Chirp
Description
The signal generator block chirp can generate logarithmic or linear types of chirps based on a start and stop frequency.
This is a great stimuli to use with SAFEs loudspeaker response tool.
Output
The output is a single dimension Mx1 chirp.
Attributes
| Attribute | Value |
|---|---|
| Name | Sweep |
| Settings | |
| Sample rate | 48000 Hz |
| Start | 0 s |
| Length | 1 s |
| Amplitude | 1 FS |
| Type | Logarithmic |
| Start Frequency | 20 Hz |
| Stop Frequency | 20000 Hz |
| Outputs | 1 |
Name
Name specifies the name of the block.
Sample rate
Sample rate is the sample rate of the chirp.
Start
Start specifies when the chirp should start. If start is above 0 s the start is zeropadded accordingly.
The start can be defined in either s, ms or samples.
Length
Length specifies the length of the chirp from start in either s, ms or samples.
Amplitude
Amplitude is the amplitude (Peak) of the chirp. As the signal is generated on the computer the unit is
defined as FS.
Type
Type is the chirp type. It can either be logarithmic or linear.
Start Frequency
Start frequency is the frequency where the chirp starts.
Stop Frequency
Stop frequency is the frequency where the chirp stops.
Outputs
Outputs specifies the number of output(s) the block will have. Each output will output the same chirp.