AudioAlter vs Runway
Side-by-side comparison · Updated October 2026
| Description | AudioAlter is an online audio toolkit for changing a file's pitch, tempo, volume or format, reducing background noise, and applying effects such as reverb and stereo panning. It suits a focused edit when you do not need a full multitrack editor. A podcaster might start with Noise Reducer, a musician might transpose a practice track, and a video editor might convert a soundtrack before importing it into an editing project. Start by choosing the tool for the change you need. AudioAlter's help page lists MP3, WAV, FLAC and OGG uploads up to 50 MB. Choose a file, adjust the available controls, submit it for processing, then download and listen to the result. Its browser interface works through server uploads rather than keeping processing entirely on your device. Keep an original copy so you can compare the result and avoid accumulating changes you cannot undo. The Pitch Shifter moves the whole recording up or down by a selected amount, from minus 24 to plus 24 semitones, while maintaining tempo. Twelve semitones equals one octave. This is useful for transposing a practice track, but it is not automatic note-by-note pitch correction or an Auto-Tune replacement. Tempo Changer handles playback speed separately. The toolkit also offers an equalizer, bass booster, trimmer, reverse playback, BPM detection, waveform images and spectrogram images. The slowed-and-reverb and 8D presets combine effects for a particular sound; they do not create new recording rights. AudioAlter's explicitly free Vocal Remover uses OOPS stereo-channel subtraction. It attempts to cancel material shared between the left and right channels, which can reduce a centered vocal. It is different from learned AI source separation: mono recordings, off-center vocals and poor-quality sources may work badly, and centered instruments can disappear along with the voice. Use it for a vocal-reduced practice track and inspect the result before relying on it. AudioStrip is a relevant comparison when you need AI vocal and instrumental separation or a paid batch workflow. Noise Reducer applies automatic general noise reduction for voice recordings without detailed settings. Compare a processed excerpt with the original, checking whether speech remains clear and natural. No hands-on output-quality or speed measurement underlies this listing. For detailed restoration, multitrack editing or repeatable bulk processing, assess a dedicated editor instead; AudioAlter does not document a batch or API workflow here. The terms require users to be at least 16 and to hold the necessary rights to uploaded material. They say processed files are deleted within three hours after upload, sometimes earlier, and the help page says files are accessible through their direct download URLs. Download results promptly and treat those URLs as access to the file. The separate privacy policy identifies Cash Cow IT AB as the owner and data controller and describes analytics and other personal-data retention; the three-hour file rule does not mean every associated record is deleted then. Check project permissions before uploading confidential audio or publishing a processed recording. | Runway is a creative platform for generating and editing video, images and related media. It is operated by Runway AI, Inc. For an image-to-video experiment, begin with a reference image and a short motion brief, then choose a model available in your account. A generated shot can help explore a scene or campaign direction, but it still needs review for continuity, faces, text and product details before joining a finished sequence. The Free plan provides 125 credits once and 5GB of asset storage. Runway's help page says these deposited credits do not expire, but they do not replenish after spending; a Free account cannot buy additional credits without upgrading. Videos generated on Free carry a watermark. The available free models change, so the initial balance does not guarantee a particular image-to-video model, duration or resolution. Check the current tool selector and the charge shown for the intended generation. Current individual monthly plans are Standard at $15 for 625 credits, Pro at $35 for 2,250 credits and Max at $95 for 9,500 credits. Annual billing displays monthly equivalents of $12, $28 and $76. Standard lists 20GB storage, up to three projects, five parallel video/image generations, no watermarks and 4K upscaling. Pro lists 100GB storage, up to five projects, fifteen parallel generations, a Brand Kit, a custom voice clone and Runway MCP. Max lists 500GB storage, up to ten projects, twenty parallel generations and one-month credit rollover. These are separate plan allowances, not unlimited video-generation promises. The paid model table provides a useful cost example: Gen-4.5 is listed at 60 credits for five seconds. On that setting, ten attempts would use 600 of Standard's 625 monthly credits. That calculation does not measure success rate or include other work, and it does not establish Free access to Gen-4.5. Budget retries and finishing work separately. Model choices and credit prices should be checked again when the project starts. Team and Enterprise have a separate pricing view. Team is shown at $69 per seat per month on monthly billing with a minimum of two users; Enterprise asks customers to contact sales for custom credits and requirements. Compare storage, shared projects, account controls and delivery needs before selecting a team plan. Developer API pricing is also separate from the individual plan comparison. Runway's terms say it does not claim ownership of compliant inputs or outputs and does not restrict commercial use of outputs under the agreement. This does not clear third-party rights or guarantee copyright protection. The terms also describe using content to improve or train models; Enterprise advertises a separate no-training condition, so assess the agreement applicable to your account before submitting confidential assets. We reviewed published product and plan information without benchmarking generated clips. Pika and Vheer offer alternative starting points for short image-to-video experiments with their own credits and export conditions. |
| Category | Audio Editing | Generative Video |
| Rating | No reviews | No reviews |
| Pricing | Free option | Freemium |
| Starting Price | Free | Free |
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| Tags | online audio editingpitch shiftingvocal reductionnoise reductionaudio conversion | AI video generationimage to videovideo editingcreative productionAI images |
| Features | ||
| Manual pitch shifting up to two octaves with tempo retained | ||
| Automatic noise reduction for voice recordings | ||
| Free OOPS stereo vocal reduction with source-dependent limitations | ||
| MP3, WAV, FLAC and OGG uploads up to 50 MB | ||
| Tempo, volume, equalizer, bass, reverb and stereo effects | ||
| Trimming, reverse playback and audio conversion | ||
| BPM detection, waveform images and spectrogram images | ||
| Slowed-and-reverb and 8D effect presets | ||
| AI video and image generation | ||
| Reference-based image-to-video workflows | ||
| Music, voice and sound effects generation on listed paid plans | ||
| Free tier with 125 one-time credits | ||
| Plan-dependent 4K upscaling and parallel generations | ||
| Shared Team and Enterprise workflows | ||
| Runway MCP on listed Pro and Max plans | ||
| View AudioAlter | View Runway | |
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