Sound Effect For Speed Ramp

[Narkis Eatman]

Butanyway, do you have any idea why that waveform might have gotten that off-centered after the editor applied what they applied? What could create such descentration? I know for a fact the original waveform is not off-centered.

This effect sounds similar to some effects used in cartoons. Sounds like a belt slipping in a low-RPM motor, if you ask me. Is it possible this is an effect that transforms soundwaves to a sound of a Record-player belt slipping or a Record-player needle slipping on the vinyl?

I achieved a new best, in my opinion, after separating the whole hook vocals from the mix. I realized that the first part of the edit is done with an equalizer that works similar to the Telephone preset, but without eliminating the low frequencies. After that, on the first third of length of the target vocals, a Sliding Time Scale is applied with initial -50% Tempo change and -12 semitones pitch shift. The second third is left as is and on the last third is applied another Sliding Time Scale is applied with final -25% Tempo change and -6 semitones pitch shift.

A rectifier is an electrical device that converts alternating current (AC), which periodically reverses direction, to direct current (DC), which flows in only one direction. The reverse operation (converting DC to AC) is performed by an inverter. The process is known as rectification, since it "straightens" the direction of current. Physically, rectifiers take a number of forms, including vacuum tube diodes, wet chemical cells, mercury-arc valves, stacks of copper and selenium oxide plates, se...

I captured some dialogue audio for a voice-over on a product video, and after editing out the white noise and background sounds in Audition, my audio clips sound pretty good. No buzz, no echo, no static. Just good clean and clear audio of the lady reading the script.

However, when putting it into the video in Premiere Pro CC 2017, I realized that she was speaking much too slow to fit the time requirements for the video, so I needed to increase the audio file speed by almost 10% to get it all to fit inside the time constraints and match the visuals. Under Speed/Duration for each audio clip, I selected "Maintain Audio Pitch" so I don't get the "chipmunk" sounding voice, but I noticed that there is now a serious "tunnel effect" to the audio. I tried to clean it up using the Essential Sound panel in Premiere, and after testing different options, chose the Dialogue option with Background Voice equalizer settings, the Background Walla Walla preset, Enhanced Speech Male and a Warm Voice reverb. It sounds much better now, but I still keep getting a slight "tunnel effect" versus the original audio clip set at normal speed.

Honestly, this workflow is clunky in Audition + Premier Pro. There should really be a way to stretch the two together in one go without having to round-trip it to Audition (one of Adobe's "Yeah, but we don't feel like doing that" 's). There are some other video applications (Vegas immediately springs to mind) that can handle this sort of work a lot better than Adobe software. Vegas was actually built from an audio engine (Acid Pro), so it's not surprising it is a bit better at some audio tasks.

You can speed up audio clips just like video clips in Pr. Afterwards, you can use the Pitch Shifter audio effect to pitch it down again. You'll have to figure out the math since audio is measured by octaves, not percentages. You can play around with the semi-tones until it sounds right if you don't have to be perfectly accurate.

What you call "tunnel sound" might be what audio experts call "phasing." That's a byproduct of many broadband noise reducers, as they use phase inversion to do their voodoo.

Man. This is lightyears better than the pitch shift option build into the speed ramp function itself. WHY? Thank you for this. It's almost too easy a solution yet here I am thanking you 4.5 years later. ha!

Ok, thanks. I was worried that was the case. I am speeding up parts of footage really fast and then let it go back to normal. Must be difficult to use pitch to get the audio to sync.

But what does the little button in the f-curves mean then?

@sundialsvc4

Yeah thanks for the advice, I guess the effect I want is somewhat similar to old movie-projectors. I need to do some fastforwarding through some of the footage, especially with the attentionspan on the web.

The literary reference goes over my head, american book?

Leverage the tools in Adobe After Effects to create unique speed ramps, constant speed change, and freeze frames. Apply these speed effects to make your video editing and motion design projects more dynamic and engaging.

To create a freeze frame in After Effects, first select a layer in your Composition. Put the playhead on the frame you want to freeze. Select Split Layer from the Edit Menu. The layer is duplicated and split at the playhead.

Use After Effects to quickly create speed ramps in your footage, which is great for highlighting action sports or sweeping camera moves. Right -click and select Enable Time Remapping. This creates keyframes at the beginning and end of the layer.

Command-Click (Control-Click for PC) on the line to add keyframes where you want to change the speed or freeze the action. A flat line freezes a frame, a steeper line speeds up, a shallower line slows down, and if you drag the keyframe lower than the previous keyframe, it plays in reverse. Remember to turn on Frame Blending and Ease Keyframes for a smoother result.

I just finished watching this nice little YouTube tutorial that gives one a bit more control on speeding up or slowing down PARTS of video (as opposed to just slowing down the whole thing) using time remapping, markers (splitting markers), etc. All really quite handy and gives more control. Caveat is that I can't figure out how to make it apply the slow-down/speed-up to the audio as well. If I don't use markers and time remapping and just do the right-click and select speed/duration that will apply it to the whole video... and audio. But that is not what I want.

And I want the audio changes its speed along with the video. I speed up/speed down video, so the audio do the same. The best example of how an audio should fit with a video is to run a video in MPC-HC (Media Player Classic) and speed it up or down by Ctrl + arrow-up/ Ctrl + arrow-down. I want to achieve the same effect in Adobe PP CC.

The first two do the same thing, that is change the speed of an entire clip by a constant amount. They are also intertwined, so if you change the speed and duration of a clip using the Rate Stretch Tool, the new values will also appear in the Speed/Duration panel.

Time remapping works differently from those tools, as it allows for speed changes over time. That is, you can set keyframes for 400%, 200% and 100% speed (as in your example) and Premiere will interpolate between those keyframes, creating a smooth speed transition. However, this has no effect on the audio stream of the clip. From the documentation:

I don't know if there is a reason why Adobe has designed it this way (I assume there are technical reasons for this), but at the moment there is no way to adjust audio speed alongside a video using time remapping.

An alternative would be to cut your audio in Adobe Audition and use a Dynamic Link to import it back into your Premiere Pro projekt. If I recall correctly, adjusting the audio alongside the video as described above is also possible in After Effects, but don't quote me on that ...

Essentially, you start with a long drone shot flying at normal speed. Then, to spice things up, the footage ramps up to a much faster speed and then quickly slows down again. This also helps to cover great distance in a quick amount of time, while also conveying that to the viewer and letting them see the surroundings.

First you will need to enable Time Remapping on your footage. (Don't forget to download the example clip included in the Project file for this tutorial!) Right click on your footage in the After Effects timeline and click Time>Enable Time Remapping.

Now you can add keyframes throughout your clip for where you would like your clip to speed up and speed down. Add one at each instance, speeding up and then again at the time you would like it to slow back down. Now move the keyframes for the faster "speed ramp" sections closer together, but leave the normal speed sections the same distance apart.

Easily smooth our your keyframes by selecting all of them and then Control-click on one of the keyframes. This will create roaming keyframes (the icons should now look round, like dots) and they will help smooth out the speed ramp animation.

Enable Frame Blending on your footage by clicking under the film-strip icon for your footage in the timeline. This will add natural motion blur onto your shot. You can preview this by also enabling Enabling Frame Blending on the timeline preview. (You will see this as the larger film-strip icon above your timeline, located next to Motion Blur.)

In some cases you may get a bit of color banding on your footage. You can easily remove this by adding an adjustment layer above your footage and then adding a Noise effect to it. Set the noise value to around 4% with color noise enabled.

What is a Speed Ramp effect without an awesome sound effect to go along with it? Be sure to accent your speed ramps with proper "whoosh" type sound design. I prefer sounds with more deeper bass tones that helps sell the wind passing by the viewer at high speeds. This Deep Whoosh sound effect from AudioJungle is a great example. I also really dig the cinematic tone of this Whoosh Impact. Search all of the various whoosh sound effects on AudioJungle to find the one that works best with your drone footage!

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