New Quality Upgrade, Communication Evolution: Full Duplex Audio Technology from 8K to 16K Sampling Rate

NiceRF surprises with an upgrade to the SA618 series modules, including SA618F22, SA618F30, SA628F22, and SA628F30. The full-duplex audio modules now boast a sampling rate upgrade from the original 8K to the current 16K, utilizing long-distance wireless transmission. To meet the diverse application needs of different customers, we have optimized the audio quality upgrade of this series by offering various selectable modes through module software design, allowing users to customize their modules in multiple ways.

The main upgrade of the SA618 series this time is the audio sampling rate, which has been upgraded from the previous full-duplex 8K sampling rate to full-duplex 16K sampling rate. Using a 16K sampling rate compared to 8K sampling rate can produce audio files with higher fidelity, providing a superior music experience. This upgrade supports OTA over-the-air updates and wireless multi-level relay MESH networking, making it easier for users to configure more flexibly. This upgrade not only brings better audio quality experience technically, but also reflects our philosophy of continuously pursuing product quality.

Full-duplex audio module features:

Frequency Band 420~510MHz

(customizable 150-960 MHz)

Up to 8 devices transmit simultaneously ( Receive unlimited)

Echo cancellation function

VOX function

Multi-level wireless repeating

I2S Digital audio+analog audio

Line In + Mic input

Full duplex data transmission

Support data transmission

Sleep low power consumption

Support OTA &Serial upgrade

1KM transmission distance in the open area

High Receiving sensitivity：-117 dBm

High integration and small size

To better distinguish this upgrade, the SA618 transmission audio quality can be divided into multiple versions for differentiation.

Audio Quality Grade Chart:

Audio Quality Level:L3>L2>L1>L0

In summary, the upgrade from full-duplex audio from 8K sampling rate to full-duplex 16K sampling rate not only enhances the sound quality, frequency response, and anti-interference capability of the audio communication system but also meets different requirements for communication quantity, sound quality, and transmission distance in different scenarios. Whether it's long-distance communication or short-distance communication, as well as situations where multiple people communicate simultaneously, these systems can provide efficient, clear, and reliable audio communication experiences. NiceRF is committed to providing users with more convenient and comfortable communication solutions.