For my first attempt at voice assistant, the 2-mic HAT was out of stock so I bought the reSpeaker 4-mic HAT - only to discover it is based on a different chip. It is working well now with a RasPi 3B I already had spare, so that’s OK.
For another room I purchased a RasPi Zero WH and - because reSpeaker 2-mic was out of stock again - an Adafruit Voice Bonnet which uses the same chip and respeaker firmware. The Voice Bonnet had a high-pitched whine, and the button is jammed between the left mic and LED which makes it impractical to put in a case.
For my 3rd attempt I have been looking specifically for a reSpeaker 2-mic HAT in Australia … and have found only one online shop with it listed as a product … and it’s out of stock
It appears that raspberry Pi suppliers here in Australia have “retired” the reSpeaker 2-mic HAT, yet still stock the reSpeaker 4-mic HAT. is this happening overseas as well ?
Is there any actual problem with the 2-mic HAT ? And are the other reSpeaker models being quietly “retired” as stock sell out ?