Stable Portal Rift Hum — free sound effect
6.0s · WAV & MP3 · ambience · 163 downloads · quality 9.5/10 · royalty-free, CC BY 4.0
Credit it like this (the one condition of the free licence):
“Stable Portal Rift Hum” by BudgetPixel AI (https://budgetpixel.com/sfx/stable-portal-rift-hum-7aed6eca) — CC BY 4.0
About this sound
An AI-generated sound effect: “portal humming loop, stable rift”. Quality-checked before listing, free for commercial and personal projects — videos, games, podcasts, apps and client work. No royalties — just credit BudgetPixel AI.
Direct file: WAV · 44.1 kHz — both WAV and MP3 are on the download button.
Editor's note (9.5/10): This clean steady low hum matches the stable portal rift ambience brief nearly perfectly with no extraneous noise, clicks, or music.
Also searched as: stable rift ambience · sci fi portal sound · portal background
Sound effect licensing — common questions
- Is "Stable Portal Rift Hum" free to use commercially?
- Yes. "Stable Portal Rift Hum" is free for commercial and personal use under Creative Commons Attribution 4.0 (CC BY 4.0) — monetised YouTube videos, podcasts, games, apps, ads, streams, films and client work are all covered, with no fees, royalties or subscription. The one condition is the credit: “Stable Portal Rift Hum” by BudgetPixel AI (https://budgetpixel.com/sfx/stable-portal-rift-hum-7aed6eca) — CC BY 4.0
- Do I have to credit BudgetPixel to use "Stable Portal Rift Hum"?
- Yes — crediting BudgetPixel AI is the one condition of the licence, and downloading still needs no account. Put the credit line from this page wherever your project lists sources: a video description, end credits, show notes, or a game's credits screen.
- What format and length is "Stable Portal Rift Hum"?
- "Stable Portal Rift Hum" runs 6 seconds and downloads as WAV at 44.1 kHz, with MP3 on the same download button. Both formats carry the identical licence, so pick whichever your editor prefers — WAV for layering and pitch work, MP3 when file size matters.
- Can I use "Stable Portal Rift Hum" in a monetised YouTube video?
- Yes. Monetised video is explicitly permitted. BudgetPixel never registers library audio with Content ID, and because this sound effect is licensed to everyone non-exclusively under CC BY 4.0, no one can hold the exclusive rights Content ID requires. If a claim ever appears, dispute it and cite this page and its licence.
More low resonant sound effects
Similar sounds
Need a different take on this sound? Tweak the prompt and generate — free, no account.
Need it longer, or synced to your video? Make a longer version or add sound to a video in the audio workshop — a free account comes with 300 credits a month.
Get sound effects like this from your AI agent or your code
The whole library is searchable through the BudgetPixel MCP connector and the developer API, on every plan, Free included. A search costs 10 credits and returns each result's download link and credit line, so the 300 credits a free account gets every month cover 30 searches.
Ask your AI agent
Connect Claude, ChatGPT or Cursor to your BudgetPixel account once, with no API key, then ask in plain words:
Find a free sound effect like “Stable Portal Rift Hum” and give me the download link and its credit line.
Call the API
One request, with an API key from the developer console:
curl -G https://api.budgetpixel.com/v1/stock/sound-effects \
--data-urlencode "query=stable portal rift hum" \
-H "Authorization: Bearer $BUDGETPIXEL_API_KEY"Nothing in the library fits? On any paid plan the same connector and API generate sound effects to order, and the models also come as plugins for ComfyUI, WordPress and Cursor.