Artists Forum for Cinelerra GG Community - 最近の投稿 https://cinelerra-gg.org/ja/forum/ The artists\' meeting place for creative exchange and discussion. ja Tue, 28 Apr 2026 23:13:13 +0000 wpForo 60 Comparison of Scaling Algorithms https://cinelerra-gg.org/ja/forum/forum-miscellaneous/comparison-of-scaling-algorithms/#post-3187 Fri, 24 Apr 2026 12:48:58 +0000 An interesting comparison of various image scaling methods.
https://en.wikipedia.org/wiki/Comparison_gallery_of_image_scaling_algorithms

]]> andreapaz https://cinelerra-gg.org/ja/forum/forum-miscellaneous/comparison-of-scaling-algorithms/#post-3187 RE: Audio ducking with the single-band compressor? https://cinelerra-gg.org/ja/forum/help-audio/audio-ducking-with-the-single-band-compressor/#post-3186 Thu, 16 Apr 2026 11:34:39 +0000 @gmc 

I would like to thank @gmc for this feature, which I didn't know about.
Unfortunately, I hear cracks both during playback, in Cinelerra-GG, and in the rendering file.
Thank you so much.

]]> IgorBeg https://cinelerra-gg.org/ja/forum/help-audio/audio-ducking-with-the-single-band-compressor/#post-3186 RE: Audio ducking with the single-band compressor? https://cinelerra-gg.org/ja/forum/help-audio/audio-ducking-with-the-single-band-compressor/#post-3185 Mon, 13 Apr 2026 18:35:09 +0000 andreapaz https://cinelerra-gg.org/ja/forum/help-audio/audio-ducking-with-the-single-band-compressor/#post-3185 RE: Audio ducking with the single-band compressor? https://cinelerra-gg.org/ja/forum/help-audio/audio-ducking-with-the-single-band-compressor/#post-3184 Mon, 13 Apr 2026 06:30:25 +0000 Sure thing, go ahead! Even though I'm not sure my method is the best way to go about it.

]]> gmc https://cinelerra-gg.org/ja/forum/help-audio/audio-ducking-with-the-single-band-compressor/#post-3184 RE: Audio ducking with the single-band compressor? https://cinelerra-gg.org/ja/forum/help-audio/audio-ducking-with-the-single-band-compressor/#post-3183 Sun, 12 Apr 2026 23:46:45 +0000 @gmc 

I would like to add a section in the manual about some of these methodologies if you are ok with using some of your methods?

]]> phylsmith2004 https://cinelerra-gg.org/ja/forum/help-audio/audio-ducking-with-the-single-band-compressor/#post-3183 Answer to: Audio ducking with the single-band compressor? https://cinelerra-gg.org/ja/forum/help-audio/audio-ducking-with-the-single-band-compressor/#post-3182 Sun, 12 Apr 2026 12:54:44 +0000
 

@andreapaz @phylsmith2004 I think I managed to get what I want, sort of, with the native compressor plugin.

I copied the voice-over tracks and muted the copies. These are my control tracks. Then I added compressors to each of L and R channels of the background music, and linked those to their respective control tracks as 'Shared tracks'. I had hoped to be able to control both background music tracks by the same controlling track, but I haven't figured out how to do that. The whole concept of shared effects and shared channels still feels like magic to me, I do not understand what it does.

When I use the unmuted original voice-over tracks to control the compressor, the voice-over will be attenuated as well, which is not what I wanted.

In the compressor settings for each, I had to set 'trigger' to 1, which seems to mean 'use the shared channel that's linked to the compressor as the controlling channel'. I then set the curves for the compressor setpoints so that it sounded right. I had to move the output level for input level -78 way up though, otherwise it would be completely silent when there was no input.

Don't ask me how or why this works, but it does what I wanted. Mostly. In the preview, there's a blip where the compressor gain goes all the way down. It might be related to a cut in the audio there, not sure. I hope it goes away in the final rendering. One can hope 🙂

]]> gmc https://cinelerra-gg.org/ja/forum/help-audio/audio-ducking-with-the-single-band-compressor/#post-3182 RE: Audio ducking with the single-band compressor? https://cinelerra-gg.org/ja/forum/help-audio/audio-ducking-with-the-single-band-compressor/#post-3181 Sun, 12 Apr 2026 12:52:10 +0000 @igorbeg @andreapaz

I considered doing it by hand, but it would become too fiddly and it didn't sound right.

]]> gmc https://cinelerra-gg.org/ja/forum/help-audio/audio-ducking-with-the-single-band-compressor/#post-3181 Answer to: Audio ducking with the single-band compressor? https://cinelerra-gg.org/ja/forum/help-audio/audio-ducking-with-the-single-band-compressor/#post-3179 Sun, 12 Apr 2026 12:48:12 +0000 @gmc

As @andreapaz, I do it "by hand", more precise, more control.

Picture added

]]> IgorBeg https://cinelerra-gg.org/ja/forum/help-audio/audio-ducking-with-the-single-band-compressor/#post-3179 Answer to: Audio ducking with the single-band compressor? https://cinelerra-gg.org/ja/forum/help-audio/audio-ducking-with-the-single-band-compressor/#post-3178 Sun, 12 Apr 2026 12:37:45 +0000 I'm sorry, but I'm not very knowledgeable about the audio side of editing. The only time I've done something like audio ducking, I did it manually using keyframes and the fade curve on the audio tracks.

]]> andreapaz https://cinelerra-gg.org/ja/forum/help-audio/audio-ducking-with-the-single-band-compressor/#post-3178 RE: Audio ducking with the single-band compressor? https://cinelerra-gg.org/ja/forum/help-audio/audio-ducking-with-the-single-band-compressor/#post-3177 Sun, 12 Apr 2026 01:28:05 +0000 @gmc 

Have you tried the Ladspa plugins, L_SC2 or L_SC3?  I am not fluent in using either one, just saw the info on each containing the word "sidechain". Unfortunately the ffmpeg plugin, sidechaincompress which does audio ducking, has been commented out in CinGG due to input/output error.  In addition, there may be LV2 plugins that you can incorporate into CinGG that provide sidechain compression.  Maybe someone else will know how to do this and respond.

]]> phylsmith2004 https://cinelerra-gg.org/ja/forum/help-audio/audio-ducking-with-the-single-band-compressor/#post-3177