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Tag: ffmpeg

Probot: building a Mastodon bot

I have long admired albums2hear, a Twitter bot that posts albums. You can read a bit more about it here. There was no mastodon equivalent and so I decided to build one. You can follow the bot – currently called Albums Albums Albums (or AlbumsX3) – here. Idea behind the bot The idea is to […]

4th February 2023By Stephen Royle computing, fun, music bot, ffmpeg, mastodon, python, Raspberry Pi, RPi, Rstats

Tips From The Blog XVII: determining playback speed of a video

Generating movie files for publication can be a bit tricky. We have a protocol for making them for microscopy data, which simplifies things. However, we recently got this question from a journal: please state the playback speed of each movie file How can we do this? What information is needed for movie files? Usually movies […]

3rd May 2022By Stephen Royle computing, publishing ffmpeg, tftb

Convertible: using ffmpeg to convert audio files

A quick tech tip. I usually use Audacity for converting audio files and I have a few simple macros set up in there to make life easy. I had some opus music files which do not play in Apple’s Music app and therefore needed converting to MP3 format. Annoyingly, Audacity 3.1.2 on macOS does not […]

20th November 2021By Stephen Royle computing ffmpeg, FLAC, mp3, music, opus, tftb2 Comments

Walk This Way

Over the holidays, I had an idea about looping an animation between two images. I wrote some code to do this in Igor Pro (sorry, no R this time…). This post describes how the code works and how you can make a similar animation. There was a reason to do this animation, but as a […]

3rd January 2020By Stephen Royle adventures in code, computing, fun, music ffmpeg, gif, gifski, Igor, IgorPro

Rip It Up: Grabbing movies from Twitter for use in ImageJ

Some great scientific data gets posted on Twitter. Sometimes I want to take a closer look and this post describes a strategy to do so. Edit: I received a request to take down the 3D volume images derived from the example dataset I used in this post. I’ve edited the post below so that is […]

25th August 2018By Stephen Royle computing, fun ffmpeg, FIJI, ImageJ, LUT, Twitter, youtube-dl
Recent Posts
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