Opened 14 years ago
Closed 14 years ago
#192 closed defect (invalid)
FFMPEG Sound Issue
| Reported by: | Mulshanker Sahu | Owned by: | Michael Niedermayer |
|---|---|---|---|
| Priority: | normal | Component: | avcodec |
| Version: | unspecified | Keywords: | aac |
| Cc: | Blocked By: | ||
| Blocking: | Reproduced by developer: | no | |
| Analyzed by developer: | no |
Description
When i transcode video file by ffmpeg tool, i am able to transcode the file into AAC & video codec H264. But, problem is that i am not getting the sound clarity in transcoded file as it is in the original file.
Here, is the ffmpeg command
ffmpeg -i _CoralReef_720.wmv -ab 100 -b 250
-s 1024*800 -fpre libx264-lossless_ultrafast.ffpreset -vol
250 -acodec aac -vcodec libx264 -crf 18 -strict experimental -y _CoralReef_720.mp4
Please let me know if i am missing something.
Change History (1)
comment:1 by , 14 years ago
| Component: | FFmpeg → avcodec |
|---|---|
| Keywords: | aac added; Sound removed |
| Resolution: | → invalid |
| Status: | new → closed |
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There are two different problems:
"-ab 100" is not a sufficient bit-rate, you probably meant "-ab 100k"
"-strict experimental" means that both quality and bit-rate-calculation are less than optimal for aac.
(imo, strict experimental also means that a) the problem is known and b) it is sufficiently documented)