Student Center Observation

I recorded two brief (3 seconds to 10 seconds) audio files in the Student Center. At one time with my phone and another time with the purpose of direction regarding the placement of the setting of the microphone on the Phone.
In pointing my phone's microphone in the correct direction in capturing the sound correctly I got a better sound. My direct sound pattern pick up more clearly of what I was aiming for in the student center. Getting close to a sound source at the Student Center on my cell phone depending on positions the of sound could be different.
2. The ambient sound captured the sense of the space by locating my self in the midst of the soundscape in the student center. This allowed me to a multitrack session using a video as a reference. After I added a crossfade between two pieces of music, using the (Essential Sound) panel to adjust the clarity of the sound and reduce the volume by adjusting the level of the entire track, to create the individual clips.
Using the lab computer and Adobe Audition, creating two (2) exported mix files that demonstrated the contrast between audio recordings. I created in the field at the student center with a cellphone and recordings mic, on my cell phone. I created with a Zoom handheld digital recorder the better sound effects. I use the automated data points to adjust the sound levels between the sets of tracks, alternate between them to create an "A - B" comparison. One exported audio mix file demonstrated the contrast between direct sounds recorded by phone and Zoom. I name this file "Direct Sound Contrast Mix."
The second exported audio mix file will demonstrate the contrast between ambient sounds recorded by phone and Zoom. Name this file "Ambient Sound Contrast Mix."
When choosing the MP3 file format to export my files.
 I found that Adobe Audition disallowed me do so, thus creating a wav