simulator and the device.

A .wav file that is 5 seconds long would work on the simulator, but not on the device.

A .aiff file that is 5 seconds long works on the simulator and the device.

It would be good to know definitively what the simulator and the device are checking about the file when it is passed to AudioServicesCreateSystemSoundID