Hello Rajat,

The error is saying that the file cannot be found. Are you sure you typed
the file name correctly? As far as I know, gst-launch admints relative
paths, but if it does not work, please use an absolute path and see what
happens.

Good luck
Rubén

2012/3/27 Rajat Jain <[email protected]>

> Hello Christopher,
> I am new to using gstreamer and sox, and I was making myself comfortable
> in the same since last 2-3 days. However, I found myself helpless while
> playing a simple mp3 file using gstreamer through the terminal. There was a
> simple command provided in the gstreamer documentation to run a mp3 file,
> but it's not working on my system. The command goes like this:
> *
> *
> *Command: *gst-launch filesrc location=emptines.mp3 ! mad ! audioconvert
> ! audioresample ! alsasink
> *
> *
> *Error: *Setting pipeline to PAUSED ...
> ERROR: Pipeline doesn't want to pause.
> ERROR: from element /GstPipeline:pipeline0/GstFileSrc:filesrc0: Resource
> not found.
> Additional debug info:
> gstfilesrc.c(1036): gst_file_src_start ():
> /GstPipeline:pipeline0/GstFileSrc:filesrc0:
> No such file "emptines.mp3"
> Setting pipeline to NULL ...
> Freeing pipeline ...
>
> I tried a lot of variants of the above command, but all of them gave me
> the same result.
> *
> *
> I tried contacting the mailing list of gstreamer, but there was no reply
> from them. Can you please help me with this problem. Sorry to bother you
> with this problem, but the application period has started already and time
> is running out. I am looking forward to work on this project and I don't
> want to loose this opportunity.
>
> Regards
> Rajat
>
> On 26 March 2012 23:17, Judy Stern <[email protected]> wrote:
>
>> fwiw, Berkeley surveys (from the ancient past, i.e. 2005) show the same.
>> Higher percentages of students in Berkeley classes wanted fast playback
>> speed than the general public (presumably because more of the students
>> taking classes are using webcasts for review; general public is watching
>> for first time and not being tested on material).
>>
>> Judy
>>
>> On Mar 22, 2012, at 9:43 AM, Christopher Brooks wrote:
>>
>> > We did a survey of students asking what features they would like and
>> > this was the #2 most requested feature.  I use it myself when consuming
>> > things like podcasts, it's wonderful.
>> >
>> > Chris
>> >
>> > On Wed, 21 Mar 2012 15:31:19 -0700
>> > Hank Magnuski <[email protected]> wrote:
>> >
>> >> The University of Wisconsin Health Sciences Center processes all the
>> >> captured NCast .mp4's for a 1.5x playback. The students love it.
>> >>
>> >> On the video track you skip frames as needed, and they have an audio
>> >> tool of some sort to lower the pitch so the instructor doesn't sound
>> >> like Mickey Mouse.
>> >>
>> >> This processing appears to be popular and they are doing it for all
>> >> their lecture capture videos.
>> >>
>> >> Hank
>> >>
>> >> On Wed, Mar 21, 2012 at 1:38 PM, Rajat Jain <[email protected]>
>> >> wrote:
>> >>
>> >>> Hi there,
>> >>>
>> >>> I have been going through the project ideas of the *openCast*, and I
>> >>> came across the idea of  *Variable Playback Speed**. *However I
>> >>> have some doubts regarding the project. Such as how are we going to
>> >>> reduce the time of the playback. Are we going to increase the speed
>> >>> of the playback (which I don't believe is the idea), or are we
>> >>> going to remove some part of video from the original file ? Can
>> >>> anyone help me. Or does anyone know how to contact the mentor.
>> >>>
>> >>> Regards
>> >>> Rajat Jain
>> >>>
>> >>>
>> >
>> >
>> >
>> > --
>> > Christopher Brooks, BSc, MSc
>> > ARIES Laboratory, University of Saskatchewan
>> >
>> > Web: http://www.cs.usask.ca/~cab938
>> > Phone: 1.306.966.1442
>> > Mail: Advanced Research in Intelligent Educational Systems Laboratory
>> >     Department of Computer Science
>> >     University of Saskatchewan
>> >     176 Thorvaldson Building
>> >     110 Science Place
>> >     Saskatoon, SK
>> >     S7N 5C9
>> > _______________________________________________
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