Treinta segundos para salir de dudas: izquierda, derecha, centro, un barrido completo y una comprobación de graves. Si los cinco se comportan, tu audio funciona — si uno falla, sabes exactamente dónde mirar.
Un canal está mudo o débil: balance del sistema, cable o rejilla obstruida. Los graves zumban: suciedad o vibración — el limpiador de altavoz se encarga del polvo y el agua. El barrido suena irregular: mídelo con precisión con el generador de barrido completo y comprueba si el extremo agudo son tus oídos y no el equipo.
Las herramientas de diagnóstico: Headphone Test · Balance Test · Fix My Speaker · Sweep Generator · Hearing Age Test · Mic Test
Ejecuta las comprobaciones en orden: Izquierda reproduce un tono solo en el canal izquierdo, Derecha solo en el derecho, Centro debe sonar exactamente en el medio, el barrido debe deslizarse suave de grave a agudo sin cortes, y el tono de graves debe sonar limpio, sin zumbar. Treinta segundos y sabes si el problema es tu dispositivo, tus altavoces o un canal concreto.
En orden: el volumen físico y el silencio en el dispositivo y en el sistema, la selección del dispositivo de salida (los dispositivos Bluetooth adoran robar la salida en silencio), el silencio de la pestaña del navegador (clic derecho en la pestaña) y el cable o el emparejamiento. Si otra web o app reproduce sonido, el fallo es de esa app; si nada suena, es del sistema.
Revisa primero el balance del sistema (se descoloca tras algunas actualizaciones), luego el cable — muévelo en el conector mientras suena un tono; si cruje, hay un conductor roto. En auriculares de botón, la causa principal es el filtro obstruido por cera. Solo después sospecha del driver. La ruta completa de diagnóstico está en la página de prueba de auriculares.
Los huecos en el barrido son frecuencias que tu equipo (o tus oídos, en el extremo agudo) no puede reproducir — normal en altavoces pequeños por debajo de 100 Hz. El zumbido en el tono de graves significa que algo vibra: un pelo en el diafragma, una rejilla suelta o un mueble que resuena. Limpia la rejilla, aísla el altavoz y repite la prueba.
Generate single tones with precise frequency control. Perfect for quick audio testing and tuning.
Play multiple frequencies simultaneously with independent volume and panning controls.
Create linear or exponential frequency sweeps for speaker testing and room acoustics analysis.
Generate binaural beats for meditation, focus, and relaxation. Requires headphones for proper effect.
Generate telephone dial pad tones (Dual Tone Multi Frequency). Interactive touch-tone dial pad.
Professional metronome with tap tempo, time signatures, subdivisions, and tempo trainer for musicians.
Tap along to any song to find its tempo in beats per minute. Includes tempo markings reference.
Hear major, minor, diminished, and seventh chords in every key. Block chords or arpeggios.
Hear classic progressions like I-V-vi-IV and 12-bar blues in any key at any tempo.
Free browser piano with 3 octaves, note names, and computer keyboard support.
Generate white, pink, and brown noise for sleep, focus, tinnitus relief, and speaker burn-in.
Reference tuning notes for guitar, bass, ukulele, violin, cello, and more at concert pitch (A440).
Test your subwoofer with a 60-second frequency sweep (150Hz-1Hz) and individual bass test tones.
Test your hearing range from 8kHz to 20kHz. Find your hearing age and compare with averages.
Ancient healing tones including 528Hz (DNA repair). For meditation, chakra activation, and spiritual healing.
Test stereo balance with panning control and left/right channel testing. Perfect for speaker setup.
Check speaker wiring polarity by comparing in-phase and out-of-phase test signals.
Measure your Bluetooth or system audio delay in milliseconds with a click-and-flash sync test.
Real-time frequency analysis of your microphone input with a live log-frequency display.
Measure approximate sound levels with your microphone - live dB with min/avg/max tracking.
Check your microphone in seconds: live waveform, level meter, and record-and-playback check.
Learn to recognize musical intervals by ear with quiz mode, score tracking, and song mnemonics.
Chromatic pitch pipe with all 12 notes across 3 octaves. Perfect for singers, choirs, and a cappella groups.
Experience the auditory illusion of an infinitely ascending or descending tone. Mind-bending psychoacoustic phenomenon.
Can you hear the mosquito tone? High-frequency test (15-20kHz) that only young people can hear. Find your hearing age!
Create relaxing ambient soundscapes with singing bowls, nature sounds, and binaural beats.
Three sound modes to clean a muffled speaker: 165 Hz water eject, dust-shaking sweeps, and vibration.
Push water out of a wet phone or watch speaker with a pulsed 165 Hz tone - the same method Apple Watch uses.
Adjustable high-frequency whistle (8-22 kHz) for dog training - clearly audible to dogs, silent to most adults.
Rhythmic pulsed tones across delta to gamma ranges. Stronger than binaural beats and works without headphones.
Name 12 random notes with no reference tone and find out if you have absolute pitch or great pitch memory.
Sing your lowest and highest notes and get your range plus voice type - bass to soprano. Mic-based, nothing uploaded.
Find the highest frequency you can hear (8-20 kHz) and see how old your ears test. Takes one minute.
Instant karaoke via center-channel cancellation - free, unlimited, and processed locally.
Record from your microphone and download as WAV - no signup, nothing uploaded.
Normalize any file to a LUFS target with true-peak protection instead of silent clipping.
16-step beat maker with synthesized 808-style drums, swing, and shareable pattern links.
Drop a file and get integrated LUFS, true peak, RMS, and a waveform - measured locally, nothing uploaded.
Microphone tuner with a cents needle - play any note on any instrument and tune to ±5 cents.
Five-minute headphone checkup: channels, wiring polarity, bass and treble reach, and driver distortion.
Send noise to each 5.1 channel - fronts, center, surrounds, and subwoofer - and catch swapped or dead speakers.