Welcome to Doom9's Forum, THE in-place to be for everyone interested in DVD conversion. Before you start posting please read the forum rules. By posting to this forum you agree to abide by the rules. |
1st November 2009, 23:10 | #11 | Link |
Registered User
Join Date: May 2005
Posts: 169
|
ac3 audio below minimum
I think I see what is happening. It looks like if you convert from another audio format, such as .mp3, it honors the minimum bitrate.
But it seems if the audio is already .ac3, even if the bitrate is below the minimum, it is just muxed in with no processing if "preserve compliant ac3 audio" option is checked. here's a log from the clip with .mp3 audio ============================================== <11/1/2009 4:41:42 PM> START PROCESS <> <11/1/2009 4:41:42 PM> PROJECT SETTINGS DVD Video Standard: NTSC DVD Titles number: 1 DVD Size: 639/4450 MB (14%) DVD Output Setup: DVD Folder DVD Label: TestClip DVD Menu: No Menu Output Folder: C:\DVD\AVStoDVD_Out Save Log file: Yes Delete Temp Process Files: Yes Delete Working Files: Yes Edit Command Parameters: No Post Process Task: Show Progress Status window <> <11/1/2009 4:41:42 PM> TITLE 1 SOURCE FILES Video: C:\DVD\TestClip.avi Info: DivX 5 - 1014 kbps - 640x352 - DAR 1.818 - 23.976 fps - Progressive - 10:09 minutes - 14625 frames Audio: C:\DVD\TestClip.avi Info: MPEG-1 Audio layer 3 - 32 kbps - CBR - 48000Hz - 2ch - 10:10 minutes Subs: [MediaInfoLib - v0.7.23] <> <11/1/2009 4:41:42 PM> AVISYNTH SCRIPT Import("C:\Program Files (x86)\AVStoDVD\Lib\A2DSource.avsi") Video = A2DVideoSource("C:\DVD\TestClip.avi", CacheFolder = "C:\Users\Owner\AppData\Local\Temp") Audio = A2DAudioSource("C:\DVD\TestClip.avi", CacheFolder = "C:\Users\Owner\AppData\Local\Temp") Video = Video.ConvertToYV12 #Using DGPulldown to upsize FPS Video = Video.AddBorders(0,4,0,4) Video = Video.Lanczos4Resize(720,480) AudioDub(Video, Audio) <> <11/1/2009 4:41:42 PM> START VIDEO ENCODING OPERATIONS Encoding Profile: QuEnc CBR 1-pass Target Video FileSize: 618.1 MB QuEnc Parameters: -i "C:\Users\Owner\AppData\Local\Temp\TestClip_0_TestClip.avs" -o "C:\DVD\AVStoDVD_Out\TestClip_0_TestClip.m2v" -b 8500 -1 -hq -novbr -scene -trell -aspectratio 16:9 -nointerlaced -mpeg2mux noaudio -dc 10 -priority 5 -auto -close <> <11/1/2009 4:46:44 PM> END VIDEO ENCODING OPERATIONS A2DVideoSource: AVISource Created File: C:\DVD\AVStoDVD_Out\TestClip_0_TestClip.m2v (618 MB) OUTPUT VIDEO INFO: MPEG-2 Video - 8572 kbps - 720x480 - DAR 1.778 - 23.976 fps - Progressive - 10:09 minutes - 14610 frames <> <11/1/2009 4:46:44 PM> START PULLDOWN OPERATIONS DGPulldown Parameters: "C:\DVD\AVStoDVD_Out\TestClip_0_TestClip.m2v" -srcfps 23.976 -destfps 29.97 -inplace -bff <> <11/1/2009 4:47:14 PM> END PULLDOWN OPERATIONS DGPulldown executed on File: C:\DVD\AVStoDVD_Out\TestClip_0_TestClip.m2v (618 MB) OUTPUT VIDEO INFO: MPEG-2 Video - 8565 kbps - 720x480 - DAR 1.778 - 23.976 fps - Progressive (2:3 Pulldown) - 10:09 minutes - 14622 frames <> <11/1/2009 4:47:14 PM> START AUDIO ENCODING OPERATIONS Wavi+Aften Parameters: "C:\Users\Owner\AppData\Local\Temp\TestClip_0_TestClip.avs" - | "C:\Program Files (x86)\AVStoDVD\Aften\aften.exe" -b 224 - "C:\DVD\AVStoDVD_Out\TestClip_0_TestClip.ac3" <> <11/1/2009 4:47:35 PM> END AUDIO ENCODING OPERATIONS A2DAudioSource: DirectShowSource Created File: C:\DVD\AVStoDVD_Out\TestClip_0_TestClip.ac3 (16.3 MB) OUTPUT AUDIO INFO: AC3 - 224 kbps - CBR - 48000Hz - 2ch - 10:10 minutes <> <11/1/2009 4:47:36 PM> START DVD AUTHORING OPERATIONS BatchMux Parameters: -arglist "C:\Users\Owner\AppData\Local\Temp\TestClip_0_BatchMux.ini" BatchMux ini file: -d "C:\DVD\AVStoDVD_Out\TestClip_0\VIDEO_TS" -mxp "C:\Users\Owner\AppData\Local\Temp\TestClip_0_MuxMan.mxp" -l "C:\Users\Owner\AppData\Local\Temp\TestClip_0_MuxMan.log" -muxman "C:\Program Files (x86)\AVStoDVD\MuxMan" -prio LOW -v "C:\DVD\AVStoDVD_Out\TestClip_0_TestClip.m2v" -vidmode LB -a1 "C:\DVD\AVStoDVD_Out\TestClip_0_TestClip.ac3" -a1lang en -cellfr "C:\Users\Owner\AppData\Local\Temp\TestClip_0_TestClip_MuxMan.txt" -progfr "C:\Users\Owner\AppData\Local\Temp\TestClip_0_TestClip_MuxMan.txt" -chapfr "C:\Users\Owner\AppData\Local\Temp\TestClip_0_TestClip_MuxMan.txt" <> <11/1/2009 4:47:42 PM> END DVD AUTHORING OPERATIONS Created Folder: C:\DVD\AVStoDVD_Out\TestClip_0 (643.4 MB) <> <11/1/2009 4:47:43 PM> Log file created by AVStoDVD Release 2.2.3 <> ============================================== The same clip but I used AviDemux to convert the audio to ac3 192 ============================================== <11/1/2009 4:53:20 PM> START PROCESS <> <11/1/2009 4:53:20 PM> PROJECT SETTINGS DVD Video Standard: NTSC DVD Titles number: 1 DVD Size: 636/4450 MB (14%) DVD Output Setup: DVD Folder DVD Label: TestClip2 DVD Menu: No Menu Output Folder: C:\DVD\AVStoDVD_Out Save Log file: Yes Delete Temp Process Files: Yes Delete Working Files: Yes Edit Command Parameters: No Post Process Task: Show Progress Status window <> <11/1/2009 4:53:20 PM> TITLE 1 SOURCE FILES Video: C:\DVD\TestClip2.avi Info: DivX 5 - 1014 kbps - 640x352 - DAR 1.818 - 23.976 fps - Progressive - 10:09 minutes - 14625 frames Audio: C:\DVD\TestClip2.avi Info: AC3 - 192 kbps - CBR - 48000Hz - 2ch - 10:09 minutes Subs: [MediaInfoLib - v0.7.23] <> <11/1/2009 4:53:20 PM> AVISYNTH SCRIPT Import("C:\Program Files (x86)\AVStoDVD\Lib\A2DSource.avsi") Video = A2DVideoSource("C:\DVD\TestClip2.avi", CacheFolder = "C:\Users\Owner\AppData\Local\Temp") # Audio is frameserved by AviSynth just for Preview and Edit purposes. Audio = A2DAudioSource("C:\DVD\TestClip2.avi", CacheFolder = "C:\Users\Owner\AppData\Local\Temp") Video = Video.ConvertToYV12 #Using DGPulldown to upsize FPS Video = Video.AddBorders(0,4,0,4) Video = Video.Lanczos4Resize(720,480) AudioDub(Video, Audio) <> <11/1/2009 4:53:20 PM> START VIDEO ENCODING OPERATIONS Encoding Profile: QuEnc CBR 1-pass Target Video FileSize: 618.1 MB QuEnc Parameters: -i "C:\Users\Owner\AppData\Local\Temp\TestClip2_0_TestClip2.avs" -o "C:\DVD\AVStoDVD_Out\TestClip2_0_TestClip2.m2v" -b 8500 -1 -hq -novbr -scene -trell -aspectratio 16:9 -nointerlaced -mpeg2mux noaudio -dc 10 -priority 5 -auto -close <> <11/1/2009 4:58:24 PM> END VIDEO ENCODING OPERATIONS A2DVideoSource: AVISource Created File: C:\DVD\AVStoDVD_Out\TestClip2_0_TestClip2.m2v (618 MB) OUTPUT VIDEO INFO: MPEG-2 Video - 8572 kbps - 720x480 - DAR 1.778 - 23.976 fps - Progressive - 10:09 minutes - 14610 frames <> <11/1/2009 4:58:24 PM> START PULLDOWN OPERATIONS DGPulldown Parameters: "C:\DVD\AVStoDVD_Out\TestClip2_0_TestClip2.m2v" -srcfps 23.976 -destfps 29.97 -inplace -bff <> <11/1/2009 4:58:53 PM> END PULLDOWN OPERATIONS DGPulldown executed on File: C:\DVD\AVStoDVD_Out\TestClip2_0_TestClip2.m2v (618 MB) OUTPUT VIDEO INFO: MPEG-2 Video - 8565 kbps - 720x480 - DAR 1.778 - 23.976 fps - Progressive (2:3 Pulldown) - 10:09 minutes - 14622 frames <> <11/1/2009 4:58:53 PM> START AUDIO DEMUXING OPERATIONS FFmpeg Parameters: -i "C:\DVD\TestClip2.avi" -acodec copy "C:\DVD\AVStoDVD_Out\TestClip2_0_TestClip2.ToFix.ac3" <> <11/1/2009 4:59:04 PM> END AUDIO ENCODING OPERATIONS Created File: C:\DVD\AVStoDVD_Out\TestClip2_0_TestClip2.ac3 (14 MB) OUTPUT AUDIO INFO: AC3 - 192 kbps - CBR - 48000Hz - 2ch - 10:09 minutes <> <11/1/2009 4:59:04 PM> START DVD AUTHORING OPERATIONS BatchMux Parameters: -arglist "C:\Users\Owner\AppData\Local\Temp\TestClip2_0_BatchMux.ini" BatchMux ini file: -d "C:\DVD\AVStoDVD_Out\TestClip2_0\VIDEO_TS" -mxp "C:\Users\Owner\AppData\Local\Temp\TestClip2_0_MuxMan.mxp" -l "C:\Users\Owner\AppData\Local\Temp\TestClip2_0_MuxMan.log" -muxman "C:\Program Files (x86)\AVStoDVD\MuxMan" -prio LOW -v "C:\DVD\AVStoDVD_Out\TestClip2_0_TestClip2.m2v" -vidmode LB -a1 "C:\DVD\AVStoDVD_Out\TestClip2_0_TestClip2.ac3" -a1lang en -cellfr "C:\Users\Owner\AppData\Local\Temp\TestClip2_0_TestClip2_MuxMan.txt" -progfr "C:\Users\Owner\AppData\Local\Temp\TestClip2_0_TestClip2_MuxMan.txt" -chapfr "C:\Users\Owner\AppData\Local\Temp\TestClip2_0_TestClip2_MuxMan.txt" <> <11/1/2009 4:59:11 PM> END DVD AUTHORING OPERATIONS Created Folder: C:\DVD\AVStoDVD_Out\TestClip2_0 (641 MB) <> <11/1/2009 4:59:11 PM> Log file created by AVStoDVD Release 2.2.3 <> ============================================== I haven't done test runs yet with HC but maybe you can tell from this if the "preserve ac3" setting is supposed to keep the audio regardless of bitrate or it's supposed to process if below the minimum. I guess a case could be made for either setting.
__________________
"I don't want to belong to any club that would have me as a member." - Groucho Marx |
Thread Tools | Search this Thread |
Display Modes | |
|
|