mp4_amr_wb_352_288_v87_10_a13.sdp
mp4_amr_wb_352_288_v174_15_a16.sdp
mp4_amr_wb_352_288_v277_25_a23.sdp
mp4_amr_wb_vbr_352_288_v107_10_a13.sdp
mp4_amr_wb_vbr_352_288_v232_20_a18.sdp
mp4_amr_wb_vbr_352_288_v346_30_a24.sdp