99Sounds – Cinematic Transitions

A free collection of 50 transition sound effects crafted by Gonçalo Penas...

99Sounds proudly presets Cinematic Transitions, a collection of 50 free transition sound effects crafted by Gonçalo Penas.


We asked Gonçalo to describe the sound design process and some of the techniques he used to create Cinematic Transitions.

“I started my work on the transition sounds by generating a collection of ‘raw’ source files, including field recordings and synthesized sounds. I recorded random metallic mechanisms in a warehouse setting, some bicycles, passing-by vehicles, and various everyday objects I could get my hands on.

After gathering the source files, I converted them into a new batch of mangled sounds, mainly following a whoosh-type envelope. These mangled noises served as the source files for the second generation of sounds, which came from convolution processes, time-stretching, granular resampling, or pitch shifting. I also transformed and ‘destroyed’ many synthesized sounds (alarm sounds, bass hits, synth stabs, etc.) using a similar method.

The next step involved a lot of experimentation and sound exploration. I selected the best source sounds and layered them together to create transition sound effects that followed the theme of a sinister, cavernous, beastly ambiance. I tried to design organic sounds with plenty of movement and expression while aiming for an abstract sci-fi aesthetic.

The resulting transition SFX sounds are ready to use in any cinematic project. They are articulate, impactful, and carefully mixed to fill the frequency spectrum.”

For more cinematic sounds, check out our 99 Sound Effects collection.


Gonçalo Penas finished his bachelor Music Production and Technologies in ESMAE, Porto-based School Of Music and Performing Arts, in 2017. He released his first record on a Berlin/Bristol label, Subtext, in January 2019., followed by an EP in collaboration with Inês Malheiro (self-released) in 2020.

For the last four years, he started composing and working on sound design for the trailer industry. His work was released by publishers like Gothic Storm, Phantom Power, and Last Sonic Frontier. This is where he collaborated with the great Alessandro Camnasio to make an SFX toolkit for a composer called Warning Signs, released through Hypersamples. That release is highly recommended for anyone looking for more sounds like the ones in this pack.

In the last couple of years, Gonçalo also collaborated with the VST plugin developer Imaginando to make the factory library presets for FRMS, their amazing granular synth (which he has used as one of his go-to sound design tools ever since).


Cinematic Transitions contains 50 transition sound effects in 24-bit WAV format. The download size is 116 MB (ZIP archive).


  • 50 transition sound effects (whooshes, passbys, flybys, abstract, cinematic);
  • 24-bit WAV;
  • Royalty-free.