Audio Development
The Rhino Pi IQ9N integrates an audio module that supports a 4-microphone array and 2 × 5W speaker output, enabling far-field sound pickup, beamforming noise reduction, acoustic echo cancellation (AEC), and directional sound pickup.
Audio Hardware
| Item | Specification |
|---|---|
| Microphone | 4Mic Array omnidirectional microphone, supporting wake-up, beamforming noise reduction, echo cancellation, and directional sound pickup |
| Speaker | 2 × 5W Speaker (WAFER-PH2.0-2PWB interface) |
| Pickup distance | 5 m long-distance pickup; recording distance adjustable from 1 to 5 m |
| Audio channels | Supports 4/6 MIC and VOIP call noise reduction |
| External interfaces | Internal USB2.0 audio channel (AEC), I2S interface |
The table above lists specification values; measured metrics are subject to whole-machine testing.
Supported Development Capabilities
- Audio playback and recording through ALSA.
- Connecting external audio devices through the I2S interface.
- Voice recognition and speech synthesis combined with the AidVoice SDK.
