GM68311_VC1 48KHz/16bit Virtual 7.1 Gaming Sound Card¶
1. Introduction¶
1.1 Product Description¶
The GM68311_VC1 is a high-performance audio processor specifically developed for the gaming market, supporting PCM 48KHz/16bit format to provide immersive audio experiences for gamers. This product is developed based on the A316-Mini-V1 module and is specifically optimized for gaming audio processing.
The GM68311_VC1 supports USB Audio Class 1.0 interface, providing USB input to I²S output transmission functionality, while also supporting I²S input to USB output bidirectional transmission to meet gaming audio playback and communication requirements.
The GM68311_VC1 incorporates advanced AI DNR deep learning noise reduction technology, achieving 50ms low latency while perfectly eliminating keyboard, mouse, and various other non-stationary noises, with noise cancellation specifically targeting human voice, making it particularly suitable for gaming scenarios.
The GM68311_VC1 features built-in SA Virtual 7.1 algorithm that can synthesize 7.1 channels into 2-channel output through algorithms optimized for human hearing, allowing users to experience full surround sound effects and sound localization through headphones.
Compatible with USB Audio Class standards, supporting multiple operating systems including Windows, Linux, Android, macOS, and iOS.
1.2 Product Features¶
Gaming Audio Enhancement Features
- SA Virtual 7.1 Algorithm
- Converts 7.1 channels to 2-channel output through specialized algorithms
- Optimized for human hearing, providing 360-degree full surround sound and sound localization effects
- AI DNR Deep Learning Noise Reduction Technology
- Deep learning-based noise elimination model with 50ms low latency
- Perfectly eliminates keyboard, mouse, and various other non-stationary noises, with noise cancellation specifically for human voice
- Particularly suitable for gaming communication scenarios
- FPS Gaming Enhancement Mode
- Specifically optimized for first-person shooter games
- Provides more precise spatial directional sensing
- Enhances critical audio effects such as footsteps and gunshots
Audio Performance Features
- Supports 48kHz/16bit PCM format, specifically optimized for gaming scenarios
- Supports bidirectional audio transmission (playback and recording)
- Low-latency audio processing ensures smooth gaming experience
Interface Support Features
- Multiple Digital Interface Support
- Supports USB audio input
- Supports I²S master mode audio output
- Supports I²S master mode audio input to USB output (bidirectional transmission)
- Supports button and LED control
USB Functionality Features
- USB Interface Features
- Supports UAC 1.0
- Supports firmware upgrade via USB
System Compatibility
- UAC 1.0 protocol
- Supports multiple operating systems such as Windows, Linux, Android, macOS, and iOS, as well as gaming consoles like PS5 and SWITCH
Codec Support
- Supports TLV320AIC3204
1.3 Application Scenarios¶
- Gaming Headset
- Gaming Microphone
- Gaming Sound Card
- Esports Audio Equipment
1.4 Product Functional Block Diagram¶
1.5 Ordering Information¶
| PRODUCT | ORDERING NUMBER | PACKAGE BODY | SIZE (NOM) | Hardware Model | Comments |
|---|---|---|---|---|---|
| GM68311_VC1 | GM68311-VC1 | SMT LGA-52 | 13x13mm | A316-Mini-V1 | Supports Virtual 7.1 and AI Noise Reduction |
2. Modes and Performance Specifications¶
2.1 Supported Functional Modes¶
The GM68311_VC1 supports multiple audio processing functional modes. Users can flexibly configure audio effect processing and noise reduction functions through mode switching buttons. The system supports independent control of audio effect modes and noise reduction modes, with both functions capable of simultaneous activation to provide the optimal gaming audio experience.
- Audio Effect Mode Control (Mode Switch Button Single Press Operation)
When the mode switch button is pressed once, the system will cycle through three audio effect modes, with each button press switching to the next mode.
| Mode Number | Audio Effect Mode Name | Function Description |
|---|---|---|
| 1 | No Audio Effects Mode | Audio signal undergoes no audio effect processing, maintaining original audio output |
| 2 | FPS Mode | Activates FPS gaming enhancement algorithm, strengthening critical audio effects such as footsteps and gunshots, improving spatial directional sensing |
| 3 | Virtual 7.1 Mode | Activates SA Virtual 7.1 algorithm, converting 7.1 channel audio to 2-channel output, providing 360-degree full surround sound and sound localization effects |
- Noise Reduction Mode Control (Mode Switch Button Long Press Operation)
When the mode switch button is pressed and held, the system will cycle between two noise reduction modes.
| Mode Number | Noise Reduction Mode Name | Function Description |
|---|---|---|
| 1 | No Noise Reduction | Disables AI noise reduction function, maintaining original microphone input signal |
| 2 | AI DNR Noise Reduction | Activates AI deep learning noise reduction technology, intelligently eliminating sudden noises from keyboard, mouse, etc., while preserving clear human voice |
- Mode Combination Description
Audio effect modes and noise reduction modes can be activated simultaneously, providing users with a complete gaming audio solution. For example, users can simultaneously activate Virtual 7.1 mode and AI DNR noise reduction function to enjoy immersive surround sound effects while ensuring microphone communication clarity.
2.2 Supported Audio Formats and Sample Rates¶
| Audio Format | Supported Sample Rates | Bit Depth |
|---|---|---|
| PCM | 48kHz | 16bit |
2.3 AI DNR Noise Reduction Parameters¶
- Latency: 50ms
- Maximum Noise Reduction Strength: 35dB
2.4 Supported Codec¶
- TLV320AIC3204
3. Pin Configuration and Functions¶
3.1 GM68311_VC1 Pin Layout¶
3.2 GM68311_VC1 Pin Description¶
| Pin Number | Name | Type | Function |
|---|---|---|---|
| 1 | 3.3V | P | Module 3.3V power supply |
| 2 | X1D13 | I | Audio effect mode switch button input, active low |
| 3 | X1D16 | I | Virtual 7.1 mode LED indicator input, active low |
| 4 | GND | P | Module ground |
| 5 | X1D17 | I | AI DNR LED indicator input, active low |
| 6 | X1D18 | I/O | NC |
| 7 | X1D19 | I/O | NC |
| 8 | X1D22 | I | FPS mode LED indicator input, active low |
| 9 | X0D29 | I | MIC_VOL-, microphone volume decrease, active low |
| 10 | X0D35 | I/O | NC |
| 11 | X0D36 | I/O | NC |
| 12 | X0D37 | I/O | I2C_SCL, connects to CODEC I2S_SCL |
| 13 | X0D38 | I/O | I2C_SDA, connects to CODEC I2S_SDA |
| 14 | X0D40 | O | CODEC_RST, active low |
| 15 | X0D39 | I/O | NC |
| 16 | X0D42 | I/O | NC |
| 17 | X0D41 | I/O | NC |
| 18 | X0D43 | I/O | Independent headphone amplifier MUTE output, active low |
| 19 | X1D34 | O | I2S_DOUT, connects to CODEC I2S_DIN |
| 20 | GND | P | Module ground |
| 21 | X0D30 | I | MUTE, MIC mute button input, active low |
| 22 | X0D31 | I | MIC_VOL+, microphone volume increase, active low |
| 23 | X0D32 | I | Headphone_VOL-, playback volume decrease, active low |
| 24 | X0D33 | I | Headphone_VOL+, playback volume increase, active low |
| 25 | GND | P | Module ground |
| 26 | GND | P | Module ground |
| 27 | GND | P | Module ground |
| 28 | X0D00 | I/O | NC |
| 29 | X0D11 | I | MCLK_IN, input |
| 30 | X1D00 | I | I2S_DIN, connects to CODEC I2S_DOUT |
| 31 | X1D01 | O | I2S_LRCK, connects to CODEC LRCK |
| 32 | GND | P | Module ground |
| 33 | X1D09 | I/O | NC |
| 34 | X1D10 | O | I2S_BCLK, I2S master mode output, connects to CODEC BLCK |
| 35 | X1D11 | O | MCLK_OUT, clock master output, connects to MCLK_IN and CODEC MCLK |
| 36 | GND | P | Module ground |
| 37 | GND | P | Module ground |
| 38 | TDI | I/O | XTAG debug PIN |
| 39 | TDO | I/O | XTAG debug PIN |
| 40 | TMS | I/O | XTAG debug PIN |
| 41 | TCK | I/O | XTAG debug PIN |
| 42 | RST_N | I/O | System reset, active low |
| 43 | 1.8V | P | Module 1.8V power supply |
| 44 | GND | P | Module ground |
| 45 | USB_DM | I/O | USB_DM |
| 46 | USB_DP | I/O | USB_DP |
| 47 | GND | P | Module ground |
| 48 | 0.9V | P | Module 0.9V power supply |
| 49 | GND | P | Module ground |
| 50 | GND | P | Module ground |
| 51 | GND | P | Module ground |
| 52 | GND | P | Module ground |
Pin Type Description
I/O type definitions in the table: I=Input, O=Output, P=Power, I/O=Input/Output
4. Hardware Parameters¶
| Item | Value |
|---|---|
| Hardware Module Model | A316-Mini-V1 |
| Operating Voltage | 3.3V/1.8V/0.9V |
| Operating Temperature | -20℃ ~ 85℃ |
| Flash Size | 16M Bytes |
| Dimensions | 13mm x 13mm |
5. Revision History¶
| Version | Date | Description | Revised By |
|---|---|---|---|
| V1.0 | 2025-06-23 | Initial version release | |