SA326 Wireless Audio Module: Low-Latency, High-Fidelity Audio Transmission for Diverse Scenarios

With the rapid development of wireless communication technology, the demand for audio transmission is shifting from merely being functional to delivering high-quality performance. In scenarios such as security, remote teaching, wireless broadcasting, and outdoor performances, there is an increasing need for lower latency, clearer sound, and greater transmission reliability. Against this backdrop, the SA326 series wireless audio modules from NiceRF have garnered attention for their strengths in low latency, high audio quality, and long-distance transmission.

SA326 Series Overview

The SA326 series includes the standard transmitter module SA326-TX, the high-power transmitter module SA326F30-TX, and the receiver module SA326-RX—all based on the SA326 core design. This series adopts a highly integrated architecture and supports plug-and-play functionality. Users can conveniently configure parameters such as frequency and volume via PC software, greatly simplifying development and deployment.

The modules are provided in an application board form with standardized interfaces, making it easy to quickly connect microphones, amplifiers, speakers, and other audio devices for rapid setup.

Compared with traditional wired transmission, the SA326 series offers a stable, low-latency, and high-fidelity wireless audio experience. It is well-suited for use in conference systems, interactive teaching, wireless broadcasting, and outdoor events.

Core Advantages of the SA326 Series

Low Latency: The delay from microphone input to audio output is less than 3 ms. In scenarios requiring high real-time responsiveness, such as intercoms, performances, and command systems, latency is a critical factor in communication quality. The SA326 series modules provide a delay significantly lower than Bluetooth and Wi-Fi audio (typically 10ms to 30ms), ensuring smooth and uninterrupted conversations and commands.

High Audio Quality: The audio frequency response range extends from 30Hz to 20kHz, covering nearly the entire human hearing range, enabling accurate reproduction of both low-frequency details and high-frequency clarity. With a signal-to-noise ratio of up to 86dB, background noise and interference are effectively suppressed, ensuring clean and transparent audio output, which significantly enhances the listening experience.

Efficient Modulation and Transmission: The module uses pi/4 DQPSK digital modulation, with a bandwidth occupancy of less than 300kHz and a data transmission rate of 204.8 Ksps, supporting a 48kHz sampling rate. This ensures high-speed audio data transmission with strong resistance to interference.

Secure Transmission: The SA326 series supports 32-bit encrypted transmission, safeguarding the security and integrity of audio content.

Flexible Application: The communication range is adaptable to various environments, supporting both short and long-range wireless transmission.

High-Power Version SA326F30-TX

The SA326F30-TX is the high-power transmission module in the SA326 series, designed specifically for wireless audio transmission that requires long-range, high signal-to-noise ratio, and strong interference resistance. Based on the SA316F30 core module, it features the following characteristics:

Extended Transmission Distance: In open environments, the transmission range can reach up to 1500 meters, far exceeding the standard SA326-TX’s coverage of approximately 200 meters.

Excellent Audio Performance: With a sampling rate of 48kHz, frequency response from 30Hz to 20kHz, signal-to-noise ratio of 86dB, and latency of less than 3ms, the module ensures high-quality sound reproduction.

High Reception Sensitivity: With a sensitivity of -96 dBm, it enhances the ability to receive weak signals.

Digital Security Encryption: Featuring 32-bit encryption transmission, it ensures secure and reliable data transmission.

Stable and Reliable Transmission Technology: Utilizing pi/4 DQPSK modulation, with a bandwidth of less than 300kHz and a data transmission rate of 204.8 Ksps, it effectively resists wireless interference.

The SA326F30-TX is ideal for applications where both audio quality and transmission distance are critical, such as outdoor wireless intercoms, emergency broadcasting, forest communication, large conferences, and outdoor performances.