Drag & drop audio files directly onto the node canvas
Real-time waveform visualisation with played/unplayed colour coding
Click or drag anywhere on the waveform to seek
Play / Pause / Stop transport controls
Current position and total duration displayed as HH:MM:SS.mmm
Optional normalisation toggle
Supports MP3, WAV, FLAC, OGG, AAC, M4A, OPUS
Compatible with ComfyUI's native audio pipeline — output connects directly to SaveAudio, PreviewAudio, and other audio nodes

Inputs

Name	Type	Description
`normalize`	BOOLEAN	Normalise waveform amplitude to peak 1.0 (default: false)

Outputs

Name	Type	Description
`audio`	AUDIO	Waveform tensor + sample rate, compatible with native ComfyUI audio nodes
`sample_rate`	INT	Sample rate in Hz
`duration_seconds`	FLOAT	Duration in seconds
`metadata`	STRING	File info: name, sample rate, channels, samples, size

🎧 Audio Player

A rich in-node audio monitor for listening to and analysing audio output from any upstream node. Receives a ComfyUI AUDIO input and displays four switchable visualisation modes, full transport controls, a stereo level meter, and a download menu. Created by qualar.

Visualisation modes — cycle through them with the button in the bottom-right corner:

Mode	Screenshot
Waveform — stereo RMS bar display, left channel in purple, right in orange, playhead scrubbing
Spectrum — real-time FFT frequency plot with labelled Hz axis
Analyzer — stereo goniometer (phase/width scope) and stereo correlation meter
Spectrogram — psychoacoustic heatmap scrolling in real time

Transport controls

Volume slider with mute button
Skip to start / skip to end
Play / Pause
Loop toggle

Download menu — click the ⋮ button to export the audio:

Download WAV (lossless, original quality)
Download MP3 at 128 / 192 / 320 kbps (encoded in-browser via lamejs — no server round-trip)
Download FLAC (lossless compressed, encoded server-side via soundfile)

Stats bar — always visible above the waveform: sample rate, mono/stereo, and integrated LUFS loudness.

Inputs

Name	Type	Description
`audio`	AUDIO	Audio to monitor — connects from any node that outputs AUDIO

Outputs

None — this is a terminal monitoring node.

📐 Resolution Master

Pick a standard resolution and orientation and get clean width/height integers out — no more mental arithmetic or hardcoded values.

Features

Visual orientation selector with landscape, square, and portrait icons
Covers SD through 8K with accurate pixel dimensions
Live preview of output width and height inside the node
Resolution dropdown with all standard presets

Resolution table

	SD (480p)	1K (720p)	1.3K (768p)	2K (1080p)	2.5K (1440p)	4K (2160p)	8K (4320p)
Landscape	720×480	1280×720	1344×768	1920×1080	2560×1440	3840×2160	7680×4320
Square	512×512	1024×1024	1024×1024	1536×1536	1920×1920	2048×2048	5760×5760
Portrait	480×720	720×1280	768×1344	1080×1920	1440×2560	2160×3840	4320×7680

Outputs

Name	Type	Description
`width`	INT	Output width in pixels
`height`	INT	Output height in pixels
`resolution_string`	STRING	e.g. `1344x768`

✂️ String Extractor

Extract individual lines from a multi-line text block by index, with automatic index advancement for batch workflows.

Features

Multi-line text input (scrollable, supports paste)
Integer index selector to choose which line to extract
Live status bar showing current line preview and mode
Selected line is highlighted in the textarea
text and index can optionally be wired from upstream nodes
Works correctly across scheduled batch runs — advancement happens before each prompt is queued

How the index works

index value	behaviour
`0`	Full textarea passed to output unchanged
`1` to `N` (valid line)	That line is extracted; a trailing space is added if missing
Greater than line count	Full textarea passed unchanged; index resets to `0`

Mode selector

Mode	Behaviour
`Keep`	Index stays the same after execution
`Increment`	Index advances to the next line after each execution; wraps from last line back to `1`
`Randomise`	Index is set to a random valid line number after each execution

The mode selector is disabled when the index is 0 or out of range.

Inputs

Name	Type	Description
`text`	STRING	Multi-line text block (can be wired in or typed directly)
`index`	INT	Line to extract, 0 = passthrough (can be wired in or set directly)
`mode`	COMBO	Keep / Increment / Randomise

Outputs

Name	Type	Description
`text_out`	STRING	Extracted line (or full text for index 0 / out of range)
`index_out`	INT	Updated index after applying mode

Typical workflow pattern

Set mode to Increment and queue multiple runs — each run extracts the next line automatically, starting from the displayed index value.

🔗 String Combine

Concatenate up to 10 string inputs into a single output. All content is preserved exactly — no trimming, no separators added between inputs.

Features

Up to 10 optional string inputs
Unconnected inputs are silently ignored
Strings are joined in order (1 through 10) with no modification
Add separators or spaces in upstream nodes if needed

Inputs

Name	Type	Description
`string_1` … `string_10`	STRING	Optional string inputs to concatenate

Outputs

Name	Type	Description
`combined`	STRING	All connected strings joined in order

Installation

Via ComfyUI Manager (recommended)

Search for axces2000 in the Custom Nodes section and click Install.

Manual

cd ComfyUI/custom_nodes
git clone https://github.com/axces2000/comfyui-axces2000.git
pip install -r comfyui-axces2000/requirements.txt

Then restart ComfyUI.

Requirements

ComfyUI (any recent version)
torchaudio — for Audio Loader
soundfile — for Audio Loader (fallback backend) and Audio Player (FLAC export)
scipy — for Audio Player LUFS metering (optional, falls back to RMS if not present)

File structure

comfyui-axces2000/
├── __init__.py
├── requirements.txt
├── pyproject.toml
├── Makefile
├── docs/
│   ├── audio_loader.png
│   ├── audio_player_1waveform.png
│   ├── audio_player_2spectrum.png
│   ├── audio_player_3analyzer.png
│   ├── audio_player_4spectrogram.png
│   ├── audio_player_5save.png
│   ├── resolution_master.png
│   ├── string_extractor.png
│   └── string_combine.png
├── audio_loader/
│   ├── __init__.py
│   ├── audio_loader.py
│   └── js/
│       └── audio_loader.js
├── audio_player/
│   ├── __init__.py
│   ├── audio_player_node.py
│   └── js/
│       └── audio_player_widget.js
├── resolution_master/
│   ├── __init__.py
│   ├── resolution_master.py
│   └── js/
│       └── resolution_master.js
├── string_extractor/
│   ├── __init__.py
│   └── string_extractor.py
├── string_combine/
│   ├── __init__.py
│   └── string_combine.py
└── js/
    ├── audio_loader.js
    ├── audio_player_widget.js
    ├── resolution_master.js
    ├── string_extractor.js
    └── lib/
        └── lame.min.js

Credits

Audio Player node created by qualar

README.md Unescape Escape

comfyui-axces2000

Nodes

🎵 Audio Loader

🎧 Audio Player

📐 Resolution Master

✂️ String Extractor

🔗 String Combine

Installation

Via ComfyUI Manager (recommended)

Manual

Requirements

File structure

Credits

License

README.md