Brisbane City Council has been accused of imposing a curfew on blind people by turning off audible traffic signals at night.

Council has angered Disability Discrimination Commissioner Graeme Innes, who said he was stunned to learn what the council has done to satisfy CBD residents unhappy about the noise.

Mr Innes was in Brisbane at the weekend for a meeting about information services for the blind and vision impaired.

"Effectively we were on a curfew because at 9.30 at night the audible traffic signals are turned off and they don't go back on until 6.30 in the morning," he told ABC radio.

"If we were out later than that at night, or up and about before 6.30, which I often am because I take my guide dog for a walk, we didn't have the benefit of signals to cross roads."