iOS播放系统声音

1.声音格式是MP3或m4r的需要转成caf格式（可先转成aif , aiff，然后修改后缀）
2.路径在/System/Library/Audio/UISounds 里，需要更改的可以根据以下列表进行替换
3详细列表：
信息
ReceivedMessage.caf--收到信息，仅在短信界面打开时播放。
sms-received1.caf-------三全音
sms-received2.caf-------管钟琴
sms-received3.caf-------玻璃
sms-received4.caf-------圆号
sms-received5.caf-------铃声
sms-received6.caf-------电子乐
SentMessage.caf--------发送信息

邮件
mail-sent.caf----发送邮件
new-mail.caf-----收到新邮件

电话
dtmf-0.caf----------拨号面板0按键
dtmf-1.caf----------拨号面板1按键
dtmf-2.caf----------拨号面板2按键
dtmf-3.caf----------拨号面板3按键
dtmf-4.caf----------拨号面板4按键
dtmf-5.caf----------拨号面板5按键
dtmf-6.caf----------拨号面板6按键
dtmf-7.caf----------拨号面板7按键
dtmf-8.caf----------拨号面板8按键
dtmf-9.caf----------拨号面板9按键
dtmf-pound.caf---拨号面板＃按键
dtmf-star.caf------拨号面板*按键
Voicemail.caf-----新语音邮件

输入设备声音提示
Tock.caf-----------------------点击键盘
begin_record.caf-----------开始录音
begin_video_record.caf--开始录像
photoShutter.caf------------快门声
end_record.caf--------------结束录音
end_video_record.caf-----结束录像

其他
beep-beep.caf--充电、注销及连接电脑
lock.caf------------锁定手机
shake.caf---------“这个还没搞清楚”
unlock.caf--------滑动解锁
low_power.caf--低电量提示

语音控制
jbl_ambiguous.caf--找到多个匹配
jbl_begin.caf------等待用户的输入
jbl_cancel.caf-----取消
jbl_confirm.caf----执行
jbl_no_match.caf---没有找到匹配

日历
alarm.caf--日历提醒

iPod Touch 1G
sq_alarm.caf
sq_beep-beep.caf
sq_lock.caf
sq_tock.caf

未使用的系统声音
ussd.caf
short_double_high.caf
short_double_low.caf
short_low_high.caf
middle_9_short_double_low.caf
long_low_short_high.caf
RingerChanged.caf
SIMToolkitCallDropped.caf
SIMToolkitGeneralBeep.caf
SIMToolkitNegativeACK.caf
SIMToolkitPositiveACK.caf
SIMToolkitSMS.caf
ct-busy.caf
ct-call-waiting.caf
ct-congestion.caf
ct-error.caf
ct-keytone2.caf
ct-path-ack.caf
Tink.caf

调用方法一：

SystemSoundID myAlertSound;
NSURL *url = [NSURL URLWithString:@"/System/Library/Audio/UISounds/begin_video_record.caf"];
AudioServicesCreateSystemSoundID((__bridge CFURLRef)(url), &myAlertSound);
AudioServicesPlaySystemSound(myAlertSound);

调用方法二：

NSString *path = [[NSBundle bundleWithIdentifier:@"com.apple.UIKit"] pathForResource:@"Tock"ofType:@"aiff"];
if (path) {
SystemSoundID theSoundID;
OSStatus error =  AudioServicesCreateSystemSoundID((__bridge CFURLRef)[NSURLfileURLWithPath:path], &theSoundID);
if (error == kAudioServicesNoError) {
AudioServicesPlaySystemSound(theSoundID);
}
else
{
NSLog(@"Failed to create sound ");
}
}

参考链接：
http://blog.csdn.net/piziliweiguang/article/details/9062031
http://bbs.feng.com/read-htm-tid-6262661.html