Convert WAV to MP3 API - ApyHub
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About

This WAV to MP3 converter Utility API allows you to convert your audio files or URLs pointing to WAV files into the widely supported MP3 format, making it the perfect choice for developers, content creators, and audio enthusiasts. This online audio converter API can efficiently handle uncompressed audio from waveform audio files, delivering high-quality MP3 outputs while reducing file size for faster streaming, sharing, or embedding in applications.
With support for all major operating systems and access via a web browser, this API enables you to simply upload your WAV files and start the conversion process in seconds. It also allows you to convert multiple files simultaneously, making batch processing of audio libraries seamless. The API maintains the sampling rate and audio codec integrity, ensuring that your converted MP3s sound crisp and professional across devices, including Windows Media Player and mobile platforms.
Designed with flexibility in mind, the API offers advanced settings to adjust bitrate, channels, and more, giving you full control over the final audio quality. Whether you’re building a web application, a mobile app, or integrating audio conversion into a desktop workflow, this tool simplifies the process of transforming WAV into MP3 while optimizing for compatibility and performance.
Try the API in the API playground now and discover how effortlessly you can streamline your audio files with one API call.
Select API Endpoints
Input
Output

API Playground

API Documentation

input file: output file
POST
https://api.apyhub.com/convert/audio/wav-file/mp3-file

Request example

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curl --location --request POST 'https://api.apyhub.com/convert/audio/wav-file/mp3-file?output=sample.mp3 \
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--header 'apy-token: {{token}}' \
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--header 'Content-Type: multipart/form-data' \
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--form 'file=@"sample-audio.wav"'
Method: POST
Content Type: multipart/form-data
Query Parameter(s)
AttributeTypeMandatoryDescription
outputStringNoThe name of the output file, defaults to sample.mp3.
Request Body
AttributeTypeMandatoryDescription
fileFileYesProvide the audio file that will be used as an input.
Sample Response
A successful request returns the generated file in the output parameter specified. If the request fails, the response contains an error code and a message to help determine what went wrong.

HTTP Response Codes

The method may return one of the following HTTP status codes:
Status CodeDescription
200The request was successful.
401Required authentication information is either missing or not valid for the resource.
400Invalid input - the audio file is corrupt or is not provided.
500If any unexpected error occurs while processing the request.

Authentication

All API requests to ApyHub services need to be authenticated. Currently we support tokens or basic authentication mechanisms. You can generate and view your existing credentials from your workspace settings (on the left side of the navbar) and go to “API Keys".
Points to note:
  • Credential secrets are generated on the fly and are not stored in plain text, so on generating a credential please save the secrets somewhere safe.
  • Use the apy-token as the header parameter to pass the token.
  • Use the Authorization header to send the basic authentication credentials.

Error codes

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{
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"error": {
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"code": 105,
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"message": "Invalid URL"
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}
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}
To search for a specific error code, enter the code in the search box below. Alternatively, you can click on the button to view a complete list of all error codes.
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