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---
title: A316-HF-DAC-V1 USB Desktop High-Definition Audio Decoder Evaluation Board Specification
---
# A316-HF-DAC-V1 USB Desktop High-Definition Audio Decoder Evaluation Board Specification
<div class="grid cards" markdown>
- ![Phaten](../../../assets/images/logos/phaen-long.png "Phaten"){width="200"} ![XMOS](../../../assets/images/logos/xmos-long.png "XMOS"){width="200"} **Jointly Supported** <br> [XMOS Official Website: www.xmos.com](https://www.xmos.com) <br> [Phaten Audio Solutions Official Website: www.phaten-audio.com](https://www.phaten-audio.com)
</div>
<div class="result" markdown>
![A316-HF-DAC-V1 USB Desktop High-Definition Audio Decoder Evaluation Board](../../../assets/images/hifi_audio/PBAX316-90108MV1.png "A316-HF-DAC-V1 USB Desktop High-Definition Audio Decoder Evaluation Board"){align=right width=250}
## 1. Product Introduction
### 1.1 Product Description
A316-HF-DAC-V1 is an evaluation board specifically designed for USB desktop high-definition audio decoders, utilizing Phaten A316_1926V1 XU316 module design. The evaluation board supports USB, optical, coaxial, and I2S audio signal source inputs. Different audio input sources can be selected via buttons. The evaluation board uses an AKM4493SEQ DAC to output analog audio.
</div>
### 1.2 Evaluation Board Features
- **Supported Audio Interfaces**
- USB 2.0 (Full-speed and High-speed)
- I2S/TDM
- S/PDIF (Optical/Coaxial)
- Direct Stream Digital (DSD)
- **Supported Audio Sampling Rates**
- PCM: 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz, 352.8kHz, 384kHz, 705.6kHz, 768KHz
- DSD: DSD 64, DSD 128, DSD 256, DSD 512
- DOP: DOP 64, DOP 128, DOP256
- **System Compatibility**
- UAC 2.0 protocol, supports ASIO, compatible with various operating systems including Windows, Linux, Android, MAC OS, and IOS
### 1.3 Evaluation Board Hardware Interfaces
<figure markdown="span">
![A316-HF-DAC-V1 Hardware Interface Identification](../../../assets/images/hifi_audio/PBAX316-90108MV1_mark.png "A316-HF-DAC-V1 Hardware Interface Identification"){width="600"}
<figcaption></figcaption>
</figure>
| Interface | Function
| :---------------------| :----------
| Type-C | Connection to PC/mobile USB, USB audio input and 5V power supply
| S/PDIF | Optical/coaxial digital audio input
| I2S | I2S input
| Output | RCA left and right channel analog audio output
### 1.4 Evaluation Board Key Audio Specifications
**USB Audio Input with DAC AKM4493**
| Parameter | Value
| :-------------------------| :----------:
| THD+N RATIO | 108.232dB
| SIGNAL-NOISE RATIO | 120.012dB
| RCAOUT Crosstalk(10K) | 111.851dB
**S/PDIF Audio Input with DAC AKM4493**
| Parameter | Value
| :-------------------------| :----------:
| THD+N RATIO | 108.380dB
| SIGNAL-NOISE RATIO | 118.483dB
| RCAOUT Crosstalk(10K) | 115.302dB
### 1.5 Normal Operating Conditions
| Function | Minimum | Maximum | Unit |
|:--------------|:-------:|:-------:|:----:|
| Operating Temperature | 0 | 70 | °C |
| Operating Voltage | 4.5 | 5 | V |
### 1.8 Operating Current
| Operating Status | Average | Peak | Unit |
|:--------------|:-------:|:-----:|:----:|
| @5V | 250 | 300 | mA |

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title: A316-HF-DAC-V1 USB HiFi Audio Decoder Evaluation Board Design Files
hide:
-toc
login: true
---
# A316-HF-DAC-V1 USB HiFi Audio Decoder Evaluation Board Design Files
--8<-- "common/phaten_xmos_support_img.md"
| Type | Title | Download |
|:--------:|:------------------------|:------------------------|
| Schematic | :material-file-document-outline: A316-HF-DAC-V1 Design Schematic PDF | [:material-download:](/assets/download/a316_hf_dac_v1/a316_hf_dac_v1_sch_v1.0.pdf) |
| BOM | :material-file-document-outline: A316-HF-DAC-V1 BOM | [:material-download:](/assets/download/a316_hf_dac_v1/a316_hf_dac_v1_PCBA.xlsx) |
| Component Specifications | :material-file-document-outline: A316-HF-DAC-V1 Component Specifications | [:material-download:](/assets/download/a316_hf_dac_v1/元器件规格书.zip) |

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---
title: PBAX316-90108MV1 USB Desktop High-Definition Audio Decoder Evaluation Board Test Specifications
---
# PBAX316-90108MV1 USB Desktop High-Definition Audio Decoder Evaluation Board Test Specifications
<div class="grid cards" markdown>
- ![Phaten](../../../assets/images/logos/phaen-long.png "Phaten"){width="200"} ![XMOS](../../../assets/images/logos/xmos-long.png "XMOS"){width="200"} **Jointly Supported** <br> [XMOS Official Website: www.xmos.com](https://www.xmos.com) <br> [Phaten Audio Solutions Official Website: www.phaten-audio.com](https://www.phaten-audio.com)
</div>
## 1. USB INPUT 1KHz RCAOUT Test Specifications
### THD+N Ratio
![USB INPUT 1KHz RCAOUT THD+N Ratio](../../../../assets/images/hifi_audio/pbax316_90108mv1_usb_thdn.png)
### Frequency Response
![USB INPUT 1KHz RCAOUT Frequency Response](../../../../assets/images/hifi_audio/pbax316_90108mv1_usb_fre_res.png)
### THD+N Level
![USB INPUT 1KHz RCAOUT THD+N Level](../../../../assets/images/hifi_audio/pbax316_90108mv1_usb_thdn_level.png)
### SNR
![USB INPUT 1KHz RCAOUT SIGNAL-NOISE RATIO](../../../../assets/images/hifi_audio/pbax316_90108mv1_usb_snr.png)
### Signal-to-Noise and Distortion Ratio
![USB INPUT 1KHz RCAOUT SIGNAL-TO-NOISE AND DISTORTION RATIO](../../../../assets/images/hifi_audio/pbax316_90108mv1_usb_snad.png)
### CROSSTALK
![USB INPUT 1KHz RCAOUT CROSSTALK](../../../../assets/images/hifi_audio/pbax316_90108mv1_usb_cross.png)
### Noise Level
![USB INPUT 1KHz RCAOUT Noise Level](../../../../assets/images/hifi_audio/pbax316_90108mv1_usb_nl.png)
## 2. S/PDIF INPUT 1KHz RCAOUT Test Specifications
### THD+N Ratio
![S/PDIF INPUT 1KHz RCAOUT THD+N Ratio](../../../../assets/images/hifi_audio/pbax316_90108mv1_spdif_thdn.png)
### Frequency Response
![S/PDIF INPUT 1KHz RCAOUT Frequency Response](../../../../assets/images/hifi_audio/pbax316_90108mv1_spdif_fre_res.png)
### THD+N Level
![USB INPUT 1KHz RCAOUT THD+N Level](../../../../assets/images/hifi_audio/pbax316_90108mv1_spdif_thdn_level.png)
### SNR
![S/PDIF INPUT 1KHz RCAOUT SIGNAL-NOISE RATIO](../../../../assets/images/hifi_audio/pbax316_90108mv1_spdif_snr.png)
### Signal-to-Noise and Distortion Ratio
![S/PDIF INPUT 1KHz RCAOUT SIGNAL-TO-NOISE AND DISTORTION RATIO](../../../../assets/images/hifi_audio/pbax316_90108mv1_spdif_snad.png)
### CROSSTALK
![S/PDIF INPUT 1KHz RCAOUT CROSSTALK](../../../../assets/images/hifi_audio/pbax316_90108mv1_spdif_cross.png)
### Noise Level
![S/PDIF INPUT 1KHz RCAOUT Noise Level](../../../../assets/images/hifi_audio/pbax316_90108mv1_spdif_nl.png)

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---
title: A316-HF-DAC-V1 USB HiFi Audio Decoder Evaluation Board User Manual
---
# A316-HF-DAC-V1 USB HiFi Audio Decoder Evaluation Board User Manual
--8<-- "common/phaten_xmos_support_img.md"
<div class="result" markdown>
![A316-HF-DAC-V1 USB Desktop High-Definition Audio Decoder Evaluation Board](../../../assets/images/hifi_audio/a316_hf_dac_v1_mark.png "A316-HF-DAC-V1 USB Desktop High-Definition Audio Decoder Evaluation Board"){align=right width=300}
## I. Evaluation Board Hardware Specifications
- A316-HF-DAC-V1 is an evaluation board specifically designed for USB desktop high-definition audio decoders, utilizing Phaten A316_1926V1 XU316 module design. The evaluation board supports USB, optical, coaxial, and I2S audio signal source inputs. Different audio input sources can be selected via buttons.
- The evaluation board uses an AKM4493SEQ DAC to output analog audio.
</div>
=== "Key Features"
- **Supported Audio Interfaces**
- USB 2.0 (Full-speed and High-speed)
- I2S/TDM
- S/PDIF (Optical/Coaxial)
- Direct Stream Digital (DSD)
- **Supported Audio Sampling Rates**
- PCM: 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz, 352.8kHz, 384kHz, 705.6kHz, 768KHz
- DSD: DSD 64, DSD 128, DSD 256, DSD 512
- DOP: DOP 64, DOP 128, DOP256
- **System Compatibility**
- UAC 2.0 protocol, supports ASIO, compatible with various operating systems including Windows, Linux, Android, MAC OS, and IOS
=== "Hardware Interfaces"
| Interface | Function
| :---------------------| :----------
| Type-C | Connection to PC/mobile USB, USB audio input and 5V power supply
| S/PDIF | Optical/coaxial digital audio input
| I2S | I2S input
| Output | RCA left and right channel analog audio output
=== "Key Audio Specifications"
**USB Audio Input with DAC AKM4493**
| Parameter | Value
| :-------------------------| :----------:
| THD+N RATIO | 108.232dB
| SIGNAL-NOISE RATIO | 120.012dB
| RCAOUT Crosstalk(10K) | 111.851dB
**S/PDIF Audio Input with DAC AKM4493**
| Parameter | Value
| :-------------------------| :----------:
| THD+N RATIO | 108.380dB
| SIGNAL-NOISE RATIO | 118.483dB
| RCAOUT Crosstalk(10K) | 115.302dB
=== "Normal Operating Conditions"
| Function | Minimum | Maximum | Unit |
|:--------------|:-------:|:-------:|:----:|
| Operating Temperature | 0 | 70 | °C |
| Operating Voltage | 4.5 | 5 | V |
=== "Operating Current"
| Operating Status | Average | Peak | Unit |
|:--------------|:-------:|:-----:|:----:|
| @5V | 250 | 300 | mA |
## II. Evaluation Board Usage Instructions
### Installing Windows Driver
!!! note
- When users receive the evaluation board, if it is their first time using it and they are using a Windows system, they need to install the Windows driver before conducting evaluation tests.
- Windows 10 build 1809 and later versions already have a native USB UAC 2.0 driver. However, the native driver can only play audio with a maximum sampling rate of 384kHz. To evaluate 768kHz sampling rate and DSD formats, a third-party driver needs to be installed.
- Linux, Mac, and mobile devices do not require driver installation.
1. [Download the evaluation board driver](/assets/download/Thesycon-USB-Audio-Class-2_0-Evaluation-Driver-for-Windows_5_58_0.zip). After extraction, run XMOS_TUSBAudio_eval_v5.58.0_2023-06-29_setup.exe directly, then follow the default installation process.
2. Connect the evaluation board to a Windows computer via USB cable. Click the TUSB icon in the bottom right corner; if the USB Audio Device is displayed as shown in the right image, it indicates that the driver is running normally.
3. The evaluation board will be enumerated as USB 2.0 Audio Devices (UAC2.0) in Device Manager.
4. In the playback section, set USB 2.0 Audio Devices (UAC2.0) as the default device.
### Audio Evaluation
The evaluation board has three indicator lights: USB, OPT, and COX, representing USB, optical, and coaxial modes respectively.
- Short press the MODE button, and the USB indicator light turns on to play USB audio.
- Short press the MODE button, and the OPT indicator light turns on to play OPT audio.
- Short press the MODE button, and the COX indicator light turns on to play COX audio.

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---
title: A316-HF-I2S-V1 USB TO I2S HiFi Audio Converter Evaluation Board Specification
---
# A316-HF-I2S-V1 USB TO I2S HiFi Audio Converter Evaluation Board Specification
--8<-- "common/phaten_xmos_support_img.md"
<div class="result" markdown>
![A316-HF-I2S-V1 USB TO I2S HiFi Audio Converter Evaluation Board](/assets/images/hifi_audio/A316_hf_i2s_v1_v.png "A316-HF-I2S-V1 USB TO I2S HiFi Audio Converter Evaluation Board"){align=right width=150}
## 1. Product Introduction
### 1.1 Product Description
- A316-HF-I2S-V1 is designed based on the A316-Mini--V1 XU316 module, with **DAC removed**, focusing on **USB digital signal reception and conversion**
- A316-HF-I2S-V1 receives 2-channel USB input and outputs via I2S after decoding.
- All pins of XU316 are brought out on the evaluation board, allowing users to perform various development and debugging on XU316.
- A316-HF-I2S-V1 includes 2 low phase noise 45.1584MHz/49.152MHz active crystals
- Combined with different DACs, users can evaluate various USB HiFi applications with this board, suitable for audio device developers and Hi-Fi DIY enthusiasts to build high-fidelity audio decoding systems
</div>
### 1.2 Product Features
- **USB Interface Features**
- USB 2.0 (Full-speed and High-speed)
- USB Audio Class 1.0
- USB Audio Class 2.0
- USB Firmware Upgrade (DFU)
### 1.3 Specifications
| Specification Item | Description
| :------------------------| :----------
| Product Name | A316-HF-I2S-V1
| Product Description | USB TO I2S HiFi Audio Converter Evaluation Board Specification
| Core Chip |[XMOS XU316-1024-QF60B-C24](/assets/download/XMOS-XU316-1024-QF60B-C24.pdf)|
| Clock |48.152MHz/49.152MHz Active Crystal Clock|
| Package Type | Pin Header
| Environmental Statement | All hardware components fully comply with EU RoHS Directive
### 1.4 Absolute Electrical Parameters
| Parameter | Minimum | Maximum | Unit |
|:----------------------------------|:-------:|:-------:|:----:|
| Storage Temperature | -40 | 125 | °C |
| Supply Voltage | -0.5 | 5.63 | V |
| ESD Voltage (Human Model) TAMB-25°C | -2 | 2 | KV |
| ESD Voltage (Machine Model) TAMB-25°C | -500 | 500 | V |
### 1.5 Normal Operating Conditions
| Function | Minimum | Typical | Maximum | Unit |
|:---------------------|:-------:|:-------:|:-------:|:----:|
| Operating Temperature| 0 | - | 70 | °C |
| Operating Voltage | 4.95 | 5.0 | 5.63 | V |
### 1.6 Operating Current
| Operating Status | Average | Peak | Unit |
|:-----------------|:-------:|:----:|:----:|
| Active@5V | 90 | 150 | mA |
## 2. Pin Definitions
### 2.1 Pin Layout
<figure markdown="span">
![A316-HF-I2S-V1 Pin Diagram](/assets/images/hifi_audio/A316_hf_i2s_v1_pcb.png "A316-HF-I2S-V1 Pin Diagram"){width=600}
<figcaption></figcaption>
</figure>
### 2.2 Pin Description
#### Audio Output Interface
| No. | Name | Type | Function |
| :------: | :------: | :------: | :------ |
| 1 | 3.3V | P | Outputs 3.3V high level when USB cable is inserted |
| 2 | XOD00 | I/O | I2C CLK |
| 3 | DATA | I/O | I2S(Master) DATA |
| 4 | BCLK | I/O | I2S(Master) BCLK |
| 5 | LRCK | I/O | I2S(Master) LRCK |
| 6 | MCLK | I/O | I2S(Master) MCLK, 49.152Mhz or 45.1584Mhz |
| 7 | DSDOE | I/O | Outputs 3.3V high level when DSD stream is detected |
| 8 | GND | P | Ground |
| 9 | 3V3 | P | 3.3V power output |
| 10 | 3V3 | P | 3.3V power output |
| 11 | XOD30 | I/O | DAC MUTE, outputs high level during sampling rate change or DSD mode change |
| 12 | X0D11 | I/O | I2C DATA |
| 13 | GND | P | Ground |
| 14 | GND | P | Ground |
| 15 | GND | P| Ground |
| 16 | X1D00 | I/O | Multi-function GPIO |
| 17 | X0D40 | I/O | Multi-function GPIO |
| 18 | X0D41 | I/O | Multi-function GPIO |
| 19 | X0D42 | I/O | Multi-function GPIO |
| 20 | X0D43 | I/O | Multi-function GPIO |
#### Expansion Interface 1
| No. | Name | Type | Function |
| :------: | :------: | :------: | :------ |
| 1 | X1D16 | I/O | Multi-function GPIO |
| 2 | X1D18 | I/O | Multi-function GPIO |
| 3 | X1D22 | I/O | Multi-function GPIO |
| 4 | X0D37 | I/O | Multi-function GPIO |
| 5 | X1D13 | I/O | Multi-function GPIO |
| 6 | X1D17 | I/O | Multi-function GPIO |
| 7 | X1D19 | I/O | Multi-function GPIO |
| 8 | GND | P | Ground |
#### Expansion Interface 2
| No. | Name | Type | Function |
| :------: | :------: | :------: | :------ |
| 1 | X1D11 | I/O | Module clock divider output |
| 2 | X1D09 | I/O | Module clock divider output |
| 3 | X1D34 | I/O | Module clock divider output |
| 4 | MCLK/2 | I/O | MCLK/2 24.576Mhz or 22.5792Mhz|
| 5 | X1D10 | I/O | Module clock divider output |
| 6 | X1D01 | I/O | Module clock divider output |
| 7 | X0D31 | I/O | Module clock divider output |
| 4 | GND | P | Ground |
#### Expansion Interface 3
| No. | Name | Type | Function |
| :------: | :------: | :------: | :------ |
| 1 | GND | P | Module ground |
| 2 | X0D33 | I/O | Multi-function GPIO |
| 3 | X0D32 | I/O | Multi-function GPIO |
| 4 | X0D39 | I/O | Multi-function GPIO |
#### DEBUG Interface
| No. | Name | Type | Function |
| :------: | :------: | :------: | :------ |
| 1 | GND | P | Module ground |
| 2 | 1.8V | P | 1.8V power supply |
| 3 | TCK | I | Test clock |
| 4 | TDO | I/O | Test data output |
| 5 | 0.9V | P | 0.9V power supply |
| 6 | RST | I | Reset signal |
| 7 | TMS | I/O | Test mode selection |
| 8 | TDI | I/O | Test data input |
## 3. Module Dimensions and PCB Package Diagram
### 3.1 Module Dimensions
PCB Dimensions: 68±0.3(L)X31±0.3(W)X1.6±0.1(H)
### 3.2 Module Package Diagram
<figure markdown="span">
![A316-HF-I2S-V1 Package Diagram](/assets/images/hifi_audio/A316_hf_i2s_v1_size.png "A316-HF-I2S-V1 Package Diagram"){width=600}
<figcaption></figcaption>
</figure>
## 4. Product Packaging Information
Tray + Outer Box Packaging
## 5. Recommended Reflow Temperature Profile
<figure markdown="span">
![Recommended Reflow Temperature Profile](/assets/images/hifi_audio/module_smt_temp.png "Recommended Reflow Temperature Profile"){width=500}
<figcaption></figcaption>
</figure>
## 6. Revision History
| Version | Date | Description | Revised by |
|:--------|:-----------|:-----------------------------------|:--------------|
| V1.0 | 2025-05-07 | Initial Release | |
| | | | |

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---
title: AI Microphone Noise Reduction Effect Demonstration
status: new
---
# AI Microphone Noise Reduction Effect Demonstration
This demonstration document **showcases the noise reduction capabilities of AI microphones in noisy office environments under different parameter settings**. Each scenario provides online playback functionality for audio files, allowing you to intuitively experience the sound quality differences under various parameter settings.
## 1. 11ms -200dB AI Noise Reduction Effect
### Effect Description
- Delay Time: 11 milliseconds
- Noise Reduction Depth: -200dB
- Characteristics: Ultra-low latency, deep noise reduction, suitable for scenarios requiring high real-time performance
### Audio Demonstration
- Left Channel (After Noise Reduction): [Play](/assets/images/aimic/auido-img/11ms_200dB_noise_reduction_L.wav)
- Right Channel (Original Audio): [Play](/assets/images/aimic/auido-img/11ms_200dB_noise_reduction_R.wav)
- Audio Source File: [Download](/assets/images/aimic/auido-img/11ms_200dB_noise_reduction_source.aup3)
### Effect Comparison
![11ms -200dB Noise Reduction Comparison](/assets/images/aimic/auido-img/11ms_200dB_comparison.png)
## 2. 50ms -200dB AI Noise Reduction Effect
### Effect Description
- Delay Time: 50 milliseconds
- Noise Reduction Depth: -200dB
- Characteristics: Medium latency, deep noise reduction, suitable for scenarios requiring high audio quality
### Audio Demonstration
- Left Channel (After Noise Reduction): [Play](/assets/images/aimic/auido-img/50ms_200dB_noise_reduction_L.wav)
- Right Channel (Original Audio): [Play](/assets/images/aimic/auido-img/50ms_200dB_noise_reduction_R.wav)
- Audio Source File: [Download](/assets/images/aimic/auido-img/50ms_200dB_noise_reduction_source.aup3)
### Effect Comparison
![50ms -200dB Noise Reduction Comparison](/assets/images/aimic/auido-img/50ms_200dB_comparison.png)
## 3. 11ms -50dB AI Noise Reduction Effect
### Effect Description
- Delay Time: 11 milliseconds
- Noise Reduction Depth: -50dB
- Characteristics: Ultra-low latency, moderate noise reduction, preserves more ambient sound
### Audio Demonstration
- Left Channel (After Noise Reduction): [Play](/assets/images/aimic/auido-img/11ms_50dB_noise_reduction_L.wav)
- Right Channel (Original Audio): [Play](/assets/images/aimic/auido-img/11ms_50dB_noise_reduction_R.wav)
- Audio Source File: [Download](/assets/images/aimic/auido-img/11ms_50dB_noise_reduction_source.aup3)
### Effect Comparison
![11ms -50dB Noise Reduction Comparison](/assets/images/aimic/auido-img/11ms_50dB_comparison.png)
## 4. 50ms -50dB AI Noise Reduction Effect
### Effect Description
- Delay Time: 50 milliseconds
- Noise Reduction Depth: -50dB
- Characteristics: Medium latency, moderate noise reduction, balances audio quality and noise reduction effect
### Audio Demonstration
- Left Channel (After Noise Reduction): [Play](/assets/images/aimic/auido-img/50ms_50dB_noise_reduction_L.wav)
- Right Channel (Original Audio): [Play](/assets/images/aimic/auido-img/50ms_50dB_noise_reduction_R.wav)
- Audio Source File: [Download](/assets/images/aimic/auido-img/50ms_50dB_noise_reduction_source.aup3)
### Effect Comparison
![50ms -50dB Noise Reduction Comparison](/assets/images/aimic/auido-img/50ms_50dB_comparison.png)
## 5. 11ms -50dB AI Noise Reduction + Reverb Singing Effect
### Effect Description
- Delay Time: 11 milliseconds
- Noise Reduction Depth: -50dB
- Characteristics: Ultra-low latency, moderate noise reduction, added reverb effect, suitable for singing scenarios
### Audio Demonstration
- Left Channel (After Noise Reduction): [Play](/assets/images/aimic/auido-img/11ms_50dB_reverb_singing_L.wav)
<!-- - Right Channel (Original Audio): [Play](/assets/images/aimic/auido-img/11ms_50dB_reverb_singing_R.mp3) -->
- Audio Source File: [Download](/assets/images/aimic/auido-img/11ms_50dB_reverb_singing_source.aup3)
<!-- ### Effect Comparison
![11ms -50dB Noise Reduction + Reverb Effect Comparison](/assets/images/aimic/auido-img/11ms_50dB_reverb_comparison.png) -->
## Instructions for Use
1. All audio files support online playback
2. Headphones or professional audio equipment are recommended for optimal listening experience
3. Audio file format is WAV, with 44.1kHz sampling rate and 320kbps bit rate
4. Effect comparison images show frequency spectrum analysis before and after noise reduction
5. Source file recording tool - [Download](/assets/images/aimic/auido-img/Audacity64位_3.1.3.0.exe)
## Technical Parameter Description
- Delay Time: Refers to the time required for audio processing; 11ms is ultra-low latency, 50ms is medium latency
- Noise Reduction Depth: Indicates the intensity of noise reduction; -200dB is deep noise reduction, -50dB is moderate noise reduction
- Reverb Effect: Reverb parameters specially optimized for singing scenarios, providing a natural sense of space
## Application Scenario Recommendations
1. 11ms -200dB: Suitable for game streaming, video conferences, and other scenarios requiring high real-time performance
2. 50ms -200dB: Suitable for professional recording, music production, and other scenarios requiring high audio quality
3. 11ms -50dB: Suitable for daily calls, live streaming, and other scenarios where preserving some ambient sound is desired
4. 50ms -50dB: Suitable for podcast recording, audiobooks, and other scenarios requiring balanced audio quality and noise reduction
5. 11ms -50dB+Reverb: Suitable for singing, voice acting, and other scenarios requiring artistic effect processing

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# AI Noise-Canceling Microphone
## I. **Control Precautions**
1. Before powering on a new board, connect an ammeter to check if the overall current is normal to avoid burning the chip due to excessive current.
2. When testing channel microphone audio, the MIC-A and MIC-B switches can only be tested by alternating them. Enabling both simultaneously will result in reduced volume.
![001.png](/assets/images/aimic/001.png){width="200" }
!!! warning "3. Caution"
When connecting a dynamic microphone to the XLR channel, ensure the +48V switch is turned off to prevent damage to the microphone.
4. The 10dB, 20dB, and 30dB switches should be toggled individually to achieve the corresponding gain values. Only one switch should be enabled at a time, with the other two disabled. For example, when enabling 10dB, the other two must be disabled.
![002.png](/assets/images/aimic/002.png){width="400" }
5. The white power indicator light next to the USB port is excessively bright and may cause eye strain. The resistor can be changed to 1.2-1.5K to reduce brightness.
![003.png](/assets/images/aimic/003.png){width="400"}
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## II. Button Description
![whiteboard_exported_image.png](/assets/images/aimic/whiteboard_exported_image-en.png){width="500" }
## III. PC Control Software Usage Instructions
You can set up the required scenario in the software. After opening, there will be an operation interface and a CMD window displaying logs.
![004.png](/assets/images/aimic/004.png)
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- ![005.png](/assets/images/aimic/005.png){width="400" }
- ![006.png](/assets/images/aimic/006.png){width="400" }
- ![007.png](/assets/images/aimic/007.png){width="400" }
</div>
After adjusting the settings, click "Update Parameters in Real-time" in the lower left corner to apply changes to the device. If the settings are applied correctly, logs will be displayed.
![008.png](/assets/images/aimic/008.png)
After configuration, if you need to save the settings, click "Save Parameters to PC"