Critique of Walking Tour

The concept revolving around this interaction is subtle and sometimes too subtle. Peter Stuyvesant's farm tour is an interesting audio backdrop to what exists now in Manhattan; but was it really that immersive?
Each numbered code given to us contains a specified area with accompanying audio clip. As you walk or bumble about the general area you find on the map one has to listen to the audio clip. One notes the poor quality almost immediately of these clips. I draw comparisons of immersion to another audio tour I took 2 years ago in Central Park which involved ambient sounds and headphone speakers. This scenario relied on timing and involvement of the user while this tour is more like a played-out website scenario (all live) or a museum tour guide. The major differences here however are what set this tour back.
Lack of ambience and poor quality certainly do not draw attention to the piece. From this 'user's' point of view it is almost a task to complete these tasks. Straight from the get-go we had to read this map and "treasure hunt" our codes out. It wasn't so much that the task was hard as it was merely time consuming and it was not a consolidation of skill to find these places as just a mere hindrance in our quest to hear each audio clip in its proper place on the map.
These problems from a designer's point of view seem glaring but I suppose this is what the designer's failed to realize. It seems that their piece was merely only trying to allocate at the surface the ideal behind many interactive pieces; audio, sound, location and interaction. The glaring noticeable flaws mentioned above seemed to be ignored as they had finished their own agendas in the first place.
As stated, the hindrances in the piece make this a difficult project to remark on. The audience I would imagine would be tourists or even locals. Certainly not kids unless an immersion factor was played out more. If this was a beta test , I would add different interactive phone features (unknown just now what or how), better sound quality and audio immersion (perhaps make it seem like you can hear someone from the 17th century speaking from a phone in that exact location . ie. "Why hello this is my old - WOAH WATCH OUT THEIR HORSE!!") and finally, ANOTHER NUMBER. I had to do this the next day as everyone was calling on this number during the time given.