Saddam began the session by returning to the previous day's dispute, asking Judge Mohammed al-Oreibi al-Khalifah why he had been silenced.
"When the accuser and prosecutor talk, the world listens. When the man called the 'accused' speaks, you switch off the microphone. Is that fair?" the said.
The judge replied: "The microphone issue is to bring order in the court, if you say anything within the law (and I silence you), then you can complain."
Khalifah cut Saddam's microphone on Tuesday when the former strongman tried to inspire his remaining supporters outside the court by citing a defiant verse from the Koran: "Fight them, and God will make you victorious".
Prosecutors at the Iraqi High Tribunal say 182,000 Kurds were killed in death camps, bombings and poison gas attacks between 1987 and 1988, when Iraqi forces conducted the Anfal campaign, named after the Koranic term for "spoils".
The former Iraqi president and his co-defendants insist the operation was a legitimate military campaign against separatist guerrillas.
Saddam and his cousin Ali Hassan al-Majid, a former military commander who became notorious for gas attacks as "Chemical Ali," are accused of genocide, crimes against humanity and war crimes.
The five others are charged with war crimes and crimes against humanity, and all seven accused face the death penalty if convicted.
The defendants' own lawyers are boycotting the trial in protest at alleged interference by the Iraqi government, and Judge Khalifah has assigned seven court-appointed lawyers to conduct the defence.