Barbra Streisand’s son, Jason Gould, is getting into the family business by releasing an album Tuesday. “My mother has set a very high standard, so it wasn’t like I was just anybody, you know, opening my mouth,” Gould — whose father is “Ocean’s Eleven” star Elliott Gould — tells Web site Stargayzing. “I was very insecure about my voice . . . Sometimes I hear it and I think, ‘Is this good?’ ” Gould, 46, will perform on his mother’s upcoming tour but has so far only performed for her in her living room. “I think a part of me was afraid to open my mouth,” the actor, who starred with Streisand in “The Prince of Tides,” says of getting up the courage to croon, “particularly . . . in front of my mother.”