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Sunomusic

Complete Guide to Using Suno Upload And Extend Audio

Seamlessly extend any audio track with AI-generated continuation that matches perfectly.

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Overview

Suno Upload And Extend Audio takes an existing audio file and generates additional musical content that continues naturally from where the original ends. The extension matches the key, tempo, instrumentation, energy, and stylistic characteristics of the input, creating a seamless continuation.

This model is invaluable when you have a great track that is too short for your needs. Whether you need background music to fill a longer video, want to extend a chorus that ended too soon, or need a gradual outro that the original track lacks, the extension is generated to feel like a natural part of the original composition.

The model analyzes the musical context at the end of the input track and predicts what should come next based on genre conventions and the established musical patterns. The transition point between original and generated content is virtually undetectable.

Capabilities

  • Extends audio with seamless musical continuation
  • Matches key, tempo, and instrumentation of the original track
  • Maintains stylistic consistency across the transition point
  • Supports extending by variable lengths based on the needs
  • Works with both generated tracks and uploaded audio files

Use Cases

1

Lengthening background music tracks to match video duration

2

Adding outros or extended sections to songs that end abruptly

3

Extending loops and short musical ideas into full-length compositions

4

Creating longer ambient tracks for podcasts, streams, or relaxation content

Input Parameters

model
selectrequired

Select the model version for upload-and-extend generation.

Options
V5V4_5PLUSV4_5V4_5ALLV4
Default: V5
Audio File
filerequired

Click to upload audio file. Supported: MP3, WAV, OGG, M4A, FLAC, AAC.

instrumental
toggle

Generate instrumental audio without lyrics.

Default: false
prompt
textarea

Required in default mode, or in custom mode when instrumental is off.

Optionally guide the extension: describe how you want the music to evolve. For example, 'gradually fade to a peaceful ending' or 'build energy into a final climactic chorus.'

title
text

Required in custom mode.

style
textarea

Required in custom mode.

continueAt
number

Time point in seconds from which to start extending.

Default: 60
vocalGender
select

Optional vocal gender preference.

Options
MaleFemale
Default: m
defaultParamFlag
toggle

Enable custom parameters for upload-and-extend.

Default: true
styleWeight
slider

Optional. Style adherence strength (0-1).

Min: 0Max: 1Default: 0.65
weirdnessConstraint
slider

Optional. Creative deviation (0-1).

Min: 0Max: 1Default: 0.65
audioWeight
slider

Optional. Audio feature balance weight (0-1).

Min: 0Max: 1Default: 0.65
negativeTags
text

Optional styles or traits to avoid.

Tips & Best Practices

Provide musical direction
Extend in stages
Trim the input if needed

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