Re: [FFmpeg-user] Why do these blank spots appear in spectrograms of converted youtube videos?

2017-01-09 Thread Moritz Barsnick
On Mon, Jan 09, 2017 at 09:51:34 +0800, Ethan Lewis wrote: > Thanks for suggestion but I do not have access to original audio as I > did not upload the videos myself. Well, you originally wrote: > I am confused why this is happening. Is it because of ffmpeg > conversion of m4a audio OR was it

Re: [FFmpeg-user] Why do these blank spots appear in spectrograms of converted youtube videos?

2017-01-08 Thread Ethan Lewis
> > > Have you compared with original audio? prior to resampling with ffmpeg? > > Thanks for suggestion but I do not have access to original audio as I did not upload the videos myself. ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org

Re: [FFmpeg-user] Why do these blank spots appear in spectrograms of converted youtube videos?

2017-01-06 Thread Paul B Mahol
On 1/6/17, Ethan Lewis wrote: > Hello > > I was converting a bunch of youtube videos into 16kHz wav files using ffmpeg > > I used the following commands > > youtube-dl -f best /path/to/youtube/video/ -f 'bestvideo,bestaudio' -o > '%(title)s.f%(format_id)s.%(ext)s' > >

[FFmpeg-user] Why do these blank spots appear in spectrograms of converted youtube videos?

2017-01-06 Thread Ethan Lewis
Hello I was converting a bunch of youtube videos into 16kHz wav files using ffmpeg I used the following commands youtube-dl -f best /path/to/youtube/video/ -f 'bestvideo,bestaudio' -o '%(title)s.f%(format_id)s.%(ext)s' ffmpeg -i /path/to/download/m4a/audio -acodec pcm_s16le -ar 16000 -ac