The TimePeriodAlarm indicator is used to indicate the time remaining until the bar closes, if the ‘Time period’ parameter:’is specified explicitly (not ‘current’), the chart shows the time until the bar closes for the current period and the period specified explicitly.

Ten seconds before the bar closes (the period specified explicitly), a preliminary sound signal and a color indication are given, then the main signal (can be set by the user) in the ‘Sound file(.wav)’parameter. The sound file should be located in the Sounds folder of the trading terminal. If this parameter is specified ‘default’, the default sound is used, if ‘space”or empty-the sound indication is disabled.

You can also disable/enable the sound signal by clicking on the speaker image.