Designed by ROHM the BU8332KV-M shapes directivity utilizing beam forming technology, focusing the directional axis in the direction of the target sound in order to minimize ambient noise. In addition, stationary noise remaining in the direction of the directional axis is minimized using a noise suppression function. This method differs from simple noise cancelling techniques by making it possible to enhance only the target sound.
Also, the BU8332KV-M allows for 2 microphones to be placed only 10 mm apart, ensuring compatibility with a variety of compact devices, including smartphones. And process optimization ensures a process delay time less than 10 ms when using the beam forming function, minimizing the impact on other applications. The result is improved voice recognition rate and hands-free call quality.
Additional Features
- Processing delay time 10 ms or less during beam formation operation
- Built-in noise suppression function reduces residual stationary noise
- 16kHz sampling frequency
- Analog (LINEOUT) and digital (PCM I/F) outputs
- Operation possible on a single 3.3 V system (built-in regulator for core power supply)
- Mic bias and preamp circuit included
- 2-wire host I/F
- Standalone operation possible (integrated SPI I/F for EEPROM)
Applications
- Hands-free and voice recognition, including car navigation
- Portable devices and accessories (i.e. mobile phones)
- PCs, smartphones, and other equipment capable of video calling
