Batch audio processing

Design a chain once. Render every file, every version, in one batch job.

Branch and blend built-in DSP and your VST3 or AU plugins in one graph. Hear it live, then render every file in a folder to several differently processed versions, each with its own loudness target, format and filename.

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7-day free trial · Email required · No payment required · macOS + Windows

Buy Batchy — $149

One graph. Hear what changes.

Music demo · 0:59 · Sound on

Branch the effects. Blend the layers. Render the batch. Watch on YouTube

How it works

Build. Audition. Render the batch.

(enlarge)
01 Build
Branch the chain.

Drop in built-in processors and your plugins. Split the signal into parallel paths, blend them back in a Channel Mixer, or end each path in its own named output.
02 Audition
Hear it before you render.

Play any file through the graph and switch between the live signal and the processed result. Check it on the waveform, the spectrogram and the meters.
03 Render
Render every version.

Point it at a folder. Every file renders through every branch to every output you named, each with its own format, sample rate, bit depth, loudness target and filename.

Explore all features and processors

One batch job

One source in. Every deliverable out.

Batch editors apply one chain to each file per job, then write that result to one or more formats. Batchy branches the chain, so every output can carry its own processing as well as its own loudness target, format and filename. One batch job renders every version.

Sound design

Input I/Ometal_impact_01.wavSource file

One graph runs on every file in the folder.

Straight through, as a reference
Clean Outputmetal_impact_01_clean.wavWAV · 24-bit · source rate
DistortionHard clip · drive 5×
Crush Outputmetal_impact_01_crush.wavWAV · 24-bit · source rate
Filter EQLow-pass 4.2 kHz
DistortionBitcrusher
Lo-fi Outputmetal_impact_01_lofi.wavWAV · 24-bit · source rate

Sound design: one recording, three treatments. Every file in the folder gets all three.

Music mastering

Input I/O03_night_drive_mix.wavAlbum mix

Mastering EQ EQ

Bus Compression Dynamics

Master Limiter Dynamics→ −14 LUFS target
Streaming master Output03_night_drive_master.wavWAV · 24-bit · −14 LUFS · −1 dBTP
From the Master Limiter; kept at the source rate
FLAC archive Output03_night_drive_archive.flacFLAC · 24-bit · source rate
Branched before the limiter; no normalization
Vinyl pre-master Output03_night_drive_vinyl.wavWAV · 24-bit · source rate

Mastering: one chain that branches before the limiter, rendered for every track on the album.

Built around your work

Sound design and music mastering, at library scale.

01 / Sound design

Every variation of every sound, named.

Branch one recording into clean, crushed and lo-fi versions with distortion, pitch, filtering, convolution or your own plugins. Batchy renders every branch for every file in the library.

Parallel paths you can blend or keep separate
One named output per variation
The same graph for the next library

Explore sound design

Batchy graph branching one input into Clean, Crush and Lo-fi outputs — An example sound design graph: one input, three named outputs.

02 / Music mastering

Master the album. Deliver every version.

Audition one mastering chain on every track. Branch it for a streaming master at your LUFS target, a FLAC archive and a vinyl pre-master with more headroom, then render the album in one batch job.

LUFS targets measured to EBU R128
True-peak safety stage at −1 dBTP
TPDF dither at the final bit depth

Explore music mastering

Batchy mastering chain of EQ, bus compression and limiting feeding WAV Master and FLAC Archive outputs — An example mastering graph with two outputs: a WAV master and a FLAC archive.

More workflows

Game audio

Automate your SFX pipeline.

Engine-ready exports with per-output sample rate, bit depth and channels, plus a command line for your build.

Explore game audio → Podcast production

Loudness-match every episode.

One voice chain across the season, rendered to your loudness target.

Explore podcast production →

Command line

The same graph, from the command line.

Save the graph as a preset, then run it on any folder from a terminal, a script or a build step. There is no script language to learn.

Dry runs check paths and output collisions before rendering
JSON render reports for your pipeline
Parallel rendering with --max-threads

See the command line in action CLI reference

Terminal Utility

Batchy --batch-process \
  --input /audio/incoming \
  --preset /presets/auto_process.batchyfx \
  --output-dir /audio/processed \
  --render-report /audio/reports/latest.json \
  --fail-fast

Specifications

Plugins: VST3 on macOS and Windows; AU on macOS
Built in: 30+ audio, metering and visual graph nodes
Loudness: LUFS (EBU R128), RMS or peak targets; −1 dBTP true-peak safety on LUFS and RMS; TPDF dither
Formats: WAV, AIFF, FLAC, MP3 and OGG
Resolution: 22.05, 44.1, 48, 88.2, 96 and 192 kHz; 16, 24 or 32-bit float
Channels: Stereo through 7.1.4 surround panning; mono, stereo and surround conversion
Automation: Command line and headless rendering with JSON render reports
Systems: macOS 12+ (Intel and Apple Silicon); Windows 10/11 (64-bit)

Full specifications in the documentation

How Batchy compares.

Batch editors apply one chain to each file per job and can write that result to one or more formats. Of the batch editors compared here, only Batchy branches the chain inside a batch job, so one job renders differently processed versions of every file.

Capability	Batchy	WaveLab Pro 13	Sound Forge 2026	iZotope RX 12 Standard	Blue Cat PatchWork
Branching processing graph in a batch	Yes: branch, blend paths in a Channel Mixer, split by band or channel	No: one linear plug-in chain per batch (or each file’s own Master Section preset)	No: one ordered list of effects per job	No: modules in series	Parallel chains; no batch mode
Several formats per file in one batch job	Yes	Yes	Yes	One format per batch (RX 12 guide)	No batch mode (the standalone app records WAV in real time)
Differently processed versions per file from one batch job	Yes: every output has its own processing, loudness target, format and filename	No: one chain per batch (separate batches can be queued)	No	No: one module chain per batch	No batch mode
Audition before rendering	Yes: switch between live and processed playback	Partial: previews a 2–59 s processed excerpt of any file	Partial: preview in the editor	Partial: preview in the editor	Yes: real-time plugin host
Plugins in a batch	VST3 on macOS and Windows; AU on macOS	VST3 and VST2; no AU	VST2 and VST3, plus built-in processes	VST3 and VST2 on Windows; AU and VST3 on macOS (VST2 too, with Rosetta or an Intel processor)	No batch mode (hosts VST, VST3 and AU)
Loudness targets in a batch	LUFS (EBU R128), RMS or peak; −1 dBTP true-peak safety on LUFS and RMS	Yes: EBU R128 with true peak	Yes: Normalize in Loudness mode (LUFS, true-peak ceiling)	Yes: Loudness Control (Standard and Advanced)	No batch mode
Command line and automation	Yes: CLI with inputs, outputs, presets and JSON render reports	Watch folders controlled from the command line; built-in ECMAScript scripting; ActiveX scripting on Windows	Yes, via scripting: `-SCRIPT` runs JScript, VBScript or C# scripts	— not documented	— not documented
Platforms	macOS and Windows, on one license	macOS and Windows	Windows 11 only	macOS and Windows	macOS and Windows
Price	One-time: $149. All 1.x updates included.	$499.99 suggested retail (perpetual)	From $24.95 a month or $299.95 perpetual	$399; Advanced $1,399. Elements ($99) has no batch processing	$99

As of September 2026, from each vendor’s current documentation. “—” means not documented. PatchWork is included as the plugin-chaining alternative: a plugin host (plugin or standalone app) with no batch mode of its own; the standalone app records its output in real time. Prices are US list prices. Sources: WaveLab Pro: the WaveLab Pro 13 manual and the WaveLab 13 announcement; Sound Forge: the Sound Forge 2026 online help and the pricing page; iZotope RX: the RX 12 user guide and the RX Standard and RX Advanced pages; Blue Cat PatchWork: the PatchWork manual and product page.

WaveLab is a trademark of Steinberg Media Technologies GmbH. Sound Forge is a trademark of Boris FX. iZotope and RX are trademarks of iZotope, Inc. PatchWork is a product of Blue Cat Audio. Batchy & Friends is not affiliated with these companies.

Everything in one license

$149 once

One-time purchase, not a subscription.

Plugin host: VST3 on macOS and Windows, AU on macOS
Graph-based batch renderer with 30+ audio, metering and visual graph nodes
Loudness delivery: LUFS, peak and RMS targets, TPDF dither
WAV, AIFF, FLAC, MP3 and OGG output
Command line and headless rendering
macOS + Windows · two machines
All 1.x updates included
30-day money-back guarantee

Get Batchy — $149

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Download 7-day free trial

Before you buy.

Can I use my own plugins?

Yes. VST3 on macOS and Windows; AU on macOS. Third-party plugins are separately licensed.

Is there a free trial?

Yes. Download Batchy and select Start 7-day free trial on the welcome screen or in Manage License. Email required to start; no payment required. Downloading does not start the trial. A paid license is required after seven days.

Will it run on my computer?

macOS 12+ on Intel or Apple Silicon, or Windows 10/11 (64-bit). One license covers two machines.

Which file formats can Batchy write?

WAV, AIFF, FLAC, MP3 and OGG, on macOS and Windows. Each output sets its own sample rate (22.05, 44.1, 48, 88.2, 96 or 192 kHz) and bit depth (16, 24 or 32-bit float).

Which updates are included?

All 1.x updates are included with your license. A future major version, such as Batchy 2, is a separate product.

Does Batchy replace my DAW?

No. Keep your DAW or editor for recording and timeline edits. Use Batchy to design processing graphs and render batches.

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