ANC Microphone Array

Product Specifications

Technical details and manufacturing context for ANC Microphone Array

Definition

The ANC Microphone Array is a component used in portable Bluetooth noise-cancelling headphones. It consists of multiple strategically placed microphones that work together to capture environmental noise from different directions. This array feeds audio data to the ANC processor, enabling real-time analysis and generation of anti-noise signals to cancel out unwanted sounds while preserving desired audio content. The array typically includes MEMS microphone elements mounted on a PCB substrate with copper wiring, enclosed in a plastic housing. The number of microphones can range from 2 to 6, with more microphones improving noise cancellation but increasing cost and power consumption. Key parameters include microphone sensitivity of -42 ±3 dBV/Pa (per IEC 61094), signal-to-noise ratio of at least 62 dB (per IEC 60268), frequency response of 20–20k Hz, total harmonic distortion of ≤1%, acoustic overload point of ≥115 dB SPL, supply voltage of 1.8–3.6 V DC, current consumption of ≤0.5 mA per microphone, operating temperature of -20 to 60 °C, storage temperature of -40 to 85 °C, ingress protection of IP54–IP65, and total weight of ≤5 g. These values are directory references and must be verified for the specific model and application. The array is designed to capture ambient sound accurately across a wide frequency range, which is critical for effective ANC. It is important to verify model-specific values and standards with the legal manufacturer or supplier before procurement or integration.

Working Principle

Multiple microphones capture ambient noise from different directions. The ANC processor analyzes phase and amplitude differences between microphone signals to identify noise patterns. It then generates inverse sound waves that destructively interfere with the original noise, effectively cancelling it out before it reaches the user's ears. The array's design ensures accurate capture of environmental sounds, which is essential for the processor to generate effective anti-noise signals.

Common Materials

MEMS microphone elements, PCB substrate, Copper wiring, Plastic housing

Technical Parameters

Parameter	Typical range	Notes & selection driver
Number of Microphones	2–6 pcs	More microphones improve noise cancellation but increase cost and power consumption.
Microphone Sensitivity	-42 ±3 dBV/Pa	Higher sensitivity (less negative) may cause clipping in loud environments.IEC 61094
Signal-to-Noise Ratio	≥62 dB	Lower SNR degrades ANC performance in quiet environments.IEC 60268
Frequency Response	20–20k Hz	Wide range ensures accurate ambient sound capture for ANC.IEC 60268
Total Harmonic Distortion	≤1 %	Higher THD introduces artifacts in ANC processing.IEC 60268
Acoustic Overload Point	≥115 dB SPL	Below this, distortion increases rapidly.IEC 60268
Supply Voltage	1.8–3.6 V DC	Typical for MEMS microphones; outside range may damage.
Current Consumption	≤0.5 mA	Per microphone; critical for battery life in wireless headphones.
Operating Temperature	-20–60 °C	Outside range may cause performance drift or failure.IEC 60068-2-1
Storage Temperature	-40–85 °C	Extreme storage conditions may affect solder joints.IEC 60068-2-2
Ingress Protection	IP54–IP65	Protects against dust and water splashes; higher is better for outdoor use.IEC 60529
Weight	≤5 g	Total weight of microphone array; affects headphone comfort.

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

MEMS Microphone Elements Part
Convert acoustic sound waves into electrical signals

Material: Silicon, metal membranes
Signal Processing Circuit
Amplify and condition microphone signals before ANC processing

Material: PCB, electronic components
Array Housing
Protect and position microphone elements in optimal configuration

Material: Plastic, acoustic mesh

Manufacturers of ANC Microphone Array

Manufacturer profiles associated with ANC Microphone Array.

Sourcing ANC Microphone Array from China?

Tell us your specification and target quantity — we will match it against manufacturer records and come back with the factories that fit.

Request manufacturers We manufacture this

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Frequently Asked Questions

What is the typical number of microphones in an ANC microphone array?

The number of microphones typically ranges from 2 to 6. More microphones can improve noise cancellation but also increase cost and power consumption. The exact count depends on the headphone design and target performance.

What standards are referenced for the microphone array parameters?

Parameters reference standards such as IEC 61094 for microphone sensitivity, IEC 60268 for signal-to-noise ratio, frequency response, total harmonic distortion, and acoustic overload point, and IEC 60068 for temperature testing. These standards are for verification; actual compliance must be confirmed with the manufacturer.

How does the microphone array affect battery life in wireless headphones?

Each microphone consumes up to 0.5 mA of current. With multiple microphones, the total current draw can impact battery life. Lower current consumption is critical for extending usage time in portable devices.

What is the operating temperature range for the microphone array?

The operating temperature range is -20 to 60 °C, and the storage temperature range is -40 to 85 °C. Exceeding these ranges may cause performance drift or failure, so it is important to ensure the headphones are used within these limits.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification

This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Buyer enquiry

Request manufacturing insight for ANC Microphone Array

Ask for use case, specification boundaries, supplier type, and RFQ preparation information for this product.

Where it goes: Straight to the CNFX editorial desk, and to the manufacturer if this product is linked to a claimed profile. Nothing is broadcast to a supplier list.
Your details stay here: We do not sell or rent enquiry data, and we do not add you to a mailing list. Used only to answer this request.
No commission, no middleman: CNFX is a directory. We take no cut of any order and never negotiate on a supplier's behalf.
What we don't claim: A listing is not an endorsement. Qualify every supplier and verify every figure yourself before ordering.

pressure:	Atmospheric pressure only
other spec:	Humidity: 10-90% RH non-condensing
temperature:	-20°C to +60°C (operating), -40°C to +85°C (storage)

Product Specifications

Industrial Ecosystem & Supply Chain Structure

Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

Compliance & Manufacturing Standards