24 add support for spk type 15

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Comparison is base (61e5448) 97.92% compared to head (4bfe90b) 97.93%. Report is 1 commits behind head on dev.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## dev #39 +/- ## ======================================= Coverage 97.92% 97.93% ======================================= Files 26 26 Lines 2463 2465 +2 ======================================= + Hits 2412 2414 +2 Misses 51 51 ```

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