簡単な答えは次のとおりです。
soundArray = [[NSArray alloc] initWithObjects:
[[[SoundEffect alloc] initWithContentsOfFile: @"/System/Library/Audio/UISounds/dtmf-0.caf"] autorelease],
[[[SoundEffect alloc] initWithContentsOfFile: @"/System/Library/Audio/UISounds/dtmf-1.caf"] autorelease],
[[[SoundEffect alloc] initWithContentsOfFile: @"/System/Library/Audio/UISounds/dtmf-2.caf"] autorelease],
[[[SoundEffect alloc] initWithContentsOfFile: @"/System/Library/Audio/UISounds/dtmf-3.caf"] autorelease],
[[[SoundEffect alloc] initWithContentsOfFile: @"/System/Library/Audio/UISounds/dtmf-4.caf"] autorelease],
[[[SoundEffect alloc] initWithContentsOfFile: @"/System/Library/Audio/UISounds/dtmf-5.caf"] autorelease],
[[[SoundEffect alloc] initWithContentsOfFile: @"/System/Library/Audio/UISounds/dtmf-6.caf"] autorelease],
[[[SoundEffect alloc] initWithContentsOfFile: @"/System/Library/Audio/UISounds/dtmf-7.caf"] autorelease],
[[[SoundEffect alloc] initWithContentsOfFile: @"/System/Library/Audio/UISounds/dtmf-8.caf"] autorelease],
[[[SoundEffect alloc] initWithContentsOfFile: @"/System/Library/Audio/UISounds/dtmf-9.caf"] autorelease],
[[[SoundEffect alloc] initWithContentsOfFile: @"/System/Library/Audio/UISounds/dtmf-0.caf"] autorelease],
[[[SoundEffect alloc] initWithContentsOfFile: @"/System/Library/Audio/UISounds/dtmf-pound.caf"] autorelease],
[[[SoundEffect alloc] initWithContentsOfFile: @"/System/Library/Audio/UISounds/dtmf-star.caf"] autorelease],
nil];
そこにあります。標準的な電話機のキーパッドのすべてのサウンドを、すぐに楽しむことができます。