Directional microphone receiver and sound device

A directional microphone receiver, comprising:

• a housing, having a first tuning chamber and a second tuning chamber, wherein a surface of the housing is provided with a first sound transmission hole and a second sound transmission hole;
• and the first tuning chamber communicates with the first sound transmission hole, and the second tuning chamber communicates with the second sound transmission hole;
• and
• an electret condenser microphone (ECM), provided between the first tuning chamber and the second tuning chamber, and separating the first tuning chamber and the second tuning chamber, wherein the ECM has a diaphragm, an upper chamber, and a lower chamber;
• the diaphragm is provided between the upper chamber and the lower chamber;
• and the lower chamber communicates with the first tuning chamber, and the upper chamber communicates with the second tuning chamber;
• wherein the ECM comprises:
• a microphone shell, a printed circuit board (PCB) provided in the microphone shell, and a plate parallel to the PCB;
• and the diaphragm is provided in the microphone shell;
• an inner wall of the microphone shell, the diaphragm, and the plate enclose the lower chamber;
• and the plate is provided with a first sound receiving hole, which communicates with the lower chamber and the first tuning chamber respectively;
• and
• the inner wall of the microphone shell, the diaphragm, and the PCB enclose the upper chamber;
• and the PCB is provided with a second sound receiving hole, which communicates with the upper chamber and the second tuning chamber respectively;
• wherein the ECM further comprises a damping member, which covers the first sound transmission hole, the second sound transmission hole, the first sound receiving hole, or the second sound receiving hole.