By making the AGC aware of the AEC state, we can avoid having the AGC becoming a cause of howling. Noise Reduction is done pre-NLP, resulting in a far cleaner audio stream feeding into the non-linear processor. *NR2 is not turned on.Īdaptive Digital Technologies’ high definition acoustic echo canceller ( HD AEC), has integrated Noise Reduction and AGC into its AEC algorithm and created appropriate hooks to make them work together seamlessly. Note: MIPS generated with AGC, NR and CNG enabled. HD AEC C55x CPU Utilization & Memory Requirements HD AEC C64x / C64x+ CPU Utilization & Memory Requirements When using external source for program and data memory, MIPS increase by 3x per enabled microphone. Note: MIPS generated with single mic enabled, and running with on chip (internal) program and data memory only. HD AEC C674x CPU Utilization & Memory Requirements HD AEC ARM Cortex-M7 CPU Utilization & Memory Requirements Specifications measured on TI Tiva C series ARM Cortex-M4 based MCU.
Note: HD AEC Cortex-M4 MIPS generated with 0 wait state FLASH. HD AEC ARM Cortex-M4 CPU Utilization & Memory Requirements Specifications measure on BeagleBoard-xM TI AM37x ARM Cortex-A-8 based MCU. Note: MIPS generated with single mic enabled,running with on chip (internal) program and data memory only. HD AEC ARM Cortex-A8/A9/A15/A17 CPU Utilization & Memory RequirementsĪll Memory usage is given in units of byte.
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