voice has noise

[bizkit1]

Hello. Nic project, i managed to implment it on two esp32 DevKitc v4. I am usintg MAX4466 analogic micrphone and PAM8403 amplifier connected to a 3W speaker.
I am using the whole process connected through the wlan network,
I can send voice, but it has very high static noise when transmitting. Basically you can bearly distinguish the voice from the noise.
Any ideea if this has something to do with the settings or do i need some kind of noise filtering?

Thanks

[scottcopus]

@bizkit1 I would think an analog mic would need extra circuitry to reduce noise. I think the MAX4466 datasheet mentions putting a 0.1uF capacitor across its VCC/GND? That may help. Have you tried a digital i2s mic like the INMP441? I think that's what was used in this walkie talkie's schematic? US Amazon link. I'm using the INMP441's but not in a project like this and had a little buzzing. But adding a 0.1uF and a 68uF capacitor helped a lot with that. Good luck.