ADAPTIVE FEEDBACK CONTROL

AFC C55x , C64x , C64x +

In many acoustic applications, the presence of feedback can cause a resonance to occur. Whether or not the resonance occurs as well as the frequency of the resonance depends upon many variables: is a function of gain/loss, acoustic reflections, room size, and system delay.

Adaptive Digital's Adaptive Feedback Control algorithm analyzes an input signal, determines whether or not there is a resonance, and eliminates the resonance while minimizing the effect on the desired signal.

AVAILABILITY

ADT AFC is available on the TMS320C5000™ DSP Platform

C55x™ and C54x DSP Generation

Data sheet: .pdf

SPECIFICATIONS

C55X

All Memory usage of AFC C55X is given in units of kilobytes. (1 kilo byte = 1024 bytes)

Adaptive Feedback Control	Sampling Rate	MIPS (peak)	Program Memory	Data Memory	Per-channel Data Memory
AFC_ADT_run	8000	67	2250	5512	3548

C64x

All Memory usage of AFC C55X is given in units of kilobytes. (1 kilo byte = 1024 bytes)

Adaptive Feedback Control	Sampling Rate	MIPS (peak)	Program Memory	Data Memory	Per-channel Data Memory
AFC_ADT_run	8000	22	5216	4854	1676
AFC_ADT_run	16000	61	5216	5190	2544
AFC_ADT_run	44100	333	5216	6254	5244
AFC_ADT_run	48000	364	5216	6414	5676

C64x +

All Memory usage of AFC C55X is given in units of kilobytes. (1 kilo byte = 1024 bytes)

Adaptive Feedback Control	Sampling Rate	MIPS (peak)	Program Memory	Data Memory	Per-channel Data Memory
AFC_ADT_run	8000	32	5216	4854	1676
AFC_ADT_run	16000	64	5216	5190	2544
AFC_ADT_run	44100	339	5216	6254	5244
AFC_ADT_run	48000	397	5216	6414	5676

AFC_ADT_init(. . .)

AFC_ADT_initObj(. . .)

AFC_ADT_run(. . .)