Audio Testing Services | End-to-End Audio Quality Validation

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At VVDN, we specialize in end-to-end audio testing and validation, ensuring products deliver exceptional sound quality, clarity, and performance. Backed by deep domain expertise and a strong understanding of real-world user expectations, our audio engineers support testing from early prototypes to mass production.

Our state-of-the-art in-house audio lab is equipped with cutting-edge tools, including acoustic chambers, Head and Torso Simulators (HATS), precision reference microphones, advanced audio analyzers, and sound power measurement systems. This setup allows us to perform precise, repeatable, and standards-compliant testing—customized to each product’s specific use case.

From earbuds and smart speakers to tablets and voice-enabled devices, VVDN provides actionable insights through rigorous audio performance testing—helping you deliver high-quality, reliable sound experiences to your end users. Our in-house audio experts not only validate performance but also collaborate closely to optimize and tune each product’s audio design, ensuring it stands out in the market with exceptional clarity, balance, and user experience.

Audio Testing & Validation

VVDN delivers end-to-end validation for audio systems, covering microphones, speakers, and sound processing across a wide range of devices. Our in-house lab and experienced engineers perform advanced testing, tuning, and certification to ensure products meet both technical standards and user expectations.

Mic Testing

360 Degree Ambisonic Testing
Frequency Response
Sensitivity
Total Harmonic Distortion (THD)
SNR
Directivity
Phase
AOP(MAX SPL)
Phase
Acoustic Leak free chamber/Port Design and validation

Speaker Testing

Total Harmonic Distortion (THD)
Impedance Response
Resonance Frequency
Sound Pressure Level
Speaker Polarity
Rub & Buzz defect analysis
Perceptual Rub & Buzz Analysis
TS Parameter validation
DC Resistance
Q parameter test

Sound Quality Testing

Frequency Response (MIC and Speaker)
SPL & THD
S/N Ratio
Spectrum Analysis
Call Quality Analysis compliance with TIA /ITU
POLQA
MIC beam Forming validation
Far Field Voice recognition Test

DSP Tuning

AEC
Equalizer
MBDRC(Multi Band Dynamic Range Control)
ANC
Digital Gain Setting
ASR(Automatic Speech Recognition)
CVC, ENC Tuning
Stereo Balancing

Certification Capability

Google GVA –ART /MRT/CRT Self-Test
Amazon AVS – Self Test
TIA/ ITU Self-Test

State-of-the-Art Audio Lab

VVDN’s dedicated audio lab is equipped with cutting-edge testing infrastructure, including a precision-engineered anechoic acoustic chamber, enabling high-fidelity listening tests and accurate audio measurements.

Our team of expert audio engineers leverages the latest hardware and advanced tuning software to rigorously test, calibrate, and refine each product. From initial evaluation to final optimization, we ensure that every design delivers clear, immersive, and high-definition sound quality—tailored to meet each product’s unique performance goals.

Key Equipment and Test Setups:

Acoustic Anechoic Chamber
Soundcheck Software - Perceptual Objective Listening Quality Analysis (POLQA) - TIA & ITU Test Procedure - Audio Spectrum Analysis (SPL, THD+N, Rub & Buzz)
Adobe Audition/Audacity (Audio wave form visualization)
B&K HATS
Arbitrary Digital Signal Generator
Focusrite Audio Interface
CRY6125 - Electroacoustic Analysis System

Target Appliances for Audio Testing

We offer comprehensive audio testing services for a variety of audio-integrated devices, ensuring optimal sound quality and performance across all platforms:

Advanced Audio Testing Services

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