How change default alert in Calendar?

Hi,

here is a solution that is working for me in 10.9.5 (thanks to Wakko from http://iszene.com/thread-165772-post-1927711.html#pid1927711)

1. (Make TimeMachine backup)
2. Quit calendars
3. Go to ~/Library/Calendars. Here, for each calendar there is a folder with its UUID (i. e. 9C36543C-8BA1-4264-8E3F-C1BB9FB207BE.calendar). To find out what calendar it is referring to open info.plist within it. Chose the calendar's folder you want to change the alarm sound for. It should also be containging the folder /LocalDefaultAlarms with the two files EventAllDayAlarms.icsalarm and EventTimedAlarms.icsalarm. If it does not open calendars and create a test event in that calendar. Go to 2.
4. Open EventAllDayAlarms.icsalarm and EventTimedAlarms.icsalarm. Find the line ATTACH;VALUE=URI:basso and change basso to the sound you like. I had to place the sound file in /System/Library/Sounds.
5. (By the way: If you want to change the default hour for alerts for all day events, change TRIGGER:-PT15H accordingly. PT stands for pacific time, -PT15H means 9 AM (15 hours before beginning of the day).)
6. Reboot

EventAllDayAlarms.icsalarm and EventTimedAlarms.icsalarm are re-created and reset to basso each time calendar prefs are saved. So, in order to prevent overwriting your manual settings accidentally, set them to read only.

Good luck!

Florian

Hi there,

Stop hacky stuffs, here is a clean procedure (*) [images for Yosemite OS]:

A/ open Calendar

in Calendar:

B/ create the event by double clicking on the appropriate time slot to open the pop up event info window (**)

C/ fill in event info and set you reminders:

If no alert is set by default, you need to click on the date to unroll the event panel

In order to define the sound played by the reminder:

move pointer to "alert:" click on "None" > "Custom..."

click on "Message" > "Message with sound"

select sound among available systems sounds (***) and set time

(** OR ⌘N OR File>New Event OR double click on an existing event OR right-click on an existing event > get info)

(***) Here is what you need to know about system sound and how to add more sounds in the system:

1/ sounds are "visible" to the system when in the apple proprietary ".aiff" (****) format (to be checked), and placed in one of the following (not shown by default in Finder) folders:

a) for "you" only (not other users), in your personal Library file:

~/Library/Sounds/

(mind the "~" which always means "home folder of the current user" and get replaced automatically by the correct location, Default is "/Users/yourlogin")

b) all users (system wide):

/Library/Sounds/

(but you need admin privilege to write inside it as it belongs to system)

(****)

2/ mp3 or other format can be converted using Itune (pain in the ...)

a) In Finder:

put the files you want to convert in a folder

b) In Itune set:

Itune>Preferences>"when a CD is inserted" Import Setting > Import using > AIFF

File > Convert > ⌥ Convert to AIFF...

All file are copied and converted to .aiff into your Itune Library Folder.

you get to the file from Itune getting on the track of interest with pointer:

click on "..." > Show in Finder

(* as usual, Apple hide everything to prevent you from using your stuff - it is well known that users can make mistakes ! protect them from their stupid choices ...)