PCBA Consumer Electronics Binaural Microphone SMT Printed Circuit Board Assembly

PCBA  Images

About TECircuit

Found: TECircuit has been operating since 2004.

Location: An electronics manufacturing service(EMS) provider located in Shenzhen China.

Item: Customizable EMS PCB, offers a full range of one-stop shop services.

Service: Printed Circuit Board (PCB)and Printed Circuit Board Assembly(PCBA), Flexible Printed Circuit Board(FPC), Components Sourcing, Box-Building, Testing.

Quality Assurance: UL,ISO 9001, ISO 14001, ISO 13485, ITAF 16949 andcomplied with ROHS and REACH.

Factory Pictures:
Company's own plant : 50,000 sqm; Employees : 930+; Monthly production capacity : 100,000 m2

PCBA  Applications

• Immersive Audio Recording for ASMR and 3D Soundscapes: The PCBA captures and processes two perfectly synchronized audio channels to create lifelike, three-dimensional sound recordings. This is essential for ASMR content, immersive podcasts, and soundscape design that relies on precise spatial cues to simulate a natural listening experience.

• Virtual Reality (VR) and Augmented Reality (AR) Content Production: Serves as the primary audio capture hardware for VR/AR experiences. By recording sound exactly as human ears perceive it (with interaural time and level differences), the PCBA enables audio that accurately matches 360-degree video, creating a convincing sense of presence and space.

• Acoustic Research, Psychoacoustics, and Architectural Measurement: Used by researchers and audio engineers to analyze how sound interacts with spaces and human hearing. The PCBA provides the accurate, spatially-correlated data needed to study reverberation, sound localization, and the acoustic properties of concert halls or other environments.

• High-Fidelity Field Recording for Film and Gaming: Employed in film sound design and game audio production to capture authentic ambient backgrounds, Foley sounds, and specific sound effects with full spatial information. This allows sound designers to create rich, realistic audio beds that enhance visual media.

• Auditory Training and Hearing Aid Development: Provides a tool for simulating real-world listening scenarios for auditory training programs or for testing and calibrating hearing aids and headphones. The PCBA's accurate binaural recording capability is key to evaluating how devices perform with spatial sounds.

• Specialized Music Recording and Experimental Audio Art: Enables musicians and audio artists to record musical performances or create sonic art pieces in a way that preserves the natural spatial relationship and ambiance of the performance space, offering an alternative to traditional stereo microphone techniques.

PCBA Features 

1. Dual-Channel, Matched High-Fidelity Preamplifier and ADC Pair: The PCBA incorporates two identical, ultra-low-noise microphone preamplifier circuits paired with precisely clock-synchronized, high-resolution Analog-to-Digital Converters (ADCs). This ensures the two audio channels have perfectly matched gain, phase, and frequency response, which is critical for accurate spatial imaging.

2. Spatial Audio Processing and Head-Related Transfer Function (HRTF) Support: In advanced models, the PCBA may include a Digital Signal Processor (DSP) capable of applying or encoding basic Head-Related Transfer Function data. This processing subtly shapes the frequency response of each channel to mimic the acoustic shadowing and filtering effects of a human head and ears, enhancing the 3D effect during playback over headphones.

3. Precision Clock Generator for Sample Synchronization: Features a master clock generator of very low jitter to drive both ADCs. This guarantees that the left and right channel samples are taken at exactly the same moment, preserving the microsecond-level timing differences that the brain uses to localize sound.

4. Ambient Noise Reduction and Wind Protection Circuitry: Includes DSP-based algorithms or analog filtering designed to reduce low-frequency rumble and wind noise—common issues in outdoor binaural recording—without disrupting the delicate high-frequency spatial cues crucial for the binaural effect.

5. Multi-Mode Output and Connectivity: The board integrates connectivity for various outputs, typically including a USB audio interface controller for direct connection to computers, and may also feature analog line-out or digital (S/PDIF) connectors for professional audio recorders. Power is often supplied via USB or phantom power interfaces.

6. Advanced Power Management for Portable Operation: Employs an efficient Power Management IC (PMIC) to provide clean, isolated power to the sensitive analog preamps and digital circuitry. This is especially important for battery-powered field recorders to maximize runtime and minimize self-noise that could degrade the pristine audio capture.

7. Durable Form Factor and Ergonomic Integration: The PCBA is designed to fit within specific mechanical housings, often a dummy head or specialized ear-mounted frame. The layout considers cable routing for the two spatially separated microphone capsules and incorporates robust connectors to withstand field use.

FAQ

​PCB & PCBA  Description​

PCB Assembly OEM Service

Electronic Components Material Purchasing

Bare PCB Fabrication

Cable, Wire-harness Assembly, Sheet Metal, Electrical Cabinet Assembly Service

PCB Assembly Service: SMT, BGA, DIP

PCBA test: AOI, In-Circuit Test (ICT), Functioal Test (FCT)

Conformal Coating Service

Prototyping and Mass Production

PCBA ODM service PCB Layout, PCBA Design According To Your Idea PCBA Copy/Clone Digital Circuit Design / Analog Circuit Design/ lRF Design /Embedded Software Design Firmware and Microcode Programming Windows Application (GUI) Programming/Windows Device Driver (WDM) Programming Embedded User Interface Design / lSystem Hardware Design

Ratings & Review

Overall Rating

5.0

Based on 50 reviews for this supplier

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S

Solar Inverter RIGID PCB Board Multi Layer Printed Circuit Board Manufacturing

Brazil Jul 18.2025

Helpful (378)

Quick win: this supplier’s PCBs are solid. Tested 50+ units – 0 defects. Delivery to Brazil took only 12 days, and their quote beat 3 other vendors. Lock them in for our Q2 projects.

S

Silkscreen Color Industrial Control PCB Assembly PCBA Electronic Circuit Board Assembly

France Jun 12.2025

Helpful (158)

Quick note – this supplier’s PCBA work is top-notch. On-time delivery, zero defects found in our inspection, and their pricing is competitive too. Highly recommend for future BOMs.

Q

Quick Turnaround Consumer Electronics PCB Assembly Multilayer PCB Manufacturing

Italy Mar 5.2025

Helpful (458)

Just a quick note to say how impressed we are with your PCBA products! The quality is consistent with our specs, delivery was right on schedule, and your team’s support made the whole process seamless. We’ll definitely keep coming back for future orders.