Actions11
- Filters and Effect Actions
- Metadata Actions
- RTMP Restreaming Actions
- Transcoding Actions
- Video Processing Actions
Overview
This node provides audio transcoding functionality using ffmpeg. It allows users to convert audio files from one format or codec to another, adjusting parameters such as codec type, bitrate, and number of audio channels. This is useful in scenarios where audio files need to be standardized for compatibility, optimized for streaming, or compressed to reduce file size.
Practical examples include:
- Converting an MP3 audio file to AAC format for better compatibility with certain devices.
- Reducing the audio bitrate to create smaller files suitable for mobile streaming.
- Changing the number of audio channels from stereo to mono to save bandwidth.
Properties
| Name | Meaning |
|---|---|
| Audio Input | A valid audio URL or the name of the input binary field containing the audio to transcode. |
| Audio Output Name | The name of the output binary field where the transcoded audio file will be stored. |
| Audio Codec | The target audio codec to use for transcoding (e.g., "aac", "mp3"). |
| Transcoding Options | Collection of optional settings: - Audio Bitrate: Target bitrate in kbps (default 128). - Audio Channels: Number of audio channels (default 1). |
Output
The node outputs the transcoded audio file in a binary data field named according to the "Audio Output Name" property. The json output field typically contains metadata about the operation or the processed item, but the main content is the binary audio data representing the transcoded file.
Dependencies
- Requires an API key credential for accessing the underlying ffmpeg service.
- Depends on an external ffmpeg-based API or service configured within n8n credentials.
- No additional environment variables are explicitly required based on static analysis.
Troubleshooting
- Invalid Audio Input: If the provided audio URL is invalid or the specified binary input field does not contain audio data, the node may fail. Ensure the input is correct and accessible.
- Unsupported Codec: Specifying an unsupported or misspelled audio codec can cause errors. Verify codec names against supported codecs by the underlying ffmpeg service.
- Bitrate or Channel Misconfiguration: Providing non-numeric or out-of-range values for bitrate or channels might lead to failures. Use sensible numeric values.
- API Authentication Errors: Missing or incorrect API credentials will prevent the node from functioning. Confirm that the API key credential is properly set up in n8n.