Complain when p_signal has low bit depth so that saving works reliably
#79
| Job | Run time |
|---|---|
| 3m 29s | |
| 3m 34s | |
| 4m 21s | |
| 3m 26s | |
| 3m 33s | |
| 3m 11s | |
| 3m 21s | |
| 3m 24s | |
| 3m 37s | |
| 4m 37s | |
| 3m 36s | |
| 3m 22s | |
| 3m 10s | |
| 3m 30s | |
| 3m 8s | |
| 3m 56s | |
| 3m 40s | |
| 1h 0m 55s |