A radio & 1994.
The sounds of a home and the first encounters with Japanese vintage Hi-End before I knew there were words for timbre, dynamics or decay.
HANOI · VIETNAM · 2026
Vũ
Hoàng
Engineer, Listener and Music Curator
An engineer's mind. A listener's ear.
An engineer's mind. A listener's ear.
Technology by profession. Sound by instinct.
Một không gian lắng đọng giữa logic hệ thống hạ tầng và nghệ thuật âm thanh mộc trong lòng phố cổ Hà Nội.
Một không gian lắng đọng giữa logic hệ thống hạ tầng và nghệ thuật âm thanh mộc trong lòng phố cổ Hà Nội.
VU HOANG · HANOI SYSTEM / LISTENER
THE LISTENING LIFE SCROLL TO LISTEN ↓
SIGNAL / 01
The
System
Before sound, there was the system.
I have always been curious about what happens beneath the surface.
How things connect. How signals move. How a system behaves when everything is working — and when it isn't.
My relationship with sound and technology began in the 90s with world music and Japanese Koukyuu audio, before curiosity gradually expanded into engineering: networks, systems, infrastructure and real-world banking platforms.
1994
Koukyuu Audio & World Music
Bắt đầu tiếp xúc với âm nhạc thế giới và những thiết bị Koukyuu Audio Vintage Hi-End — khởi đầu cho đôi tai lắng nghe chiều sâu, chuẩn mực âm thanh mộc và sự tinh tế của các linh kiện cơ khí chính xác.
2000
The Internet
Computers, networks and the early Vietnamese Internet through the TTVN / FPT environment.
2001
Exploring the unknown
Early Internet culture, CLB Mật Mã, HVA — a period of exploration around networks, systems and information security.
LATER
Systems
From network research to real-world systems, including core banking projects and infrastructure.
VIET CAPITAL
Building from the ground up
Participating in building systems from the early days of Viet Capital.
Perhaps that is why
I listen to sound differently.
SIGNAL / 02
The
Ear
An engineer's mind. A listener's ear.
I don't only hear the object. I listen to the system around it.
Đôi tai là tiêu chuẩn đo lường tối thượng. Trước khi âm thanh trở thành cảm xúc, nó là mức tham chiếu, động lực học và độ tĩnh của không gian.
ClarityWHAT IS REVEALED
DynamicsHOW IT BREATHES
TextureWHAT IT FEELS LIKE
SpaceWHERE IT LIVES
DecayWHAT REMAINS
SilenceWHAT IS NOT PLAYED
SIGNAL / 03 · LISTENING NOTE 001
Decay
The note ends.
But something remains.
But something remains.
After listening to many guitar players, I once noticed something unusually moving in the playing of Phil McGarrick: the emotional continuity of one note into the next.
It wasn't simply tone. It was the life inside the decay — the feeling that the previous note had not disappeared before the next one arrived.
SIGNAL / 04
My
Listening
Not the best equipment. The right relationship.
I don't believe there is one perfect speaker, one perfect amplifier, or one correct way to listen.
Different rooms. Different systems. Different music. Different ears.
What matters to me is the relationship between them — and whether the music makes me want to stay for one more track.
I am drawn to reference-grade systems: carefully matched vintage Hi-End components, refined Class-A amplification, revealing loudspeakers and a room that allows the recording to breathe. The point is not the badge on the front panel, but the quality of the relationship between source, system, room and listener.
KOUKYUU AUDIOVINTAGE HI-ENDCLASS-AREFERENCE-GRADECAREFULLY MATCHEDLISTENING ROOM
SIGNAL / 05
The
Ritual
Sometimes listening requires doing nothing else.
SIGNAL / 06
Sounds I
Remember
Long before I knew how to describe sound, I was already listening.
A cassette.
Music passed from one hand to another, carrying not only songs but the memory of where they came from.
Paul Mauriat & Vivaldi.
Some melodies survive decades without needing to explain why.
A CD tray closing.
One small mechanical sound before the room becomes quiet enough to listen.
SIGNAL / 07
Inner
Hanoi
People, rooms and the culture of listening.
Hanoi has its own way of listening.
Quiet rooms behind old streets. Morning coffee. Tea and conversations that last longer than expected. Music playing while the city continues outside.
I am interested in the people, places and memories that exist inside that soundscape.
SIGNAL / 08
Notes
Things worth remembering.
The Note That Remains
On guitar, sustain, decay and emotional continuity.
A Room in Hanoi
A small room, a system, and a conversation that lasted into the evening.
The Sound I Grew Up With
The first sounds that became part of an internal reference.
Why I Still Listen
Technology changes. Music changes. The need to listen remains.