mirror of https://github.com/thesofproject/sof.git
12 lines
910 B
Markdown
12 lines
910 B
Markdown
Limitations
|
|
|
|
If you do something that puts a bunch of poles and zeros at the same location, then you should expect
|
|
bizarre results when it comes to the impulse response graph. The system does not calculate the responses
|
|
individually which results in undefined behaviour due to octave's functionality when these conditions are
|
|
met. To further clarify the scenario, create 5+ peaking filters with 0dbB gain, all with the same cutoff and
|
|
Q. Now give one of them 1dB and observe the impulse go completely haywire. Octave seems to have an issue with
|
|
handling a large number of poles and zeros at the same location. Reducing the total count of peaking filters
|
|
to below 5 should resolve the graphing issue. This does not mean you can't have more than 5 peaking filters,
|
|
it just means that if you observe this behaviour, you need to adjust your cutoffs to keep the poles and zeros
|
|
from piling up in the same location.
|