Why does the amplitude have halved by using arm_rfft_q15 ?
I was trying to use arm_rfft_q15 .In the CMSIS documentation for arm_rfft_q15, it says the output format is Q7.9 and 6 bits should be upscaled when the input RFFT size is 128 . Why does the amplitude have halved by using arm_rfft_q15 ? uint16_t i; fl...