Audio Channel Resample

Audio Channel Resample | Online Free Tool | Elysia Tools

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 Channel Resample changes an audio file between mono and stereo while keeping its original format. Choose the target channel count, optionally set a 44.1 kHz or 48 kHz sample rate, and decide whether to keep metadata.

When to use

Convert a stereo recording to mono for voice-focused playback or simpler channel requirements.
Change a mono file to stereo when a two-channel output is required.
Adjust the sample rate to 44.1 kHz or 48 kHz while changing the channel configuration.

How it works

1Upload one supported audio file, such as MP3, AAC, M4A, OGG, Opus, FLAC, or WAV.
2Select Mono or Stereo as the target channel setting.
3Keep the original sample rate or choose 44.1 kHz or 48 kHz.
4Choose whether to preserve the file metadata, then generate the converted audio file.

Use cases

Prepare stereo recordings as mono files for voice playback and single-channel workflows.
Create stereo versions of mono audio when a two-channel file is needed.
Standardize audio sample rates at 44.1 kHz or 48 kHz while retaining the source format.

Examples

1. Convert a stereo voice recording to mono

Podcast editor

Background

A podcast editor has a stereo voice recording that needs a single-channel version for a mono-focused workflow.

Problem

The recording has two channels, but the required delivery uses one channel.

How to use

Upload the audio file, select Mono (1 channel), leave Sample Rate set to Auto, and keep metadata enabled.

Target Channels: Mono (1 channel); Sample Rate: Auto (keep original); Keep Metadata: enabled

Outcome

The tool produces an audio file in the same format with one channel and the original sample rate.

2. Set a mono recording to stereo at 48 kHz

Audio producer

Background

An audio producer needs a two-channel version of a mono source with a 48 kHz sample rate.

Problem

The source uses one channel and its current sample rate is not the required setting.

How to use

Upload the mono audio file, select Stereo (2 channels), choose 48 kHz, and leave metadata preservation enabled.

FAQ

What channel layouts can I choose?

You can choose Mono with 1 channel or Stereo with 2 channels.

Does the tool change the audio format?

No. It changes the channel count while keeping the same audio format.

Can I change the sample rate?

Yes. You can keep the original rate or select 44.1 kHz or 48 kHz.

Can I preserve metadata?

Yes. Metadata preservation is enabled by default, and you can turn it off.

What files can I upload?

Supported inputs include MPEG audio, AAC, MP4 audio, M4A, OGG, Opus, FLAC, and WAV files up to 100 MB.

Target Channels: Stereo (2 channels); Sample Rate: 48 kHz; Keep Metadata: enabled

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

Key facts

Overview

When to use

How it works

Use cases

Examples

1. Convert a stereo voice recording to mono

2. Set a mono recording to stereo at 48 kHz

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