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Beam-former algorithm with fractional delay combines signals in a manner which increases the signal strength to/from a chosen direction. Signals to/from other directions are combined in a benign or destructive manner, resulting in degradation of the signal to/from the undesired direction.
Name | ADSP-214xx | ADSP-215xx/SC5xx | ADAU145x/146x |
---|---|---|---|
Beamforming Designer | Block | Block | Sample |
Name | Type | Description |
---|---|---|
Rear Microphone | Audio | Input Channel0 |
Front microphone | Audio | Input Channel1 |
Name | Type | Description |
---|---|---|
Output0 | Audio | Output channel0 |
The module does not support both Grow and Add Algorithm.
GUI Parameter Name | Default Value | Range | Function Description |
---|---|---|---|
Max Delay | 1 | 1 to 5000 | Maximum Delay Supported |
Current Delay | 3 | 0 to 100 | Delay as % of Maximum Delay |
Show Design Window | NA | NA | Launches the “Beam Former Designer”. The settings on the Designer doesn’t impact the parameters. |
Parameter Name | Description | ADSP-214xx/SC5xx/215xx/ADAU1466 |
---|---|---|
Slope | Length of the delay buffer= MaxDelay | Integer |
Delay | Current Delay= CurrentDelay/100 | Float |