AudioAlter vs Audioshake
Side-by-side comparison · Updated September 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. | AudioShake separates an existing recording into sources such as vocals, instruments, dialogue, music and effects. It also offers speech cleanup, speaker separation, lyric transcription and word-level lyric alignment. Use those outputs in editing, dubbing, remixing or audio analysis, and listen for leakage and changed sounds before delivery. Its lyric transcription is not a general-purpose speech-to-text service; separated speech can instead feed a dedicated transcription workflow. The developer API includes 10 credits on signup. Usage is billed per source-audio minute for each target model, rounding the duration up to the next minute. A 2 minute 10 second recording processed by vocals and instrumental models at one credit per minute each costs six credits. Instrument stems and lyric transcription/alignment cost one credit per minute; dialogue, effects and speech denoise cost 1.5, dereverb two, multi-voice and music removal ten, and music detection 0.5. Credit rates are not dollar prices. Dereverb also reduces noise, so avoid automatically paying for both cleanup models when one meets the task. Choose AudioShake Live for its professional web workflow, Indie for its artist-oriented route, the API for asynchronous jobs and batches, or a separately licensed Local Inference SDK for on-device or self-hosted integration. Check the target model's input limits: multi-voice accepts at most 1.5 hours, while lyric transcription and alignment accept at most 45 minutes. Pilot the required source material and integration before committing to a production pipeline. AudioShake's August 2026 terms identify Audioshake, Inc. Customers retain content ownership and must have the rights to upload and process it. The agreement permits service improvement and development uses of content, while promising not to sell it or use it to train models designed to generate new original musical compositions or sound recordings. That is a narrower promise than a ban on all model training. Confirm the applicable Order Form for third-party or service-bureau integrations and agree retention requirements for confidential audio. |
| Category | Audio Editing | Audio Editing |
| Rating | No reviews | No reviews |
| Pricing | Free option | Usage-Based |
| Starting Price | Free | N/A |
| Plans |
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| Use Cases |
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| Tags | online audio editingpitch shiftingvocal reductionnoise reductionaudio conversion | audio source separationmusic stem separationdialogue separationlyric alignmentaudio API |
| 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 | ||
| Music and instrument stem separation | ||
| Dialogue, music and effects separation | ||
| Speech denoise and combined dereverb/denoise | ||
| Multi-speaker separation | ||
| Lyric transcription and word-level alignment | ||
| Asynchronous API jobs, webhooks and batches | ||
| Separate Live, Indie and Local Inference SDK access | ||
| View AudioAlter | View Audioshake | |
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