ComfyUI Node
Upload And Extend Audio · V6_MINI
Upload And Extend Audio OpenAPI Specification json { "code": 200, "msg": "All generated successfully.", "data": { "callbackType": "complete", "task_id": "2fac 9f72", "data": [ { "id": "e231 - - - - 8cadc7dc", "audio_url": "https://example.cn/ .mp3", "source_audio_url": "https://example.cn/ .mp3", "stream_audio_url": "https://example.cn/ ", "source_stream_audio_url": "https://example.cn/ ", "image_url": "https://example.cn/ .jpeg", "source_image_url": "https://example.cn/ .jpeg", "prompt": "[Verse] Night city lights shining bright", "model_name": "chirp-v3-5", "title": "Iron Man", "tags": "electrifying, rock", "createTime": "2025-01-01 00:00:00", "duration": 198.44 } ] } }
Upload And Extend Audio · V6_MINI
- audio
- url
- all_urls_json
- task_id
- raw_json
- credits_consumed
- credits_left
◄upload_urlhttps://storage.example.com/upload►
◄promptExtend the music with more relaxing notes►
◄instrumentaltrue►
◄continue_at60.00►
◄styleClassical►
◄titlePeaceful Piano Extended►
◄negative_tagsRelaxing Piano►
◄vocal_genderm►
◄style_weight0.65►
◄weirdness_constraint0.65►
◄audio_weight0.65►
◄persona_idpersona_123►
◄persona_modelstyle_persona►
◄lyrics[Verse]
Keep the melody flowing
Into a gentle bridge
[Chorus]
Let the piano rise and fall►
◄variety1►
◄timeout_seconds1200►
◄callback_url►
CategoryKIE Next/Audio/Suno/Music Generation
Inputs (17)
| Name | Type | Default | Description |
|---|---|---|---|
| upload_url | STRING | https://storage.example.com/upload | The URL of the source audio file to extend. Required. Source audio (`upload_url`) is enough to generate. Ensure the uploaded audio does not exceed 8 minutes in length. |
| prompt | STRING | Extend the music with more relaxing notes | Lyrics for the extended audio. Optional. - Used as lyrics only when `lyrics` is not provided. If `lyrics` is present, `prompt` is not used as lyrics. - V6, V6_MINI, and V6_WILD: Maximum 5000 characters. - Not required. Source audio (`upload_url`) is enough to generate. - Do not pass this parameter when `instrumental` is `true`. |
| instrumentalopt | BOOLEAN | true | Determines whether the audio is instrumental (without lyrics). Optional; defaults to `false`. - If `true`: generate instrumental music (no vocals). Do not pass `lyrics`, `prompt`, or `vocal_gender`. - If `false`: use `lyrics` as lyrics (fall back to `prompt` if `lyrics` is not provided). |
| continue_atopt | FLOAT | 60.00-10000–10000 | The time point (in seconds) from which to start extending the music. - Value range: greater than 0 and less than the total duration of the uploaded audio. - Specifies the position in the original track where the extension should begin. |
| styleopt | STRING | Classical | Music style, e.g., Jazz, Classical, Electronic. Optional. - Not required. Source audio (`upload_url`) is enough to generate. - Character limits by model: - **V6, V6_MINI & V6_WILD**: Maximum 1000 characters - **V5_5 & V5** (Discontinued): Maximum 1000 characters - **V4_5PLUS & V4_5** (Discontinued): Maximum 1000 characters - **V4_5ALL** (Discontinued): Maximum 1000 characters - **V4** (Discontinued): Maximum 200 characters |
| titleopt | STRING | Peaceful Piano Extended | Music title. Optional. - Maximum 100 characters. - Displayed in player interfaces and filenames. |
| negative_tagsopt | STRING | Relaxing Piano | Music styles to exclude from generation |
| vocal_genderopt | COMBO | m | Vocal gender preference for the singing voice. Optional. Use 'm' for male and 'f' for female. Based on practice, this parameter can only increase the probability but cannot guarantee adherence to male/female voice instructions. Do not pass this parameter when `instrumental` is `true`. |
| style_weightopt | FLOAT | 0.650–1 | Strength of adherence to the specified style. Optional. Range 0–1, up to 2 decimal places. |
| weirdness_constraintopt | FLOAT | 0.650–1 | Controls experimental/creative deviation. Optional. Range 0–1, up to 2 decimal places. |
| audio_weightopt | FLOAT | 0.650–1 | Balance weight for audio features vs. other factors. Optional. Range 0–1, up to 2 decimal places. |
| persona_idopt | STRING | persona_123 | Persona ID or Voice ID to apply to the generated music. Optional. Use this to apply a specific persona style to your music generation. To generate a Persona ID, use the [Generate Persona](https://docs.kie.ai/suno-api/generate-persona) endpoint to create a personalized music Persona based on generated music. To generate a Voice ID, use the [Generate Voice](https://docs.kie.ai/suno-api/suno-voice-generate) endpoint. |
| persona_modelopt | COMBO | style_persona | The persona model is only available for models version V5 (Discontinued), V5_5 (Discontinued), V6, V6_MINI, and V6_WILD. |
| lyricsopt | STRING | [Verse] Keep the melody flowing Into a gentle bridge [Chorus] Let the piano rise and fall | Lyrics for the extended audio. Optional. - Takes priority over `prompt` as lyrics. If omitted, `prompt` is used as lyrics when provided. - V6, V6_MINI, and V6_WILD: Maximum 5000 characters. - Not required. Source audio (`upload_url`) is enough to generate. - Do not pass this parameter when `instrumental` is `true`. |
| varietyopt | INT | 10–4 | Controls the diversity and stylistic variation of generated results. Optional. Integer range 0–4, default 1. - **`0`**: off (exact style) — fully off, strictly the same style - **`1`**: normal (balanced variety) — default, balances stability and diversity - **`2`**: high (distinct styles) — produces results with clearly different styles - **`3`**: extra (bold exploration) — higher variation, encourages bold exploration of different styles - **`4`**: max (unreasonably varied) — maximum diversity; results may differ in style very significantly |
| timeout_secondsopt | INT | 120030–7200 | — |
| callback_urlopt | STRING | Optional KIE callback URL. Leave empty for normal ComfyUI use. |
Outputs (7)
| Name | Type | Description |
|---|---|---|
| audio | AUDIO | — |
| url | STRING | — |
| all_urls_json | STRING | — |
| task_id | STRING | — |
| raw_json | STRING | — |
| credits_consumed | FLOAT | — |
| credits_left | FLOAT | — |