3 – Empirical and numerical estimation of room acoustic properties

I – HIL E7

II – A Bed Room

2 – Emotional Impact of Everyday Sounds

I – Inside a Train Car

In the train car, acoustically one hears a man speaking on the phone in a foreign language, shrilly sound of a baby crying intermittently, constant rumbling from the moving train, occasional crisping sound of others’ tearing packaging, soft and crispy sound from typing keyboards, muffled sound from the automatic sliding door to the vestibule and whispering sounds of other passengers’ stuffing their belongings from time to time.

Overall, the most catchy sound was from baby crying and the most likely overheard-sound was from the sliding door to the train vestibule.

The higher-pitch sound draws more attention and has more influence to my emotional state.

II – Common space in my wg
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1 – Sound Qualities in Architectural Design

I – Public/Semi-open > Zürich Main Station

The center of transit, under its large canopy houses also shops, restaurants, and links to the underground levels.

For every traveler, commuter, the main station is perhaps the first acoustical experience that each receives from the city of Zürich. Rain or shine, there are always many things happening simultaneously on and around the platform, where one feels the liveliness of a city.

From the audio clip, sounds of siren, beeping sound of closing train doors, and acceleration of train movement weave together. You hear the time slipping away.
Throughout the clip, there is also a constant low frequency buzzing sound originating from the motors of train cars and rustling sound from air flow.

The space sounds live with the echoing of siren and a little muddy. After the train departed, there weren’t many people on the same platform, which renders the space acoustically open.

II – Public/Enclosed > HIL E7

A lecture room in HIL, primarily used as a lecture hall and study space in between courses.

Spatially this room features compressed layout of rectangular shoebox shape with stepping row seats and has folded metal unitized ceiling with acoustic panels along the two long sides of the edges.

Through a recording of clapping in different part of the room while the room is empty (from closer to the lecturer’s position to the very rear end of the space), the acoustic experience at different part of the room varied significantly.

Clapping along center axis of the space creates an echoey and dense effect that is comparable to clapping inside a tunnel. However, when clapping along peripheral of the space, the space becomes dead with almost no reverb.

During the lecture, the lecturer’s voice won’t be able to project to the rear end intelligibly, which deems the use of microphone necessary in most cases.