can remove audio levels from mxf

[pietrop]

Audio levels could be removed from EDL of mxf file. Similar to one below exported from Adobe Premire

TITLE: mxf from adobe test
FCM: DROP FRAME

001  AX       V     C        00:38:51:20 00:38:56:22 00:00:00:00 00:00:05:03
* FROM CLIP NAME: 516_0008.MXF

002  AX       AA    C        00:38:51:20 00:38:56:22 00:00:00:00 00:00:05:03
* FROM CLIP NAME: 516_0008.MXF

003  AX       NONE  C        00:38:51:20 00:38:56:22 00:00:00:00 00:00:05:03
* FROM CLIP NAME: 516_0008.MXF
AUD  3    4

004  AX       V     C        00:39:29:20 00:39:38:16 00:00:05:03 00:00:13:29
* FROM CLIP NAME: 516_0008.MXF

005  AX       AA    C        00:39:29:20 00:39:38:16 00:00:05:03 00:00:13:29
* FROM CLIP NAME: 516_0008.MXF

006  AX       NONE  C        00:39:29:20 00:39:38:16 00:00:05:03 00:00:13:29
* FROM CLIP NAME: 516_0008.MXF
AUD  3    4

007  AX       V     C        00:40:27:06 00:40:35:09 00:00:13:29 00:00:22:03
* FROM CLIP NAME: 516_0008.MXF

008  AX       AA    C        00:40:27:06 00:40:35:09 00:00:13:29 00:00:22:03
* FROM CLIP NAME: 516_0008.MXF

009  AX       NONE  C        00:40:27:06 00:40:35:09 00:00:13:29 00:00:22:03
* FROM CLIP NAME: 516_0008.MXF
AUD  3    4

010  AX       V     C        00:40:27:06 00:40:35:09 00:00:22:03 00:00:30:07
* FROM CLIP NAME: 516_0008.MXF

011  AX       AA    C        00:40:27:06 00:40:35:09 00:00:22:03 00:00:30:07
* FROM CLIP NAME: 516_0008.MXF

012  AX       NONE  C        00:40:27:06 00:40:35:09 00:00:22:03 00:00:30:07
* FROM CLIP NAME: 516_0008.MXF
AUD  3    4

013  AX       V     C        00:39:05:10 00:39:11:17 00:00:30:07 00:00:36:16
* FROM CLIP NAME: 516_0008.MXF

014  AX       AA    C        00:39:05:10 00:39:11:17 00:00:30:07 00:00:36:16
* FROM CLIP NAME: 516_0008.MXF

015  AX       NONE  C        00:39:05:10 00:39:11:17 00:00:30:07 00:00:36:16
* FROM CLIP NAME: 516_0008.MXF
AUD  3    4