The VideoLAN Forums

Posted: **26 Mar 2010 11:08**

Hi,
I have an rtsp audio+video source, and I would like to visualize the audio spectrum ignoring the video.
I've tried (in C#) different combinations of options, such as:

Code: Select all

 string[] options = 
                {
                  ":audio-visual=visual",
                  ":show-display=true",
                  ":no-video-title-show",
                  ":no-video",
                  ":effect-list=spectrum"
                };

            vlc.playlist.add("rtsp://whatever", "OnlyAudioSpectrum", options);
            vlc.playlist.play();

or:

Code: Select all

 string[] options = 
                {
                  ":audio-visual=spectrum",
                  ":show-display=true",
                  ":no-video"
                };

            vlc.playlist.add("rtsp://whatever", "OnlyAudioSpectrum", options);
            vlc.playlist.play();

Actually I've tried also more options combinations, but nothing shows up what I would see using the VLC player's option: Audio -> Show -> Spectrum (on my italian installations is Audio -> Visualizzazioni -> Spettro).

Any hint?
Thanks,
Michel

Posted: **29 Mar 2010 10:24**

The command line (for VLC 1.0.5 under windows) to achieve the behaviour I'd like on the ActiveX is:

Code: Select all

vlc --no-video --audio-visual=visual --effect-list=spectrum rtsp://my_stream

Sadly, the same options passed to the ActiveX result in a black component content.

Posted: **22 Jul 2016 17:16**

To help you, we need messages, to completely understand what your problems is.
To fix this, please be sure before you start the playback to:

Open: Tools -> Messages.
Set Verbosity to 2
Start playback to reproduce your issue
Save text in a file or copy into clipboard
Then paste the full resulting log here between [code]and[/code] (or use Pastebin.com if it's too long)

Also don't forget to name your Operating System and provide the VLC media player version.

Not work.
Who can assist?

michel_etica - do you find the resolution?

Posted: **10 Aug 2016 18:03**

Hi, done.

The VideoLAN Forums

ActiveX: show only audio spectrum with a A/V source

ActiveX: show only audio spectrum with a A/V source

Re: ActiveX: show only audio spectrum with a A/V source

Re: ActiveX: show only audio spectrum with a A/V source

Re: ActiveX: show only audio spectrum with a A/V source