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en/docs/dev_doc/evb/a316_ls_mic_v2/index.md
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---
title: A316-LS-MIC-V2 USB AI Live Streaming Microphone EVB
description: A316-LS-MIC-V2 is a professional USB AI live streaming microphone evaluation board supporting 192KHz/24bit high-definition audio sampling with built-in AI noise reduction algorithm and comprehensive audio effects processing system for professional live streaming users.
keywords: USB AI microphone, live streaming microphone, AI noise reduction, high-definition audio sampling, audio effects processing, XU316 chip
title: A316-LS-MIC-V2 USB AI Live Streaming Microphone Evaluation Board
description: A316-LS-MIC-V2 is a professional USB AI live streaming microphone evaluation board supporting 192KHz/24bit high-definition audio sampling, built-in AI noise reduction algorithm, equipped with comprehensive audio effect processing system, providing high-quality recording experience for professional live streaming users.
keywords: USB AI microphone, live streaming microphone, AI noise reduction, high-definition audio sampling, audio effect processing, XU316 chip
hide:
-toc
login: true
@@ -13,7 +13,7 @@ login: true
"@context": "https://schema.org",
"@type": "Product",
"name": "A316-LS-MIC-V2 USB AI Live Streaming Microphone Evaluation Board",
"description": "A316-LS-MIC-V2 is a professional USB AI live streaming microphone evaluation board supporting 192KHz/24bit high-definition audio sampling with built-in AI noise reduction algorithm and comprehensive audio effects processing system for professional live streaming users.",
"description": "A316-LS-MIC-V2 is a professional USB AI live streaming microphone evaluation board supporting 192KHz/24bit high-definition audio sampling, built-in AI noise reduction algorithm, equipped with comprehensive audio effect processing system, providing high-quality recording experience for professional live streaming users.",
"brand": {
"@type": "Brand",
"name": "Phaten Audio"
@@ -32,7 +32,7 @@ login: true
<div class="card-wide" markdown>
# A316-LS-MIC-V2
__USB Live Streaming Microphone Evaluation Board with AI Noise Reduction__
__USB AI Live Streaming Microphone Evaluation Board with AI Noise Reduction__
</div>
</div>
@@ -42,9 +42,9 @@ __USB Live Streaming Microphone Evaluation Board with AI Noise Reduction__
![A316-LS-MIC-V2 USB AI Live Streaming Microphone Evaluation Board](/assets/images/usb_ai_mic/ai麦克风-大.png "A316-LS-MIC-V2 USB AI Live Streaming Microphone Evaluation Board - Professional AI Noise Reduction Live Streaming Microphone"){align=right width=400}
- A316-LS-MIC-V2 is a large-format (70x150mm) USB AI live streaming microphone evaluation board featuring XU316 chip design, providing superior recording experience for professional live streaming users.
- The evaluation board supports high-definition audio sampling with built-in AI noise reduction algorithm that effectively filters environmental noise while maintaining vocal clarity.
- Equipped with comprehensive audio effects processing system including Compressor, Reverb effects, and 8-band EQ adjustment.
- A316-LS-MIC-V2 is a large-size (70x150mm) USB AI live streaming microphone evaluation board using XU316 chip design, providing better recording experience for professional live streaming users
- The evaluation board supports high-definition audio sampling, built-in AI noise reduction algorithm, effectively filtering environmental noise while maintaining voice clarity
- Equipped with comprehensive audio effect processing system, including Compressor, Reverb effects, and 8-band EQ adjustment
<br>
<br>
[:shopping_cart: Purchase Sample](https://detail.1688.com/offer/915688698243.html?_t=1747013479504&spm=a2615.7691456.co_1_0_wangpu_score_0_0_0_0_0_0_0000_0.0){.md-button }
@@ -56,25 +56,25 @@ __USB Live Streaming Microphone Evaluation Board with AI Noise Reduction__
=== "Key Features"
- Supports 48KHz-192KHz/24bit high-definition audio sampling
- SNR>101dB
- Intelligent AI noise reduction effectively filters background noise
- Comprehensive audio effects processing system (Limiter/Compressor/Reverb/10-band EQ)
- Intelligent AI noise reduction function, effectively filters background noise
- Comprehensive audio effect processing system (Limiter/Compressor/Reverb/10-band EQ)
- Automatic gain control function
- USB Type-C interface, 3.5mm headphone and microphone jacks, macaron wired microphone interface
- RGB dynamic lighting effects (static/dynamic/music responsive)
- USB Type-C interface, 3.5mm headphone and microphone interfaces, XLR wired microphone interface
- RGB dynamic lighting effects (static/dynamic/music rhythm)
=== "Technical Documentation"
| Type | Title | Download |
|:--------:|:------------------------|:------------------------|
| User Manual | [:material-file-document-outline: A316-LS-MIC-V2 User Guide](./user_guide.md) | |
| AI Noise Reduction Performance | [:material-file-document-outline: A316-LS-MIC-V2 Noise Reduction Effects](./dnr_effect.md) | |
| Datasheet | [:material-file-document-outline: A316-CODEC-V1 USB AI Noise Reduction Microphone Module Datasheet](../../datasheet/modules/a316_codec_v1_datasheet.md) | |
| AI Noise Reduction Effect | [:material-file-document-outline: A316-LS-MIC-V2 Noise Reduction Effect](./dnr_effect.md) | |
| Product Datasheet | [:material-file-document-outline: A316-CODEC-V1 USB AI Noise Reduction Microphone Module Datasheet](../../datasheet/modules/a316_codec_v1_datasheet.md) | |
=== "Firmware List"
| Firmware Name | Firmware Version | Release Date | Firmware Description | Download |
|:--------------------|:------------------------------------|:----------------|:--------------------|:--------------------|
| USB AI Microphone Default Firmware | 1.0.0 | July 14, 2025 | Stereo, recording and playback capable. Compatible with desktop debug software (250617) | <a href="javascript:void(0);" onclick="checkLogin('/assets/download/firmware/xmos_evb_standard_bin/mic_v2_reverb/factory_mic_v2_6001.bin')">:material-download:</a> |
| USB AI Microphone Default Firmware | 1.0.0 | 2025-07-14 | Stereo, recording and playback capable. Compatible with desktop debug software (250617) | <a href="javascript:void(0);" onclick="checkLogin('/assets/download/firmware/xmos_evb_standard_bin/mic_v2_reverb/factory_mic_v2_6001.bin')">:material-download:</a> |
@@ -82,13 +82,13 @@ __USB Live Streaming Microphone Evaluation Board with AI Noise Reduction__
| Type | Description | Download |
|:--------:|:------------------------|:------------------------|
| Debug Tools | AI Microphone Debug Tools |[:material-toolbox: Debug Tools](../../../services_support/tools_software/index.md) |
| Debug Tools | AI Microphone Debug Tool |[:material-toolbox: Debug Tools](../../../services_support/tools_software/index.md) |
## Supported Products
<div class="grid cards" markdown>
- :material-developer-board: __USB Live Streaming Microphone Evaluation Board with AI Noise Reduction__
- :material-developer-board: __USB AI Live Streaming Microphone Evaluation Board with AI Noise Reduction__
---

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# OT82111_VC1 Firmware Test Guide
## I. Block Diagram Overview
## 1. Block Diagram Introduction
<div class="result" markdown>
This guide introduces the test methods and related instructions for OT82111_VC1 firmware on the A316-LS-MIC-V2 evaluation board.![OT82111_VC1 Block Diagram](/assets/images/hifi_audio/ot82111_diagram.png "OT82111_VC1 Block Diagram"){ width=450}
@@ -13,11 +13,11 @@ This guide introduces the test methods and related instructions for OT82111_VC1
---
## II. A316-LS-MIC-V2 Default Input and A316 Output
## 2. A316-LS-MIC-V2 Default Input and A316 Output
- A316-LS-MIC-V2 default input to A316 is fixed at 24-bit 48KHz.
- Regardless of the sample rate selected during recording, when the USB device outputs to the 3.5mm audio interface (headphone test), the audio will be converted to 24-bit 48KHz for playback.
- The audio format output from the USB device to the playback device is 24-bit 48KHz and cannot be changed.
- A316-LS-MIC-V2 default input to A316 is fixed at 24-bit 48KHz
- Regardless of the sampling rate selected during recording, when the USB device outputs to the 3.5mm audio interface (headphone test), the audio will be converted to 24-bit 48KHz for playback
- USB device output to playback device audio format is 24-bit 48KHz and cannot be changed
![Input/Output Diagram 1](/assets/images/evb/a316_mic_v2/otg_firmware_test_guide/shur09.png)
@@ -25,21 +25,21 @@ This guide introduces the test methods and related instructions for OT82111_VC1
---
## III. I2S Output Sample Rate Acquisition and Switching
## 3. I2S Output Sampling Rate Acquisition and Switching
The A316-LS-MIC-V2 evaluation board supports switching between different input sample rates via buttons, with audio output normally through the 3.5mm interface (headphone test).
Switchable sample rates include: 44.1KHz, 48KHz, 88.2KHz, 96KHz, 176.4KHz, 192KHz.
For precise sample rate measurement, use a logic analyzer to capture waveforms (actual measurements may have some margin of error).
The A316-LS-MIC-V2 evaluation board supports switching between different input sampling rates via button, and audio will be output normally through the 3.5mm interface (headphone test).
Switchable sampling rates include: 44.1KHz, 48KHz, 88.2KHz, 96KHz, 176.4KHz, 192KHz.
For precise sampling rate measurement, a logic analyzer can be used to capture waveforms (actual measurement may have some error).
### 1. Sample Rate Switching Button Location
### 1. Button Location for Switching Sampling Rates
![Sample Rate Switching Button](/assets/images/evb/a316_mic_v2/otg_firmware_test_guide/qiehuan01.PNG)
![Sampling Rate Switch Button](/assets/images/evb/a316_mic_v2/otg_firmware_test_guide/qiehuan01.PNG)
### 2. A316-LS-MIC-V2 Waveform Capture Wiring Method
### 2. A316-LS-MIC-V2 Waveform Capture Connection Method
![Waveform Capture Wiring](/assets/images/evb/a316_mic_v2/otg_firmware_test_guide/02zhuaqu.PNG)
![Waveform Capture Connection](/assets/images/evb/a316_mic_v2/otg_firmware_test_guide/02zhuaqu.PNG)
### 3. Recording and Waveforms at Different Sample Rates (All 24bit)
### 3. Recording and Waveforms at Different Sampling Rates (All 24-bit)
- **44.1KHz:**
![44.1KHz Waveform 1](/assets/images/evb/a316_mic_v2/otg_firmware_test_guide/luyin03.PNG)

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--8<-- "common/phaten_xmos_support_img.md"
# AI Noise Reduction Microphone
## I. **Control Precautions**
1. Before powering on a new board, connect an ammeter to check if the overall current is normal to prevent excessive current from damaging the chip.
## 1. **Control Precautions**
1. Before powering on a new board, connect an ammeter to check if the system current is normal to avoid burning the chip due to high current.
2. The MIC-A and MIC-B switches for testing microphone audio channels can only be switched alternately. Enabling both simultaneously will cause reduced volume.
2. MIC-A and MIC-B channel microphone audio switches can only be alternately switched for testing. Opening both simultaneously will cause the volume to decrease.
![001.png](/assets/images/aimic/001.png){width="200" }
!!! warning "3. Important Note"
!!! warning "3. Important"
When connecting a dynamic microphone to the XLR channel, turn off the +48V switch to prevent damage to the microphone.
For XLR channel connected to dynamic microphones, turn off the +48V switch to avoid damaging the microphone.
4. The 10dB, 20dB, and 30dB switches should be enabled alternately according to the marked gain value. Only one marked switch can be enabled at a time; the other two must be disabled. For example, if enabling 10dB, the other two must be disabled.
4. The 10dB, 20dB, 30dB switches operate alternately to enable the corresponding gain value. Only one switch can be enabled at a time, the other two must be closed. For example, when enabling 10dB, the other two must be closed.
![002.png](/assets/images/aimic/002.png){width="400" }
5. The white power indicator light next to the USB port is too bright and glaring. The resistor can be changed to 1.2-1.5K.
5. The white power indicator LED next to the USB is too bright. The resistor can be changed to 1.2-1.5K to reduce brightness.
![003.png](/assets/images/aimic/003.png){width="400"}
[//]: # ({width="400" style="transform: rotate&#40;90deg&#41;;margin-left:150px;"})
## II. Button Description
## 2. Button Description
![whiteboard_exported_image.png](/assets/images/aimic/whiteboard_exported_image-en.png){width="500" }
## III. PC Control Software Usage
## 3. PC Control Software Usage
Configure the required scenario settings in the software. After opening, an operation interface and a log display cmd window will appear.
The software can be used to configure the required scenarios. After opening, there will be an operation interface and a log display cmd window.
![004.png](/assets/images/aimic/004.png)
@@ -42,11 +42,11 @@ Configure the required scenario settings in the software. After opening, an oper
- ![007.png](/assets/images/aimic/DSP_Controller3.jpg){width="400" }
</div>
After adjusting settings, click "Load" in the lower left corner to apply changes to the device. If settings are applied successfully, log output will be displayed.
After adjusting the settings, click "Load" at the bottom left to apply the changes to the device. If the settings are successful, logs will be printed.
![008.png](/assets/images/aimic/008.png)
After configuring settings, if you need to save them, click "Save".
After configuration, if you need to save the settings, click "Save".
## Inquiries and Feedback
<details>