You may be tired of system beep ,or you just want to change your ubuntu login/logout sound effects,and I will tell you how to do it easily in this tutorial.

First,open up the sound preferences at System–>Preferences–>Sound

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To disable system beep,click on Sounds tab and untick Play alert sound

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For login or logout sound effects,at Alerts and Sound Effects box,find the line and click on Default,select Custom to change it in menu.

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