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The Signal Envelope block measures the rms average value of the input signals.Holds the signal level for time specified in Hold Control(ms) before starting increase/decrease the output signal level,when there is a change in input signal level.
Name | ADSP-214xx(Sample) | ADSP-214xx(Block) | ADSP-215xx/ADSP-SC5xx(Sample) | ADSP-215xx/ADSP-SC5xx(Block) |
---|---|---|---|---|
Signal Envelope | Yes | Yes | Yes | Yes |
Name | Type | Description |
---|---|---|
Input | Audio | Input channel |
Name | Type | Description |
---|---|---|
Output | Audio | Output channel |
GUI Parameter Name | Default Value | Range | Function Description |
---|---|---|---|
RmsTC | 120 | 1 to 10000 | Controls the time constant (TC) in dB/second that is used for calculating the RMS input value. The time constant determines how rapidly the compressor will respond to input signal level changes, e.g. the “Attack” time. |
Hold | 0 | 0 to 2000 | Controls the time (ms)the envelope maintains the output level before it starts decreasing as the input level decreases |
Decay(NA for Ext Decay) | 10 | 1 to 10000 | Controls the rate at which envelope signal decreases in response to the decrease in the input signal |
Parameter Name | Description | ADSP-214xx/SC5xx/215xx |
---|---|---|
RmsTC | Controls the time constant (TC) in dB/second that is used for calculating the RMS input value. | Float |
Hold | Controls the time (ms)the envelope maintains the output level before it starts decreasing as the input level decreases | Float |
Decay | Controls the rate at which envelope signal decreases in response to the decrease in the input signal | Float |
RmsTC = Abs(1 - 10^(RmsTC/(10 * Sampling Rate)
Hold = (int) Sampling Rate * Hold/1000
Decay = 1/10^(Decay * 2 /(10 * Sampling Rate))