Wireless musical instrument transmission, traditional musical instrument wireless transmission, pickup wireless transmission, musical instrument wireless companion

2020-12-14 09:15:51 fandoukeji

Wireless musical instrument transmission, traditional musical instrument wireless transmission, pickup wireless transmission, musical instrument wireless companion






Microphone pickup input solution


 


1. Program introduction


           This solution is designed for the wireless audio transmission of traditional musical instruments. It consists of a transmitter adapter and a receiver adapter. The transmitter adapter is connected to the microphone and the receiver adapter is inserted into the input port of the amplifier. The transmission and reception adopt a 1-to-1 pairing mode, which ensures that 4 pairs of wireless devices can be used in one environment, 48K sampling rate and excellent audio coding and decoding methods are selected, with rich harmonic components, pleasant and loud sound, and low distortion.


 


 


 


2. Features


1. There are 18 preset channels, one sending and multiple receiving, and multiple sets are used together to automatically allocate channels.


2. Sampling rate is 48K, resolution is 32bits, mono.


3. Using A-LAW audio algorithm


4. Adopt A-FFC communication protocol


5. The audio transmission adopts digital processing and has strong anti-interference


6. The channel quality is not good, automatically muting when the bit error rate is high


7. Transmit and switch channels, and receive automatically follow.


 


 


 


 


4. Specifications


Specification item


WP1910TX


WP1910RX


Supply voltage


3.3V-5V


3.3V-5V


Current consumption


<80mA


<50mA


Operating temperature


0~+70 ℃


0~+70 ℃


Frequency Range


2400~2483.5MHz


2400~2483.5MHz


Number of channels


18


18


Modulation


GFSK


GFSK


Transmit power


15dBM



Receiving sensitivity



-85dBm(Min.)


Output impedance



10K


Output level



2.5Vp-p(Max)


Audio delay


<5ms


Dynamic range@1kHz


81dB


Distortion THD


0.1%


 


Four, function introduction


       pair


              Transmitting and receiving need to be paired for the first use, and the pairing only needs to be done once, and it can be used after turning on the phone.


       Switch channel


              Channel can be switched seamlessly when wireless transmission is interfered


       Battery indicator


              LED light or LCD display shows the battery level


input signal


              Condenser microphone and dynamic microphone optional


       output signal


Analog signal: signal one to one output


USB microphone: Microsoft and Android operating systems have free drive function


       Mute


              This system has a mute control function