In the previous article, we showed you how to record your voice and play it back on a slide by clicking on it. Now we show you how to get the recording to play as soon as the slide comes up and, if you need to, how to get it to continue playing even when you go to the next slide.
We assume the sound icon (shown below) is displayed on the slide:

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Right-click on the icon and choose “Custom Animation...” (You can also choose it from the Slide Show menu.) This will bring up the following box on the right of your screen (the name displayed in the box may be different from “Media 4”):
(To see a larger view of any image, click on the image.)

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Media 4 refers to the recording. Note the information that the recording will start to play On Click.
Click on the drop-down arrow in the box with the recording name and choose Timing... from the options that appear. This brings up the following:

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Click on the drop-down arrow in the box next to Start and select After Previous. This will change the above box into:

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The radio button Animate as part of click sequence should be selected. If it is not, click on it to select it.
If you click OK and view the presentation (press F5 or select Slide Show > View Show from the menu bar), the recording will start to play as soon as the slide comes up.
If you do not want the recording to start immediately, you can use the Delay box to specify how long to wait before the recording starts to play. For example, if you set the delay to 5 seconds, the recording will start to play 5 seconds after the slide comes up. The Delay box can be used to give you tighter control over when the recording is played.