discussed Cited "see" United States v. White See United States v. Dukes, 139 F.3d 469, 473 (5th Cir.), cert. denied, 525 U.S. 894 , 119 S.Ct. 215 , 142 L.Ed.2d 177 (1998). “[P]oor quality and partial unintelligibility do not render tapes inadmissible unless the unintelligible portions are so substantial as to render the recording as a whole untrustworthy.” Id. (citing United States v. Stone, 960 F.2d 426, 436 (5th Cir.1992)).