Suppressing Sound and Error Messages
Sound and Message Error Cleaner
When you spam a spell you get sounds and error messages that can be annoying. Using the macro below you will avoid all that. This example is a macro which you can use to spam Arcane Missiles. It will not cut an already channeling Arcane Missile cast, nor will it make the error sound or spam your screen with error messages. ShutUp is a simple addon that take the long Version of this Example.
/console Sound_EnableErrorSpeech 0
/console Sound_EnableSFX 0
/run UIErrorsFrame:UnregisterEvent("UI_ERROR_MESSAGE")
******MACRO HERE EX: /cast [nochanneling:Arcane Missiles] Arcane Missiles *******
/run UIErrorsFrame:RegisterEvent("UI_ERROR_MESSAGE")
/console Sound_EnableSFX 1
/console Sound_EnableErrorSpeech 1
/run UIErrorsFrame:Clear()
Turning it into "/su". Its intended to be used in macros to temporarily suppress error messages and "I can't cast that yet" error sounds. Saving you over 130+ characters, giving you much more room to work with all while getting rd of those annoying error messages. Even if one of the cooldowns isn't up, there won't be red error text or an "I can't cast that yet" voiceover. The second /su just turns the error messages back on you don't need to include it but you can.
Example:
#showtooltip
/startattack
/su
/cast [nochanneling:Arcane Missiles] Arcane Missiles
/su