MP3
Useful for speech, music, podcasts, and recordings. Actual decoding depends on the codec inside the archivo and your navegador support.
Procesamiento en el navegador
Cambiador de velocidad de audio
Acelerar o ralentizar la voz y la música de 0,25× a 4× conservando el tono original.
Sin subir archivosMediaBunny WorkerMP3 salida
01
Privado por defecto
Your archivo stays in this navegador
02
Pitch preservation
Keep voices and music natural
03
Vista previa first
Comparar the source and resultado
Paso 1
Añadir your audio
Soltar one audio archivo here, or buscar your device.
Archivos are processed in this navegador on this device and are never uploaded.
Audio velocidad guide
Compatible audio formats
Change the velocidad of common compressed, lossless, and grabación formats. The default MP3 salida is easy to play, share, and use in learning workflows.
WAV
Useful for speech, music, podcasts, and recordings. Actual decoding depends on the codec inside the archivo and your navegador support.
M4A
Useful for speech, music, podcasts, and recordings. Actual decoding depends on the codec inside the archivo and your navegador support.
AAC
Useful for speech, music, podcasts, and recordings. Actual decoding depends on the codec inside the archivo and your navegador support.
FLAC
Useful for speech, music, podcasts, and recordings. Actual decoding depends on the codec inside the archivo and your navegador support.
OGG / Opus
Useful for speech, music, podcasts, and recordings. Actual decoding depends on the codec inside the archivo and your navegador support.
How to change audio velocidad en línea
No installation or account is required. Elegir a archivo, set the multiplier, vista previa the resultado, and descargar when it sounds derecha.
- 01
Añadir an audio archivo
Soltar in an MP3, WAV, M4A, AAC, FLAC, OGG, or Opus archivo, or buscar your device.
- 02
Elegir a velocidad
Use a preset such as 0.5×, 0.75×, 1×, 1.5×, or 2×, or set any value from 0.25× to 4× with the slider.
- 03
Keep or change the pitch
For speech and music, keep pitch preservation enabled so faster audio does not sound sharp and slower audio does not sound too low.
- 04
Procesar, vista previa, and descargar
The navegador processes the archivo in a local Worker. Vista previa the resultado, then descargar the MP3 when it is listo.
Common audio velocidad changer use cases
Changing velocidad is useful for learning, editing, content production, and organizing personal recordings—not just for making audio faster.
Velocidad up courses and podcasts
Listen at 1.25× or 1.5× to review lessons faster while keeping the speaker’s voice natural.
Create slow practice material
Slow down language lessons, pronunciation examples, or instrument exercises for careful repetition.
Review meetings and interviews
Scan a long grabación at a faster velocidad, then exportar a version that is easier to share or archive.
Create a timing variation
Adjust music, voice-over, or cue audio to fit a vídeo editar, short clip, or social post.
Your audio stays on your device
The Archivo API and MediaBunny Web Worker read, retime, and encode the audio in your navegador. Source archivos are not uploaded to MediaKit servers; removing a archivo or closing the page releases local object URLs and Worker resources.
FAQ
Audio velocidad changer FAQ
Are my audio archivos uploaded?
No. Velocidad procesando runs locally in your navegador, and the seleccionado archivo is only passed to a Worker on this device.
Which entrada formats are compatible?
MP3, WAV, M4A, AAC, FLAC, OGG, and Opus are compatible in common navegador environments. Decoding still depends on the codec inside the archivo.
How do I keep the voice from changing pitch?
Turn on Keep original pitch. The time-stretch path changes duration while keeping speech and music closer to their original key.
What velocidad rango is available?
The actual rango is 0.25× to 4×. Try 0.5× for practice and dictation, or 1.25× to 2× for lessons and podcasts.
Why can large archivos take longer?
The navegador must decode, retime, and re-encode the audio. Larger archivos and devices with less memory need más time, so keep the tab open.
Why is the default salida MP3?
MP3 plays on most phones, computers, cars, and sharing platforms. Keep the original WAV or FLAC when you need lossless editing later.
Keep working with audio
Related herramientas and tutorials
Trim audio
Eliminar unwanted sections antes changing the velocidad.
Abrir herramientaConvertir audio formato
Exportar the resultado as WAV, FLAC, M4A, AAC, OGG, or Opus.
Abrir herramientaComprimir audio
Reduce the archivo tamaño antes sharing or uploading.
Abrir herramientaExtract audio from vídeo
Take speech, music, or interviews out of a vídeo first.
Abrir herramienta