Related link: AEC Gen 4 - C55x & C64x ![]()
Acoustic Echo is caused by direct and indirect feedback from speaker to microphone.
The Adaptive Digital patented acoustic echo canceller electronically removes both direct coupling and reflected echo enabling true full-duplex hands-free telephony for both mobile phones and desktop speakerphones.
By using Adaptive Digital’s acoustic echo canceller to eliminate this unwanted echo and reverberating interference, echo-free conversation can be achieved.
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Data Sheet:
.pdf

Related Product - Adaptive Feedback Control (AFC)
ADT AEC is available on the TMS320™ DSP Family
C54x™DSP, C55x™DSP, & C64x™DSP Generations
C54x
All Memory usage is given in units of 16-bit word.
Tail Length |
MIPS* |
Program Memory |
Data Memory** |
Per-Channel Data Memory*** |
32 msec |
9.8 |
4746 |
1700 |
1924 |
64 msec |
12.4 |
4746 |
2260 |
2356 |
Last update: 01/17/2005
C55x
All Memory usage is given in units of byte.
Tail Length |
MIPS * |
Program Memory |
Data Memory** |
Per-Channel Data Memory*** |
32 msec |
7.8 |
9538 |
3400 |
3848 |
64 msec |
8.6 |
9538 |
4520 |
4712 |
Last update: 04/13/2005
C64x
All Memory usage is given in units of byte.
Tail Length |
MIPS* |
Program Memory |
Data Memory** |
Per-Channel Data Memory*** |
32 msec |
5.0 |
15530 |
3400 |
3848 |
64 msec |
6.5 |
15530 |
4520 |
4712 |
Last update: 02/25/2005
* MIPS may vary depend on the AEC’s configuration setup by users
** Data Memory includes const table memory and scratch memory
*** Per-Channel Memory includes AEC’s Channel and static-allocated state memory for each channel.
ARM 9
All Memory usage is given in units of byte.
Tail Length |
MIPS * |
Program Memory |
Data Memory** |
Per-Channel Data Memory*** |
32 msec |
26.6 |
15944 |
3372 |
4112 |
64 msec |
35.9 |
15944 |
4492 |
4976 |
Last update: 04/29/2008
* MIPS may vary depend on the AEC’s configuration setup by users
** Data Memory includes const table memory and scratch memory
*** Per-Channel Memory includes AEC’s Channel and static-allocated state memory for each channel.
AEC_ADT_aecInit(…) Initializes echo canceller channel
AEC_ADT_aecCancel(…) Executes cancellation function
SITE LINKS
HOMEECHO CANCELLER
G.168 v10 NEC & LEC G.168 Plus™ Packet G.168 Testing Service G.168 Lite G.168 EC CHIP 'C6424 G.168 SUB. TEST DEMO ECHO EXPLAINED AT&T QUALIFICATION ACOUSTIC EC ACOUSTIC EC G4 EC INDEXVOICE QUALITY
VQE SUITE Noise Reduction Noise Reduction G2 Noise SuppresionRELATED LINKS
PRODUCT INDEX .pdf INDEX WHITE PAPERS VOIP PHONE REFERENCE KIT G.PAK FRAMEWORK OPEN G.PAK SOLUTION DSP RESOURCE WIZARD
Adaptive Digital's echo canceller is a robust, carrier class, flexible software solution that is available across a wide variety of DSP platforms.