MÉTRIQUES D'ENTRÉE MICRO IEC 61672-1

Teste Online de Microfone (Retorno de Áudio em Tempo Real)

Inspectez les niveaux d'entrée micro, la clarté vocale, l'écrêtage et le bruit de fond en temps réel avec l'API Web Audio côté client.

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)

Preparação

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

Execução

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

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.

MÉTRIQUES ÉLECTROACOUSTIQUES

Structure de Gain, Directivité et Bruit de Fond

Optimiser son micro exige un gain calibré et un bon rapport signal/bruit. Notre visualiseur mesure les crêtes en dBFS pour prévenir toute distorsion.

Structure de Gain-18 dBFS à -6 dBFS

Marge vocale idéale évitant toute saturation ou distorsion.

Rejet CardioïdeDirectivité

Isole la voix frontale tout en atténuant les réverbérations.

Bruit de Fond (dBFS)Souffle du Préampli

Quantifie le bruit électrique résiduel dans le silence.

Technical FAQs & Helpful Content

FAQ Test de Microphone

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

01.How does the online Microphone Test analyze audio input?

Our tool requests temporary microphone access via HTML5 navigator.mediaDevices.getUserMedia() and processes incoming PCM audio samples using Web Audio API AudioWorklet nodes.

02.Is my microphone audio recorded or transmitted to external servers?

No. All audio signal analysis executes 100% locally in your web browser RAM. Zero audio files or voice recordings are uploaded.

03.What is an ideal microphone gain level for clear voice calls?

Peak speech levels should hover between -18dBFS and -6dBFS. If levels hit 0dBFS, digital clipping distortion occurs.

04.What causes background static hiss or hum in microphone recordings?

Static hum is caused by ungrounded USB ports, cheap motherboard audio preamps, unshielded cables, or excessive digital gain boost (+30dB).

05.What is the difference between condenser and dynamic microphones?

Condenser microphones use an ultra-thin charged diaphragm, capturing high vocal detail and wide frequency response. Dynamic microphones use a rugged moving coil, making them ideal for noisy environments.

06.How does microphone polar pattern (Cardioid vs Omnidirectional) affect noise?

Cardioid microphones pick up sound exclusively from the front while rejecting rear room noise. Omnidirectional microphones capture sound equally from all 360° angles.

07.Why is my microphone volume quiet even at 100% OS gain?

Quiet audio can be caused by low preamp gain on high-impedance dynamic mics (such as the Shure SM7B), requiring an inline pre-preamp like a Cloudlifter or audio interface upgrade.

08.How do pop filters prevent plosive 'P' and 'B' distortion?

Pop filters diffuse high-velocity bursts of air emitted by human lips during spoken plosives before the air hits the sensitive microphone diaphragm.

09.Can Bluetooth headset microphones achieve high-fidelity 48kHz recording?

Standard Bluetooth Hands-Free Profile (HFP) compresses microphone audio to 8kHz or 16kHz mono. USB wired or 2.4GHz wireless mics are required for full 48kHz uncompressed audio.

10.How do I fix microphone echo during video conference calls?

Echo happens when speaker audio bleeds back into an open mic. Wear headphones or enable OS Acoustic Echo Cancellation (AEC).

Não tem certeza de qual teste executar a seguir? Precisa de ajuda com problemas?

Ler Guia Completo de Diagnóstico →

PASS

ENTRÉE MICRO PRÊTE

Flux getUserMedia W3C

-12.4/dBFS

Niveau Vocal-12.4 dBFS (Bon)

Protection ÉcrêtagePropre (0 Écrêtage)

Relevé du Microphone

Télémétrie AudioWorklet PCM

IEC 61672-1

Niveau Crête Vocal

-12.4dBFS

Bruit de Fond Ambiant

-62.1dBFS

Dépassements d'Écrêtage

0clips

Contrôles du Microphone

Paramètres Périphérique & Traitement

Controls

Flux Micro d'Entrée

Annulation d'Écho Acoustique (AEC)

Informations du Flux Micro

Attributs MediaTrackSettings

Hardware HID

Taux d'Échantillonnage48 000 Hz

Nombre de Canaux1 (Mono Cardioïde)

Suppression du BruitActive (WebRTC)

Tampon de Latence10.0 ms

Shortcuts

Keyboard Navigation

Hotkeys

M

Couper / Activer le Micro

R

Réinitialiser le Vumètre

TV users can navigate with D-Pad & Remote arrow keys