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DISPLAY TEST/ONLINE
ROUTAGE MULTICANAL W3C WEBAUDIO

Diagnóstico Acústico e Teste de Som - Display Test Online

Vérifiez le routage discret en 5.1 et 7.1 : Avant Gauche, Centre, Avant Droit, Caisson LFE, Surround G/D et Arrière G/D.

WEB AUDIO SYNTHESIZER & SPECTRUM SCOPE
Pronto
FREQ: 440 Hz|VOL: 80%
W3C WEB AUDIO API 48kHz
FREQUENCY SELECTOR440 Hz
OUTPUT GAIN / VOLUME80%
PROTOCOLO DE DIAGNÓSTICO

Como Executar Este Teste de Tela (01, 02, 03)

01

Preparação

Limpe a superfície do monitor, desative sensores de luz ambiente e defina a resolução e taxa de atualização nativas.

02

Execução

Entre no modo de tela cheia (F11) e use os controles para navegar pelos padrões de teste.

03

Avaliação

Observe anomalias de diferentes ângulos de visão em um ambiente escuro. Consulte nossos guias para interpretar os resultados.

ARQUITETURA DE HARDWARE

Comparativo de Tecnologias de Painel

IPS Profissional (In-Plane Switching)

Precisão de cores e ângulos de visão superiores. Usado em monitores de referência. Sujeito a leve brilho IPS no escuro.

IPS Gamer (Fast IPS / Nano IPS)

Altas taxas de atualização e tempos de resposta rápidos para jogos, porém contraste estático menor que o VA.

Painel VA (Alinhamento Vertical)

Excelentes pretos profundos e alto contraste (3000:1+). Comum em telas curvas. Pode apresentar black smearing em movimento rápido.

OLED (LED Orgânico) e QD-OLED

Pixels autoiluminados proporcionam preto puro, tempos de resposta quase instantâneos e contraste infinito. Sujeito a ABL.

ACOUSTIQUE MULTICANALE

Routage Multicanal, Canal LFE et Audio Spatial 3D HRTF

Les installations surround nécessitent une vérification indépendante de chaque canal pour valider le placement physique et le câblage. Nos nœuds de séparation Web Audio isolent chaque canal avec précision.

Avant & CentreFL, FC, FR

Ancre les dialogues et la scène frontale au centre de l'écran.

Caisson LFEEffets Basses Fréquences

Transmet les impacts sous 120Hz aux caissons de basses actifs.

Surround & ArrièreSL/SR & RL/RR

Crée une immersion spatiale à 360 degrés et des repères arrière.

Technical FAQs & Helpful Content

FAQ Son Surround 5.1 & 7.1

Tudo o que você precisa saber sobre este instrumento de diagnóstico, procedimentos de calibração e normas técnicas.

01.Can web browsers play discrete 5.1 and 7.1 multichannel surround audio?
Yes. Modern web browsers (Chrome, Edge, Safari) supporting Web Audio API can route uncompressed discrete PCM audio channels directly to multichannel soundcards and AV receivers.
02.What are the individual channels tested in a 5.1 surround sound setup?
A 5.1 setup consists of 5 full-range channels (Front Left, Center, Front Right, Surround Left, Surround Right) and 1 Low-Frequency Effects (LFE Subwoofer) channel.
03.What additional channels are added in a 7.1 surround sound system?
A 7.1 setup adds 2 Rear Surround channels (Rear Left and Rear Right) behind the listening position in addition to the standard 5.1 speaker layout.
04.Why does surround sound play in stereo when testing 5.1 in my browser?
Ensure your operating system audio settings (Windows Sound Control Panel / macOS Audio MIDI Setup) are set to '5.1 Surround' or '7.1 Surround' and that HDMI/Optical output pass-through is active.
05.What is the function of the dedicated Center channel speaker in home theater?
The Center channel delivers dialogue and on-screen vocal audio, anchoring voice signals to the center of the display screen.
06.What is the LFE (.1) channel and how is it processed by subwoofers?
The Low-Frequency Effects (LFE) channel delivers dedicated low-bass effects (10Hz to 120Hz) directly to active subwoofers without robbing power from main speakers.
07.What is virtual HRTF surround sound for headphones?
Head-Related Transfer Function (HRTF) algorithms simulate spatial 3D surround sound over standard stereo headphones by applying acoustic ear-filtering micro-delays.
08.How do I configure HDMI eARC for uncompressed 7.1 PCM surround sound?
Connect your PC or console directly to your AV Receiver via HDMI eARC, set audio output to 'Uncompressed 7.1 LPCM', and disable lossy Dolby Digital re-encoding.
09.Why does dialogue sound quiet while action explosions sound too loud in movies?
This occurs when 5.1 surround audio is downmixed to 2.0 stereo without dynamic range compression (DRC) or proper center channel dialogue gain boosting.
10.Does Web Audio API support spatial 3D audio object positioning (PannerNode)?
Yes. Web Audio API includes PannerNode and AudioListener interfaces for positioning 3D audio objects in virtual spatial coordinates around the listener.
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Ler Guia Completo de Diagnóstico →
PASS

SURROUND 5.1 ACTIF

Flux Séparateur W3C

6/Ch
Channel Mode5.1 LPCM Multi
Subwoofer LFEActif (Dédié)

Métriques Surround

Télémétrie de Canaux

5.1/7.1 LPCM
Sortie Canal Actif
Center
Total Canaux de Sortie
6ch
Signal Caisson LFE
-18.0dBFS

Routage Surround

Sélecteur de Disposition & Signal

Controls

Shortcuts

Keyboard Navigation

Hotkeys
1-8
Sélection Directe (FL, FC, FR...)
Space
Faire Défiler Tous les Canaux
TV users can navigate with D-Pad & Remote arrow keys
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