Posts Tagged ‘music’

How to use ffmpeg to avoid having to open cinelerra to do simple video tasks, also I am starting a new channel on Youtube

November 14, 2016

I wanted to save the “workflow” I used for my last video.

Video? Oh yeah, I started a new Youtube channel. It’s just for practice. I want to get a cam-audio guitar practice vid up as close to daily as possible.

The channel is here:

I also have an old channel that I still upload to, in case you were wondering:

The first video I put up I used my full-featured nonlinear video-editing software of choice, cinelerra. But all I even *used* it for was to crop the beginning and end!

That first video is here:

I’m practicing an acoustic version of “The Suburbs” by Arcade Fire. I feel like the world is going to come to an end in a few days or weeks or months or years and in that mindset I am beginning to reinterpret some of the lyrics to this song in new ways.

For the second video, I was smarter, and did everything in the command line.

The second video is here:

I’m practicing “Suzanne” by Leonard Cohen. I’m pretty torn up about his passing and I want to learn his songs because I respect him so much.

Walker’s instructions for how to make simple videos:

  1. Record the video on your Flip cam.
  2. Get the file into a linux or mac computer with ffmpeg installed.
  3. Use the following command to take the audio out of the video:
    ffmpeg -i videofile.MP4 audiofile.wav
  4. Open the audio file in audacity. Apply noise reduction, then very light compression, then very light equalization (roll off extreme lows). Export to newaudio.wav
  5. Use the following command to remux the old video with the new audio AND trim the video:
    ffmpeg -i videofile.MP4 -i newaudio.wav -map 0:v -map 1:a -codec copy -ss 00:00:00 -t 00:04:00 remuxedvid.mkv
    Take note that one should replace “00:00:00” with the intended start time. Everything before that will be trimmed. “00:04:00” should be replaced with the total time. Everything after [start + total] time will be trimmed as well.

Compared to the first time around, I avoided 15 minutes of rendering and 15 minutes of reencoding. So using ffmpeg as much as possible and cinelerra as little as possible is usually the most time-optimal solution.

Also, by being sneaky I did all of this using the flip cam’s space. No need to delete temp files from two locations.

Walker’s new rule for doing video work: Do you need to composit something? Then use cinelerra. If you do not, then do not use cinelerra.


And Stuff Episode 009: This Podcast Was Enhanced in Adobe Photoshop Essentials

February 22, 2016

This time Cameron and Walker talk about cotton and a little about music and some other stuff.

Listen to And Stuff 009: This Podcast Was Enhanced in Adobe Photoshop Essentials on Overcast.


@andstuffpodcast on twitter


And Stuff Episode 008: Fast Paste Environment

January 7, 2016

This time we talk about … stuff?

Listen to And Stuff E08: Fast Paste Environment on Overcast.


@andstuffpodcast on twitter


Writing A Song

February 26, 2015

Thinking about writing a song. Working maybe 5 minutes each day on it. Doing a top down approach, making it not very overwhelming. Maybe you guys should write a song too.

Today I’m going to do literally nothing besides decide the basic form. For instance, verse-chorus-verse-chorus-chorus or something like that.

I like longer songs, but I don’t plan on having this show in the basic form. The song will end up lengthened by using extended versions of each section to add room for cadences to set up new sections. I.e. A verse that is usually 16 bars might be 18 bars only when it precedes a chorus.

So basically I can pick anything at random and it’ll probably work out fine, so here goes:







A little longer than I intended at first but whatever. Step one complete.

Piano Phasing Music

October 20, 2014

More process music inspired by Steve Reich.

Two part exploration of sounds that come out of phasing a C Major scale. In the first part the two pianos are playing at different tempos, as in Reich’s “Piano Phase”, but in the second part they are playing in different meters, which gives a similar but not identical sound to Reich’s “Clapping Music”. It’s techincally more similar to phasing music written by Robert Fripp and Adrian Belew, such as certain parts of “Frame by Frame”, recorded by King Crimson.

Lots of fun sounds letting themselves be heard here. I haven’t decided what kind of experiment to do for next week yet. I’m thinking maybe a take on Terry Riley’s “In C”?

Clapping Music/Tape Music hybrid

October 13, 2014

This is a process music composition inspired by Steve Reich. It’s based on a clapping pattern similar to his “Clapping Music”, but manipulated more in the style of tape music, for example, Reich’s “It’s Gonna Rain”. Editing the loops digitally gives the benefit of being able to loop video at the same time, but has the downside of missing a lot of the cooler sounds that would have come out with the imperfections of tape.

Relatively successful experiment, I suppose.

I’m thinking about uploading a minimalist music experiment every Monday. I already shot and edited the one for next week. :)

Disappear (old Porcupine Tree cover)

October 6, 2014

Another old recording from January 2011. This one is an old Porcupine Tree b-side that has somehow stuck with me. Acoustic guitar vs. dobro guitar. :)

Jegus, I used to have so much hair.

Give me some more song requests and subscribe to me on YouTube!


The New Year (old Death Cab for Cutie cover)

September 29, 2014

On December 31, 2010, I recorded this cover of “The New Year” by Death Cab for Cutie. Still probably one of my best mutli-track video+audio recordings to date. All acoustic instruments. :)

This was before I got my Flip cam and I recorded stuff with my old Canon point-and-shoot.

Four years ago is a strange amount of time.

Give me some more song requests and subscribe to me on YouTube!

Ambient Binary Bass

September 25, 2014

Made this video on Tuesday. I’m thinking the idea needs to be expanded to >30 minutes before the idea will go viral. Not really, but the idea does make me want to cut and paste together a one chord krautrock song of that length. Could probably only have three or four minutes of actual playing in it cut and pasted in weird ways.

The lower bass is counting binary numbers from zero to fifteen. Like if it’s playing A A E E then that’s 0011, which is three. The higher bass is playing five-digit numbers, so it’s actually in 5/4 time juxtaposed directly with the 4/4. Not that you hear the metrical mishmash because all the notes sound random anyway. The higher bass counts from 00000 to 11111, or zero to thirty-one. Thirty-two measures of 5/4 is 160 beats and sixteen measures of 4/4 is 64 beats, so I had the lower part repeat the count three times, but 3*64=192, so the higher part finishes 192-160=32 beats early. Math rock? Sort of?

The higher bass plays C# for a 0 and high A for a 1, so at any point you’re just hearing an A major chord: A C# E A, but with different notes missing at any point in time.

Give me some song requests and subscribe to me on YouTube!


Thinking about psychology and goals

September 24, 2014

Was listening to the Cracked Podcast yesterday. For a humor website their podcast is surprisingly serious. Another podcast I listened to (Hello Internet) compared them, and to a much lesser extent Buzzfeed (in essence hoping that Cracked’s present resembles Buzzfeed’s future), to newspapers and magazines in markets where there isn’t really enough news to fill up te pages, so you have the occasional really good feature article being subsidized by a dozen or so articles of fluffy drivel. Without selling people the crap articles, the newspaper wouldn’t exist at all, and without the newspaper at all, you wouldn’t have the better articles.

The podcast was talking about psychology and goals. Saying if you can’t ask yourself “why am I not doing something towards one of my goals this second” and can’t come up with a good reason, to just do that thing instead. Talking about the brain–how your present self does not care about the future self: if something bad will happen to them, that’s their problem, not your problem.

Thinking about blogging at the end of every day: “what did I do today as a step towards being who I want to be.” Who I want to be being a boutique guitar effect, amplifier, and synth builder, an accomplished player (or at least having produced records, whether they’re actually good or not) in those instruments, and also possibly someone with a minor youtube following.

Yesterday I produced a video from start to finish, but it’s not particularly interesting. But that doesn’t matter, what matters is putting in the time and the practice so I’ll know what I’m doing when a good idea actually occurs.

Today I’m showing up for class. Sort of relevant but sort of tangential to my first goal.

Anyway, the Cracked podcast is pretty good. Sorry for the lack of links, posting from the iOS WordPress app is handy, but still sub-optimal.


edit: Here is the episode in question of the Cracked podcast:

Here is the episode of Hello Internet where they talked about Buzzfeed relating to actual physical newspapers: