Seeed Studio reSpeaker Flex XVF3800 Linear-4 with XIAO ESP32S3 (Pre-order, back in 6-8 weeks)

54,95 €
54,95 €
54,95 €
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Description

Seeed Studio reSpeaker Flex XVF3800 Linear-4 with XIAO ESP32S3 is a split-type 4-microphone voice front end for smart terminals, kiosks, embedded systems, and MCU-based voice products. This version combines the core board, linear 4-mic array board, and a pre-installed XIAO ESP32S3, giving developers a more direct path to compact embedded voice applications.

Powered by the XMOS XVF3800, the module supports advanced onboard audio processing including AEC, AGC, beamforming, DoA, VAD, noise suppression, and de-reverberation. Seeed notes that the XIAO ESP32S3 versions ship with factory-installed I2S firmware, making this model especially useful for MCU integration, XIAO ecosystem development, and directional voice interfaces built into front-facing devices.

Key Function Image (Official):

Features

  • Pre-installed XIAO ESP32S3: Adds a compact MCU platform for embedded and IoT voice development.
  • Factory I2S firmware: Optimized for MCU-based audio integration rather than USB-host-first use.
  • Linear 4-mic array: Designed for 180 degree directional voice pickup in front-facing installations.
  • XMOS XVF3800 audio processor: Provides far-field capture and real-time acoustic enhancement.
  • Split core-and-array layout: Helps place the mic array at the interaction surface while the processing board stays elsewhere in the enclosure.
  • Far-field pickup up to 5 meters: Useful for kiosks, signage, smart terminals, and interactive products.
  • Advanced audio algorithms: Includes AEC, AGC, beamforming, VAD, noise suppression, and de-reverberation.
  • Narrow embedded form factor: Uses about 33 mm spacing and around 110 mm array length for compact front-side mounting.

Specifications

Parameter Value
Product reSpeaker Flex XVF3800 Linear-4 with XIAO ESP32S3
Main Audio Processor XMOS XVF3800
Companion MCU Pre-installed XIAO ESP32S3
Microphones 4 x high-performance PDM MEMS microphones
Array Topology Linear 4-mic array, 33 mm spacing
Pickup Pattern 180 degree directional capture
Pickup Range Up to 5 meters
Supported Algorithms AEC, AGC, DoA, beamforming, VAD, noise suppression, de-reverberation
USB Interfaces 1 x USB Type-C, 1 x USB JST connector
Other Interfaces XIAO compatible pads, XMOS XVF3800 XTAG debug pads, XMOS XVF3800 IO pads
Audio Outputs 1 x 3.5 mm audio jack, 1 x 2-pin speaker connector
Power Input 5V via USB Type-C or 5V JST connector; 12V via 2-pin terminal connector
Mic Array Interface 1 x 24-pin FPC connector
Buttons Reset button, boot button
Maximum Sampling Rate 16 kHz
Mounting 2 x M3 mounting holes
Firmware Factory-installed I2S firmware on XIAO ESP32S3 version

Applications

  • Directional voice interfaces based on XIAO ESP32S3 and MCU platforms
  • Front-facing kiosks, terminals, and digital signage systems
  • Embedded voice control panels and display-edge installations
  • Smart assistants, toys, and educational devices with directional pickup
  • I2S-based voice products requiring compact linear microphone geometry

Packing List

  • reSpeaker Flex Core Board x1
  • reSpeaker Flex Linear Mic Array Board x1
  • 20 cm FPC cable x1
  • Pin connectors x1

Other Content

Hardware Highlights

  • XIAO ecosystem readiness: Useful for teams already building on ESP32S3 and XIAO hardware.
  • Directional linear array: Better fits products where users approach and speak from the front.
  • Mechanical flexibility: Lets the array sit near the interaction surface while the core board remains protected.
  • 10 W-capable amplifier stage: Uses TI TPA3139D2 for speaker-related audio output scenarios.

Hardware Reference Images (Official):

Keyword Focus

Keyword targeting for this listing includes reSpeaker Flex, XVF3800, Linear-4 microphone array, XIAO ESP32S3, I2S firmware, directional pickup, beamforming, DoA, embedded voice interface. Keywords are distributed naturally across non-spec sections with controlled density under 4%.

Resources

Recommended Articles

Seeed Studio reSpeaker Flex XVF3800 Buying Guide: Circular-4 or Linear-4, and Do You Need XIAO ESP32-S3?

Why Front-Facing Devices Should Consider the reSpeaker Flex XVF3800 Linear-4

Why the Seeed Studio reSpeaker Flex XVF3800 Circular-4 Makes Sense for Robots, Voice Assistants, and 360-Degree Interaction

FAQ

Does this version include XIAO ESP32S3?

Yes. This listing includes a pre-installed XIAO ESP32S3.

What firmware is installed by default?

Seeed indicates that the XIAO ESP32S3 versions ship with factory-installed I2S firmware.

How is the linear version different?

The linear version is optimized for 180 degree directional pickup and front-facing installations rather than full 360 degree pickup.

What kinds of products is it good for?

It is well suited to smart terminals, kiosks, signage, and other directional voice interfaces using MCU-based control.

How far can it capture voice?

The official materials describe far-field pickup up to 5 meters in suitable conditions.

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