SOUND
BLITZ
Train your ears · Beat the clock
Listen to procedurally generated tones. Guess what you hear.
100 pts
per perfect round · 5 rounds total
🔬
TEST ROOM
No scoring · Set every parameter yourself and hear exactly what it sounds like.
Free Play
All Params
Dual Channel
🎵
CASUAL
Identify frequency & rhythm. 15 sec / round.
Hz
BPM
💀
NIGHTMARE
Add waveform & volume. 15 sec / round.
Hz
BPM
Waveform
Volume
⚛️
QUANTUM LISTENER
Different sounds in each ear. 30 sec / round.
Hz
BPM
Waveform
Volume
Duration
Timbre
Bit Depth
🎧 Hearing Range Calibration
HEARING TEST
Calibrate Your Range
We'll play tones from low to high. Press
I CAN HEAR IT
while audible. When it fades beyond your range, press
I CAN'T HEAR IT
.
—
Hz — Playing now
✓ I CAN HEAR IT
✗ I CAN'T HEAR IT
Skip — use full range (80–4000 Hz)
ROUND
1
/ 5
CASUAL
15
SCORE
0
PERFECT!
+100 pts
NEXT ROUND →
BPM PULSE
PLAY / STOP
⚡ SUBMIT GUESS
RESULTS
0
OUT OF 500 POINTS
► PLAY AGAIN
⌂ MENU
🔬 TEST ROOM
No scoring · Free exploration
FREE PLAY
IDLE
RIGHT EAR
BPM PULSE
120 BPM
Channel Mode
🔊 MONO
👂 STEREO (L + R)
Sound Parameters
Frequency
440 Hz
20–20000 Hz
BPM
120
Volume
70%
Waveform
Sine
Square
Triangle
Sawtooth
Timbre (Harmonic Profile)
Pure Sine
Bright
Hollow
Nasal
Warm
Bit Depth
4-bit
8-bit
12-bit
16-bit
24-bit
◄ LEFT EAR
Hz
440
BPM
120
Vol
70%
Waveform
Sine
Sq
Tri
Saw
Timbre
Pure Sine
Bright
Hollow
Nasal
Warm
Bit Depth
4
8
12
16
24
RIGHT EAR ►
Hz
528
BPM
90
Vol
70%
Waveform
Sine
Sq
Tri
Saw
Timbre
Pure Sine
Bright
Hollow
Nasal
Warm
Bit Depth
4
8
12
16
24
▮ STOP ALL
⌂ MENU
Changes apply instantly · BPM runs independently from other controls