AI SFX Lab vs Async

AI SFX Lab is a web tool for generating custom sound effects from text prompts. Users can set duration, ask for variations, choose loop behavior and style, and specify sounds the AI should avoid. A prompt enhancer can refine a description before generation. The maker says results may differ between generations and recommends previewing clips, changing settings, and trying again. The free plan costs nothing and provides 100 credits each month, with generations up to five seconds; it has no downloads or commercial use. Starter costs $4.90 a year, billed annually at $59/year, and includes 600 monthly credits. Creator costs $9.90 a year, billed annually at $119/year, with 2,000 credits and up to three simultaneous generations. Pro costs $24.90 a year, billed annually at $299/year, with 7,000 credits and up to five simultaneous generations. These paid plans support clips up to 22 seconds and downloads in WAV, MP3, and FLAC. Monthly credits do not roll over. Commercial use is restricted to paid plans and governed by the maker’s terms and policies, which prohibit deceptive audio, rights infringement, and misleading emergency sounds. The product is aimed at creators, game developers, editors, podcasters, streamers, marketers, Foley artists, and creative teams.

Async is an online AI video editor where users create and edit videos through chat. It can remove filler, pauses, repetitions, bad takes, and awkward moments. Magic Dust reduces background noise and clarifies voices, while chat can generate B-roll, visuals, scenes, or music within an edit. Users can add subtitles and turn moments from longer videos into short-form clips. Async presents the workflow for ads, vlogs, explainers, podcasts, and other formats, and says it is built for creators and teams. Its browser-based remote interview feature supports up to 10 participants with separate tracks; local recording and automatic transcription are also listed. The Voice API supports text-to-speech and speech-to-text, including streaming over WebSockets. Async is available on the web and iOS, with no Android version listed. The Free plan is free and includes 10 lifetime AI credits, one hour of media upload to AI chat, exports up to 720p, and 2 GB storage. Paid pricing starts at $11.99/mo (annual).