Here are some ideas for recording the audio narration for a digital story.
Speak slowly in a conversational voice. Don't make it sound like you're reading from a script.
Link to Audacity Tutorial
Recommend using external Microphone (less portability)
Using external Microphone (record your voice-over at the same quality level that you record your musical soundtrack: 16-bit, 44 kHz.)
Digital= Good Quality but Expensive
Analog= Lower Quality but Cheap
Transfer into computer
Digital = file
Analog = cable+software