从视频文件中延迟音频流也是 Freemake Audio Converter 的紧张功能，能将绝大部份的视频转换为音频或者将多个音频文件并吞。

反对于转换的音频格式：
mp3, aac, ogg, wma, wav, flac, m4a, amr, au, aif, aiff, aifc, ac3, adts, alaw, apc, ape, caf, dts, gsd, dsm, mka, mlp, 妹妹f, m4r, mp1, mp2, mpeg3, mpc, mp+, m2a, nut, oma, qcp, ra, rmj, shn, tta, voc, wv, xa

反对于转换的视频格式：
* avi, mp4, wmv, mkv, dvd, mpg, 3gp, flv, swf, tod, mts, mov, mv, rm, qt, ts, amv, avs, bik, bnk, cavs, cdg, dpg, dv1394, dxa, ea, ffm, film_cpk, flc, flh, fli, flm, flt, flx, gxf, h161, h263, h264, mj2, mjpg, mkm, mtv, mxf, nc, nut, ogm, ogv, pva, r3d, rax, rms, rmx, rpl, rtsp, sdp, smk, thp, vc1, vfw, vro.