GarageBand is a digital audio workstation (DAW) program developed by Apple. It is used to record, edit, and mix music. The program allows users to make high-quality recordings with ease. The program comes with a large number of plug-ins and effects that can be used to add effects to the recorded sound. These effects include filters, equalizers, reverbs, delays, pitch changes, and distortion.
The software offers an easy and user-friendly interface. The software is compatible with all music-creation tools: for recording, mastering, editing, mixing, and sequencing. It is easy to create a GarageBand song. 
It is possible for you to start recording your own songs, or you can record them from your own microphone or from other audio sources. These are the steps to create a song using GarageBand. First, open GarageBand and put the file on it for the first time. Click on File > New > Song and choose the song that you would like. Enter a name for the song that you will be producing. Then select the option “import from” that shows on the menu.
As mentioned, GarageBand is Apple’s entry-level music making application. This software allows you to create your own songs using an easy-to-use interface. If you are a novice at making music, this software is for you. However, there are some drawbacks to this software that should be considered before purchasing it.
Let’s take a look at some possible solutions for your problems:
If it seems that GarageBand is not hearing anything from the microphone or line input, then it is likely that the Mac hasn’t been taught to listen to the right audio source.
Open the sound preferences pane in OSX and click on the input tab. Choose the music source that you would like to record, and adjust the volume slider to allow you to sing or play. When your loudest notes are played, it should briefly illuminate the rightmost bars. Return to GarageBand and open the audio/midi preference menu. Click on the audio input menu and check to see if the correct input is selected.
If the problem persists, try one of these steps:
Ensure that you are working with a blue real instrument track. If you select a track that uses a green software instrument, GarageBand ignores your microphone and instrument.
Check that you haven’t muted this track or soloed another track. The icon that represents your musical instrument should be blue, but the headphones icon on any other instrument should not be lit up. When you are there, make sure that the track’s volume slider isn’t set to zero.
Your GarageBand is set up so that it is able to listen to the wrong channel. Double-click on the header of the track and examine the pop-up menu, the input format (mono and stereo) and the format (stereo) settings.
If you are using a mixer or a sound interface, make sure that the volume is turned down to the minimum.
Check that the sound that you are hearing is really coming from the instrument. If it’s electric, be sure that the power is on and the volume is turned up. Also make sure that all the connections are good, especially if you have included plug adapters.
When you use a Griffin iMic adapter, ensure that you have connected your microphone to the iMic’s input jack (the one that has a microphone symbol). Also make sure that the microphone switch is facing toward the microphone symbol. Open Garageband’s audio and midi preferences and select the usb audio interface from the audio input pop-up menu.
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