Writing a Screencast Video Editor in Haskell | Hacker News Reader

Writing a Screencast Video Editor in Haskell

wickstrom.tech

126 pointsjose_zap12 comments

I don't have any advice about it but just wanted to mention that Blender is also a video/audio editor with lots of filters and keyboard shortcuts out the wazoo. After making 3D models for a couple years, it blew my mind to hit the dropdown menu and go from "Default" to "Video Editing" -

See https://danielpocock.com/quick-start-blender-video-editing

After making 3D models for a couple years, it blew my mind to hit the dropdown menu and go from "Default" to "Video Editing".

That just seems wrong to me. If someone could be using an application for many years and not notice that it has another, completely different application hidden under a menu, then that seems like pretty good evidence of a problem.

Shouldn't they break the video editor out into a separate application? What's the advantage of integrating it into blender? My rudimentary impression (I don't work in the film industry) is that video editing and 3D effects are done by entirely different groups of people. Forcing them all to use the same, monolithic application seems less efficient than giving them custom-tailored tools.

Well the thing that got me into Blender in the first place was seeing really cool 3D animations that were built from scratch by a single individual, and a hobbyist at that.

Have you used Photoshop? There's a thousand options within the dropdown menus, no one uses all of them (AFAIK), you learn how to do the thing you want to do and then you're familiar with that subset of tools.

So Blender has a thousand tools for animation - but I didn't even want to do that, I just got good at using the geometry manipulation tools and exported my STL, so I wasn't familiar at all with all the different timeline and video export tools. Until I googled "open source video editor", that is.

Photoshop also has a video editor built in.

> First, I tried free software alternatives, including Kdenlive, OpenShot, and a few more. Unfortunately, the audio effects available were a bit disappointing. I use, at a minimum, normalization and a noise gate. Having a good compressor is a plus.

Audacity + Davinci resolve are fantastic. Both free and both available in Linux/Mac/Win

And both have noise reduction and compression that the author wants.

The author is using "free software" in the free software movement sense:

https://en.wikipedia.org/wiki/Free_software

Audacity is free software, but DaVinci Resolve is merely freeware.

But later he talks about Premiere pro. And according to him the problem was the workflow, and not the proprietary nature of the software.

> I used Premiere Pro for a while and enjoyed the stability and quality of the tools, but I still suffered from the repetitive workload of cutting and organizing the video and audio clips to form my screencasts

His example video in the website is also on Windows, so he is definitely using non-free software.

It's really great to see a working proof-of-concept of the declarative GTK wrapper. That kind of thing is sorely needed for compiled native applications.

This alone is a great problem to solve. Interested to hear defaults for normalization, noise gate, and compressor.

You mean default settings for these audio effects? They should always be set up relative to the material you're working on

Have you seen/used Audacity?

Nice, I have to record a course next month and I read about Komposition on Twitter once, but I forgot the name and couldn't find it anymore.

I will try it, but I ha e the feeling that I don't have the patience to record audio and video sperately.

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