This scheme is a mature scheme in the collection of intelligent audio schemes. The fastest 7-day sample chip test of the project is a wireless convenient k-song microphone that can connect to Bluetooth!
Development of k-song Bluetooth microphone
1、 Function
1. Professional enc noise reduction chip, real noise reduction, filter environmental noise;
2. Support accompaniment + external playback + real-time monitoring;
3. With three modes of noise reduction / acoustic / reverberation;
4. True 2.4G wireless technology drive free, plug and play 0 pairing;
5. Imported microphone core is adopted, sound and picture are synchronized, and there is no delay in live broadcast;
6. Imported double-layer high-density battery with long endurance;
7. Support charging the mobile phone while recording;
8. High performance multilayer ceramic antenna, 70 meters barrier free transmission, no delay, good sound quality;
9. Support type-C receiver and lightning receiver, easy to use.
2、 Bluetooth chip selection
The Bluetooth Solution Development Engineer analyzed the commonly used k-song Bluetooth microphone development solution in the market, and assessed that the ac6321a4 qfn32 model of Jerry ble Bluetooth chip series can be used as the master chip.
3、 Working principle
The karaoke Bluetooth microphone includes a speaker box and a microphone shell. The microphone is equipped with a circuit board. The speaker box and the microphone shell are connected. When they are connected to Bluetooth and powered on, they can use the function of the microphone speaker to amplify the karaoke sound to reach the target.
The above is the development content of the k-song Bluetooth microphone solution shared by the Bluetooth solution development engineers. Our company has focused on the development of MCU application solutions for 15 years, focused on the development of Bluetooth intelligent control chip application solutions, and is committed to developing creative intelligent products that are more in line with the market user experience.