| stream_model | 3 | Media streaming mode; see StreamModelEnum | Set before joining; read at join() to decide which media streaming implementation to use |
| stat_interval | 0 | Interval of the uplink/downlink callbacks (milliseconds) | Can be changed at any time while in the channel; the statistics thread re-reads it every cycle |
| speaker_interval | 0 | Interval of the audio level callback (milliseconds) | Can be changed at any time while in the channel; the statistics thread re-reads it every cycle |
| enable_audio_record | 0 | Enables local audio recording | Set before joining |
| mcu_track | 1 | MCU track setting | Set before joining |
| den_model | 2 | Audio noise suppression (0: acoustic, 1: AI, 2: AI + acoustic, 3: off) | Can be changed at any time while in the channel; applied to this channel immediately |
| simple | 0 | Simple mode | Set before joining |
| opus | 0 | Enables Opus encoding | Set before joining; also read every time an audio track is published |
| limit_speed | 0 | Bandwidth limit setting | Can be changed at any time while in the channel; applied to this channel immediately |