Let's share a method to slow down the audio speed. We need to use an audio tool software.

Tool download address: Click to download "U-speed audio processor"

Step 1, if your computer has not installed the "high-speed audio processor", remember to install it. After opening the software, we can see that there are six functions on the left. Click audio speed change to enter the next step.

Step 2: Click the blue button for adding files or the designated position in the middle of the software, and add the audio files with variable speed to the software. You can add multiple audio files to operate together at the same time, which can save us a lot of time.

The third step, and then the setting step. We drag the point to the right of the playback speed to adjust it. If we drag it to the left, it means that the speed will slow down, and if we drag it to the right, it means that the speed will increase. We can reduce the playback speed to 0.5 times the minimum normal speed.

Step 4, firstly, setting an output directory for storing the processed audio files; Then we click the red button in the upper right corner to start the software program and leave the rest to it.

Step five, when all the audio added to the software is slowed down, the software will automatically open the output folder, and we can see that the processed audio files are saved here and we can use them immediately.