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Extracting and Using a Recorded Sound Effect with VLC and Audacity

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http://www.freesoftwaremagazine.com – I found a useful sound effect in an online video from NASA which replaces an earlier temporary sound I used in a scene soundtrack for the Lunatics pilot, “No Children in Space.” I’m going to extract the sound from the video (with VLC), cut out the sound I need, clean it up, and insert it into an existing sound mix (all with Audacity). This should give you some insight into using Audacity and a VLC on a real project. read more (General)

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Submitted by grtyyu on 06/23/2010 – Made popular on 06/23/2010

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Free Software Magazine: "I'm going to extract the sound from the video (with VLC), cut out the sound I need, clean it up, and insert it into an existing sound mix (all with Audacity). This should give you some insight into using Audacity and a VLC on a real project."

I've installed a tv card but I can't hear the sound through my built-in CMedia soundcard when I watch tv with TVTime. The tv card's audio output is externally connected to my soundcard's line in input. In the 'Input' tab of the 'Sound Preferences' dialog, I can see the input level meter moving.

I can still play sound through other programs, but ncmpcpp and sonata both stay stuck on 'paused'.

I can kill mpd, then restart it, and verbose logging indicates success, but restarting either client results in the same behavior.

I'm running FC11, attempting to record from vinyl. At first I heard no sound so I installed gst-mixer and unmuted "aux" and now I can hear the record playing thru the speakers attached to the sound card.

When I attempt to record the sound using audacity I get silence.

Hi,

just installed opensuse 11.2 in Virtualbox (host XP). Sound works running KDE, audacity works too. Audacity's setting of default output dev is "hw:0,0". But GWC (Gnome wave cleaner) doesn't work correctly, i.e. the sound is a crackling, distorted noise. This is the case either running it under KDE or GNOME. No changes when setting the GWC output device to hw:0,0.

Ogg Vorbis and Ogg FLAC (the Ogg stream version of the Free Lossless Audio Codec) are popular free-licensed and patent-free codecs for handling sound. These are the formats I’ll be using in a complex Ogg Theora video file that I am creating as part of my “Lib-Ray” experiment in creating an alternative format for distributing high definition video.

Lost ability to hear mp4 11 weeks 16 hours ago

The only error reports I've found are related to Audacity crashing. There was one guy saying the crash occurred when importing mp4 files, but no solution. I also don't understand if Audacity is the only program with this problem or if there are others. Rhythmbox uses Gstreamer exclusively, you might try to see if you can recreate the problem.

Audacity vs 2.0 has been released, and in Ubuntu 11.10 or older versions you may not get the latest version from official update, in that case you can install it either from the source (get it from official site) or a PPA. Obviously the first choice is not for everyone, specially if the second option is available.

mono sound plays very quietly 16 weeks 6 days ago

It took me a long time to figure out, but I realized that some of my sound files were playing very quietly, and some normally. All of my sound levels are set correctly (I tried multiple mixer programs). Finally I realized that it is all the mono sound files that are playing so quietly while stereo ones are playing normally.