Eliminates loud and prominent sibilants, as it makes vocals less harsh and easier on the listener's ears.
X1 .CL
The processing chain features an advanced Wideband AGC, 4-band EQ, Tone FX, Stereo FX, and 3-band processing. It includes a 4-band limiter with specialized high-end management to reduce streaming artifacts, plus a highly efficient final limiter with Over Drive mode for achieving a more solid sound when desired.
Starting from
Try and listen
12
00 €
/month (excl. VAT)
Sound possibilities that make a difference
A versatile AGC stage
Sound consistency is our hallmark. The x1 .CL features a robust AGC stage, ensuring optimal conditions for subsequent processing stages. Its AGC is based on a wideband structure, utilizing an advanced algorithm that enables smooth performance across all music genres and program types.
A processing core with distinctive features
The DNA of SOUND4 is punch and clarity. In the 3-Band stage, we've enhanced this with two important features: Fidelity control, which allows for sound that's either close to the source or colored in depth, and IMPACT, an exclusive SOUND4 algorithm that controls the punch of the sound.
Reducing streaming artifacts
In the 4-band limiter section, SOUND4's advanced algorithms intelligently process high-frequency content, significantly reducing digital artifacts commonly associated with compressed audio streams. This results in a cleaner, more transparent sound—particularly beneficial for digital broadcasting and online streaming platforms where maintaining audio quality across varying bitrates is crucial.
A robust final limiter
The final limiter in SOUND4 x1 .CL offers a range of unique features, whether you're aiming for a powerful sound that cuts through the radio dial or a subtle, refined audio experience. Its advanced capabilities make it highly adaptable to diverse audio needs and broadcasting scenarios. This versatility allows the limiter to excel in both bold, attention-grabbing applications and more nuanced, sophisticated sound processing.
R128 Loudness management
SOUND4 x1 .CL is meticulously designed to adhere to industry-standard loudness regulations while maintaining precise control over true peak levels. This advanced audio processing solution empowers users with the flexibility to adjust the loudness threshold according to their specific requirements, all while preserving the integrity and clarity of the original sound.
Listen X1.CL...
This player allows you to listen to some audio examples processed by x1 .CL. You can hear the difference between "Unprocess" and "Processed" files. This gives you just an idea as it's impossible to demonstrate all the capabilities of x1 .CL with just a few examples!
That's why we recommend trying it yourself with our 30-day demo license, which lets you process your own favorite sources through the amazing x1 .CL.
No one is offering such HTML GUI!
At SOUND4, we pay great attention to the user interface experience. Ergonomics is our aim, but we also provide functions that make users confident in their use of the product. You'll never feel lost, and our undo/redo function offers a solution to go back and forth if you're not satisfied with your changes.
Processing path
Powered by SOUND4's patented HQ Sound 192 kHz audio processing engine
- Input
-
Wide Band AGC
-
Tone FX
Eliminates loud and prominent sibilants, as it makes vocals less harsh and easier on the listener's ears.
-
Stereo FX
Eliminates loud and prominent sibilants, as it makes vocals less harsh and easier on the listener's ears.
-
3-Band Process
Eliminates loud and prominent sibilants, as it makes vocals less harsh and easier on the listener's ears.
-
4-Band Limiter
Eliminates loud and prominent sibilants, as it makes vocals less harsh and easier on the listener's ears.
-
Final Limiter
Eliminates loud and prominent sibilants, as it makes vocals less harsh and easier on the listener's ears.
- Output
Features that make the difference
Stack x1 .CL instances as needed!
SOUND4 x1 .CL is remarkably efficient in terms of CPU usage. Unlike other solutions on the market that require a complete CPU core or more and substantial memory, x1 .CL stands out as the only processor capable of being stacked up to hundreds of instances on the same architecture.
A comprehensive array of installation options
SOUND4 x1 .CL is the only virtual broadcast sound processor available for such a wide variety of installation types. It supports ASIO mode, Virtual Audio Driver mode, AoIP, Docker, and even runs natively with the Dynamics libraries!
The most advanced multi-standard streaming encoder (optional)
This option not only supports streaming to Icecast or Shoutcast but also offers a wide range of protocols including HLS, RTP, RTP/MPEG-TS, SRT, SRT/MPEG-TS, RTMP, RTMP/HTTP, and RTMP/ENCRYPTED. The encoder capabilities are equally impressive, supporting formats such as MP3, AAC, HE-AAC, HE-AAC v2, Opus, Vorbis, and FLAC, a truly a festival of encoding options.
Advanced and open metadata management
The streaming encoder features fully open and scriptable metadata management, ensuring easy deployment and broad compatibility with numerous solutions.
Kantar Media Watermarking (optional)
Kantar Media watermarking is poised to become the new standard for audience rating. The Kantar Media option seamlessly integrates with your x1 .CL output, eliminating the need for additional equipment. It's ready to tag your audio for all your audience measurement needs.
Specifications
Typical CPU use
The processing engine consumes 180 MHz. Typically and with a headroom for security, a user will be able to run 400 x1 .CL on a 16 cores processor running at 5 GHz. Of course, this depends on the processor's generation. Virtualized SOUND4 products are compatible with Intel & AMD, we always recommend the latest generations of processors for the best results in terms of capacities.
OS Compatible
Windows 10, Windows 11, Server 2019, Server 2022, Big Voice .CL prend en charge le pilote virtuel, ASIO et le moteur DLL natif pour les intégrations logicielles. La version AoIP supportant AES67, Ravenna, Livewire et Dante-AES fonctionne exclusivement sous Linux Debian, compatible avec les PC/serveurs conventionnels et le Raspberry Pi 5. La DLL native est également disponible pour les systèmes Linux.
Required System Specifications
For high density applications, we recommend CPU armed with AVX2 (or better AVX512F).
User interface
For making sound setup and controlling everything, X1.CL is armed with a super ergonomic user-friendly HTML5 GUI.
Ready to use in those architectures
Pricing
X1.CL, same price for each application: ASIO - Windows Driver - AoIP - DLL versions - Docker
21
00 €
/month (excl. VAT)
Monthly
Monthly payment
Yearly total: 252,00€
Options :
- Kantar Media Watermarking +6,00€ (Month)
- Streaming Encoder +6,00€ (Month)
- 28.5% SAVE
15
00 €
/month (excl. VAT)
1 year engagement
Yearly payment
Yearly total: 180,00€
Options :
- Kantar Media Watermarking +4,50€ (Month)
- Streaming Encoder +4,50€ (Month)
- 33.3% SAVE
14
00 €
/month (excl. VAT)
2 years engagement
Yearly payment
Yearly total: 168,00€
Options :
- Kantar Media Watermarking +4,00€ (Month)
- Streaming Encoder +4,00€ (Month)
42.8% SAVE
12
00 €
/month (excl. VAT)
3 years engagement
Yearly payment
Yearly total: 144,00€
Options :
- Kantar Media Watermarking +3,50€ (Month)
- Streaming Encoder +3,50€ (Month)
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Try our solutions free for 30 days!
99% of users who tried our solutions became subscribers—isn't that the best endorsement?
Be aware about all news...
30
Jul
30/07/2025
RCS is integrating SOUND4 x1 .CL in their Zetta Cloud solution
RCS is integrating SOUND4 x1 .CL in their Zetta Cloud solution
