Test Playback.
Trust Your Monitors.
Check left and right channels, stereo movement, mono compatibility, phase, polarity, bass, mids, treble, noise response, and full-range frequency playback directly in your browser.
Choose A Test.
Set The Level.
Use the controls below for precise channel, frequency, waveform, duration, and volume testing.
Speaker
Activity.
Common Checks.
One Click.
Run common playback tests without changing the master controls.
Left Speaker
Plays a 1 kHz tone only through the left channel.
Right Speaker
Plays a 1 kHz tone only through the right channel.
Stereo Ping-Pong
Moves a tone from left to right so you can verify stereo routing.
Subwoofer Test
Plays a controlled 50 Hz sine wave for sub and bass response checks.
Midrange Test
Plays 1 kHz through both speakers for a clear center reference.
Treble Test
Plays 10 kHz to check high-frequency playback and tweeter output.
Pink Noise
Balanced noise for rough room, speaker, and monitor level checks.
White Noise
Full-spectrum noise for signal-path and high-frequency testing.
Brown Noise
Darker low-heavy noise for bass response and subwoofer testing.
Full Frequency Sweep
Sweeps from 20 Hz to 20 kHz to expose rattles, gaps, and resonances.
Polarity Test
Compares in-phase and polarity-inverted stereo playback.
Mono Center Test
Plays an identical centered signal through both speakers.
Listen For
Playback Problems.
These tests help you identify routing mistakes, blown drivers, rattles, phase problems, weak bass, harsh treble, and uneven stereo playback.
Uneven Left / Right
If one speaker sounds louder, check interface output levels, cables, speaker gain knobs, placement, and room reflections.
Bass Disappears
If bass collapses during polarity testing, check speaker wiring, polarity, stereo widening, and low-end phase relationships.
Rattles During Sweep
Rattles can come from furniture, speaker stands, windows, loose objects, or damaged drivers.
Missing Frequencies
Large dips may indicate room nulls, crossover issues, damaged drivers, or headphone limitations.
Harsh High End
Lower playback immediately if high-frequency tests feel uncomfortable. Never push test tones loudly.
Weak Center Image
A centered mono tone should sound stable between the speakers. If it pulls left or right, check alignment and levels.
Test The Room.
Trust The Mix.
Explore TPH vocal presets, StudioRack chains, DAW templates, drum kits, loops, and creator tools built for cleaner recording, mixing, calibration, and mastering sessions.