Mix, Master, and Deliver at Scale
Studio-grade music mixing, mastering, and post-production in a single C++ library. From multitrack sessions to broadcast-ready deliverables.
Built for Products That Ship Audio
Creator Platforms
- ✓ Instant "sounds finished" button
- ✓ Higher publish rates & retention
- ✓ Reduce support burden
DAWs & Plugins
- ✓ Smart starting mix & master
- ✓ Settings-only mode for UIs
- ✓ Offline deterministic processing
Games & Social
- ✓ Consistent loudness & clarity
- ✓ Batch pipelines that scale
- ✓ Perfect for automation
Post-Production
Film & TV
- ✓ Dialogue enhancement & sidechain ducking
- ✓ Film, TV, and broadcast delivery formats
- ✓ EBU R128 loudness compliance
Advertising
- ✓ Aggressive voiceover enhancement
- ✓ Fast auto-ducking (AD Mix preset)
- ✓ ADMIX format for broadcast ads
Streaming & Podcasting
- ✓ YouTube and podcast loudness targets
- ✓ Streaming platform presets
- ✓ Pass/fail compliance reporting
Studio-Grade Sound
Modern DSP/ML trained by professional mix/mastering engineers. Cohesive balances, solid low-end, clear vocals.
Drop-In Workflow
Give us stereo (mastering) or stems (mixing). Get back a finished render, or just the settings.
Designed to Scale
Offline, deterministic processing. Perfect for queues, bulk jobs, and predictable QA.
How It Works
Send Audio
Provide stereo for mastering, or stems (2-32 tracks) for mixing.
Choose Output
Full render, stems, or settings-only (gain/pan/EQ/comp).
Ship It
Save the render or apply the settings in your own pipeline.
Developer Preview
Link the SDK
# CMake (example)
find_package(TonnSDK REQUIRED)
target_link_libraries(app PRIVATE TonnSDK::tonnsdk)
Process Audio
#include "TonnSDK.h"
int main() {
tonn::TonnSDK sdk(44100.0f);
sdk.addTrack("stems/drums.wav");
sdk.addTrack("stems/bass.wav");
auto result = sdk.process();
return 0;
}
#include "PostProductionSDK.h"
#include "PostProdTrackSettings.h"
int main() {
// Initialize for streaming delivery at 48 kHz
tonn::PostProductionSDK sdk(48000.0f, tonn::PostProdFormat::STREAMING);
if (!sdk.initialize("your_license_key")) {
std::cerr << sdk.getLastErrorMessage() << std::endl;
return 1;
}
// Configure dialogue track (enhanced, sidechain source for ducking)
tonn::PostProdTrackSettings dialogue(
tonn::PostProdGroupType::DIALOGUE_MAIN,
tonn::DialoguePriority::HIGH,
tonn::PostProdFormat::STREAMING);
dialogue.setDialogueEnhancementEnabled(true);
dialogue.setDialogueEnhancementMode(tonn::DialogueEnhancementMode::ENHANCE);
dialogue.setIsDuckingSidechain(true);
// Configure music track (ducked when dialogue plays)
tonn::PostProdTrackSettings music(
tonn::PostProdGroupType::MUSIC,
tonn::DialoguePriority::NORMAL,
tonn::PostProdFormat::STREAMING);
music.setDuckingEnabled(true);
music.setDuckingPreset(tonn::DuckingPreset::MEDIUM);
// Add tracks and process
sdk.addTrack("dialogue.wav", dialogue);
sdk.addTrack("score.wav", music);
tonn::PostProdResult result = sdk.process();
if (result.success) {
std::cout << "Loudness: " << result.measuredLUFS << " LUFS" << std::endl;
std::cout << "Meets spec: " << (result.meetsLoudnessSpec ? "yes" : "no") << std::endl;
}
return 0;
}
Explore the full SDK documentation for integration guides, examples, and API reference.
What You Need to Know
Inputs
- Music mixing: stereo stems (non-interleaved or files)
- Mastering: stereo mixdown
- Post-production: content-typed tracks (dialogue, music, SFX, foley, ambience, ADR, voiceover)
- WAV, FLAC, MP3, in-memory buffers
Outputs
- Full render (mixed/mastered)
- Delivery-format mastered mix
- Processed stems
- Loudness/LRA compliance report
- Settings JSON (gain, pan, EQ, comp)
Platforms
- macOS (arm64 & x86_64)
- Windows (x64)
- Linux (x86_64)
- C++17, CMake, gcc/clang/MSVC
Capabilities
🎚️ Multitrack Mixing
- • 2-32 tracks per session
- • Automatic gain, pan, EQ, compression
- • Settings export for DAW integration
- • Processed stems output
- • Musical style presets
✨ Stereo Mastering
- • Loudness optimization (LUFS targeting)
- • Frequency balance & width
- • Multiband compression & limiting
- • Streaming platform ready
- • Musical style presets
🎬 Post-Production Mixing
- • 10 native track types (Dialogue, Music, SFX, Foley, Ambience, ADR, Voiceover LP/HP, Other)
- • ADR-to-location matching (spectral, reverb, and dynamics)
- • Intelligent dialogue enhancement (Preserve, Enhance, AD Enhanced)
- • Automatic sidechain ducking (Light, Medium, Heavy, AD Mix, Custom)
- • Multi-track ducking support
- • DialoguePriority levels (Low, Normal, High, Critical)
📡 Delivery Format Mastering
- • 7 delivery format presets (Film, TV, Streaming, YouTube, Broadcast, ADMIX, Podcast)
- • EBU R128 and broadcast standards compliance
- • Programme and dialogue LRA measurement
- • Pass/fail compliance reporting
- • True peak limiting
SDK FAQ
How is the SDK licensed?
LicenseFeature (MIXING, MASTERING, POST_PRODUCTION, etc.). Contact info@roexaudio.com to discuss your use case and receive pricing details.What platforms are supported?
Can I get just the mixing/mastering settings?
Is this the same technology as the cloud API?
What audio formats are supported?
Can I request an evaluation license?
What post-production features are available?
PostProductionSDK module provides dialogue enhancement (3 modes: Preserve, Enhance, AD Enhanced), ADR-to-location acoustic matching, automatic sidechain ducking (5 presets plus custom parameters), 7 delivery format presets (Film, TV, Streaming, YouTube, Broadcast, ADMIX, Podcast), loudness and LRA compliance reporting, 10 native track types, reverb matching, and GPU-accelerated processing. See the Post-Production Features documentation for full details.Can I use both music and post-production features?
TonnSDK (music mixing and mastering) and PostProductionSDK (post-production) are independent classes. You can use either or both in the same application. Each requires its own license feature: LicenseFeature::MIXING/MASTERING for music, LicenseFeature::POST_PRODUCTION for post-production.Get SDK Access
Tell us about your project and we'll get back to you within one business day with licensing details and evaluation access.
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