You can check the step-by-step guide here: https://aquapp.net/support/aqua-sound-user-guide.html
Step 1: When you launch the Aqua Sound, you'll see a window for the free trial version. Click "Purchase" to register for more features of the program. This will take you to the page where you can register for the tool and choose a pricing plan. When you make a purchase, you'll be asked for an email address where the registration code will be sent.
Step 2: Next, return to the Aqua Sound and click "Register this product." Enter or type the email address you used to buy the software in the registration window. Next, enter the registration code you received in your email into the tool. Finally, click "Activate" and enjoy your full access to the software.
To schedule a recording task, first, switch on the "Task Schedule" on the main interface of Aqua Sound. Once it's on, click "Add" to schedule a new task. From this window, you can set the length of the recording, the start time, the recording set, and other options. Click "OK" when you're done setting up. Based on your settings, the program will automatically start recording.
This issue is to be expected if Aqua Sound's default hotkeys are being used by other applications on the computer. You may fix this by adjusting the program's hotkeys. Launch the Music Recorder, and then choose "Preferences" from the "Menu" drop-down. Click the "Hotkeys" tab to swap out the program's default hotkeys for others on your keyboard. Finally, make sure you click "OK" to apply your changes.
Pandora can only be accessed and used within the United States due to licensing restrictions. So, a VPN is required if you are outside the United States and wish to record Pandora music. After you've got it, you may proceed with the instructions down below.
Go to the Pandora official music streaming site and find the music you want to record. After finding the desired music, you may begin recording by launching Aqua Sound and selecting "System Sound." Next, press the "REC" button and start the recording while listening to Pandora music.
You can freely pause the recording during the recording process. Meanwhile, you can adjust the volume of the system audio. When the recording is OK, click the red Stop button to stop it and then click Save to save the captured Pandora music to your computer.
Aqua Sound is a flexible program that allows users to record any sound coming from a computer's microphone or the System Sound. Just activate the "System Sound" and "Microphone" buttons on the tool's primary interface to record computer audio from both sources. There you go! Start your recording process.