| #### `freq` | |
| Frequency of test signal. The sample rate needs to be at least 2 times higher. | |
| Value type: #gdouble | |
| See #audiotestsrc:freq | |
| #### `mute` | |
| mute channel | |
| Value type: #gboolean | |
| See #volume:mute | |
| #### `volume` | |
| volume factor, 1.0=100% | |
| Value type: #gdouble | |
| See #volume:volume | |
| #### `volume` | |
| Volume of test signal | |
| Value type: #gdouble | |
| See #audiotestsrc:volume | |