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Audio Resample

· Last updated：2025-11-25

Change the sample rate of an audio file (e.g., 44.1kHz to 22.05kHz)

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Written by the Elysia Tools team
Audio312

Tool usage guide

Learn when to use this tool, what it supports, and how real users apply it.

Key facts

Category
Media
Input types
file, select, checkbox
Output type
file
Sample coverage
4
API ready
Yes

Overview

Audio Resample changes an audio file’s sample rate to a selected value from 8 kHz to 48 kHz, with optional channel selection and metadata preservation.

When to use

  • Prepare audio recorded at 44.1 kHz for a workflow that requires 22.05 kHz or another supported rate.
  • Convert stereo audio to mono for voice recordings or other single-channel uses.
  • Standardize sample rates across audio files before adding them to a project.

How it works

  1. 1Upload one supported audio file, such as MP3, AAC, M4A, OGG, Opus, FLAC, or WAV.
  2. 2Choose a target sample rate from 8, 12, 16, 22.05, 32, 44.1, or 48 kHz.
  3. 3Choose Auto to keep the original channel layout, or select mono or stereo.
  4. 4Enable or disable Keep Metadata, then create the resampled audio file.

Use cases

  • Adapt recorded speech to a lower sample rate for voice-focused workflows.
  • Convert stereo recordings to mono when a single audio channel is required.
  • Align audio sample rates across recordings before using them together.

Examples

1. Resample a voice recording to 22.05 kHz

Podcast editor

Background

A podcast editor has a WAV voice recording captured at 44.1 kHz and needs a 22.05 kHz version.

Problem

The recording uses a different sample rate from the target audio workflow.

How to use

Upload the WAV file, select 22.05 kHz as the target sample rate, leave channels set to Auto, and keep metadata enabled.

Target sample rate: 22.05 kHz; Audio channels: Auto; Keep Metadata: enabled

Outcome

The tool produces a resampled audio file at 22.05 kHz while keeping the original channel layout and metadata setting.

2. Convert stereo audio to mono

Voice content creator

Background

A creator has a stereo M4A recording that needs to use one audio channel.

Problem

The source file has two channels, but the intended workflow requires mono audio.

How to use

Upload the M4A file, select the required target sample rate, choose Mono, and decide whether to keep metadata.

FAQ

What sample rates are available?

You can choose 8, 12, 16, 22.05, 32, 44.1, or 48 kHz.

Which audio files can I upload?

Supported inputs include MP3, AAC, M4A, OGG, Opus, FLAC, and WAV audio files.

Can I change the number of audio channels?

Yes. You can keep the original channels, select mono, or select stereo.

What is the default target sample rate?

The default target sample rate is 22.05 kHz.

Can I preserve metadata?

Yes. Keep Metadata is enabled by default and can be turned off.

Hub

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Outcome

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