SOUND4 Helpdesk/IMPACT FM .CL Downloads

IMPACT FM .CL Downloads

All you need for installing your IMPACT FM .CL
Application versions, Upgrades & Version history
 

IMPACT FM .CL ASIO version downloads

Windows Compatible - 64 bits - Runs on 10, 11, server 2019, 2022
Audio Stream Input/Output (ASIO) is a computer audio interface driver protocol for digital audio specified by Steinberg, providing high data throughput, synchronization, and low latency between a software application and a computer's audio interface or sound card. Thanks to the ASIO version, users can use the IMPACT FM .CL without hearing any latency!

Preview version v2.0.1 - 2026-11-03:
💰

Featuring New Technology for lower CPU usage, more capacity, and lower cost!

This first version includes our latest optimizations, significantly reducing CPU usage. Make the most of your existing infrastructure and lower your hosting costs.
IMPACT FM .CL Processing Engine Librairies changelog

2.0

2.0.1

(Preview - 2026-01-03)
  • New clipper, clearer sound
  • Correct MPX overshoots depending on RDS/Embed pilot configuration
  • Security updates

2.0.0

(Preview - 2026-10-12)
  • Much lower CPU usage
  • Audio:
    • Processing and setting ranges aligned with the IMPACT FM hardware processor (notably bass enhancer, MPX power, AGC, R128)
    • Same sound whatever the audio block size
    • Separate FM and MPX diversity delays
  • Faster and more reliable shutdown, various fixes
  • Web interface: safer login, setting descriptions in the setup dialogs
  • Security updates
  • WARNING: audio changes on existing presets (closer to the IMPACT FM hardware processor)
Linux compatibility : needs GLibC 2.31 and kernel 5.4
 

IMPACT FM .CL Driver version downloads

Windows Compatible - 64 bits - Runs on 10, 11, server 2019, 2022
Let's explore how your IMPACT FM .CL instance integrates with your Windows audio driver. It operates as a soundcard with both input and output capabilities, with IMPACT FM .CL at its heart. The installation process creates a virtual audio driver expertly crafted by SOUND4 ensuring optimal reliability.

Preview version v2.0.1 - 2026-11-03:
💰

Featuring New Technology for lower CPU usage, more capacity, and lower cost!

This first version includes our latest optimizations, significantly reducing CPU usage. Make the most of your existing infrastructure and lower your hosting costs.
IMPACT FM .CL Processing Engine Librairies changelog

2.0

2.0.1

(Preview - 2026-01-03)
  • New clipper, clearer sound
  • Correct MPX overshoots depending on RDS/Embed pilot configuration
  • Security updates

2.0.0

(Preview - 2026-10-12)
  • Much lower CPU usage
  • Audio:
    • Processing and setting ranges aligned with the IMPACT FM hardware processor (notably bass enhancer, MPX power, AGC, R128)
    • Same sound whatever the audio block size
    • Separate FM and MPX diversity delays
  • Faster and more reliable shutdown, various fixes
  • Web interface: safer login, setting descriptions in the setup dialogs
  • Security updates
  • WARNING: audio changes on existing presets (closer to the IMPACT FM hardware processor)
Linux compatibility : needs GLibC 2.31 and kernel 5.4
 

AoIP Download (Debian package)

Connect BIG VOICE .CL, IMPACT .CL, IMPACT FM .CL & x1 .CL in an AoIP architecture
The main challenge for the AoIP version is achieving low latency for live applications. This requirement necessitates using the Linux operating system, there are no Windows-compatible versions.
AoIP .CL is compatible with AMD64 and ARM64 hardware
SOUND4 AoIP can be installed on any Debian-compatible distribution, from Raspberry Pi 5 to conventional PC computers or servers
WARNING
We increasingly recommend using Debian versions without a graphical environment to maximize low-latency performance.

Latest Release versions v1.1.0 - 2026-10-08

AoIP .CL changelog

1.1

1.1.0

(Public - 2026-10-08)
  • Add headless JSON control interface (HTTP /json, Digest authentication)
  • Stricter access rights for non-admin users
  • Validate and repair settings, show streams that cannot run
  • Various fixes
  • Security updates

1.0

1.0.17

(Public - 2026-09-21)
  • Keep the web interface responsive while a stream restarts
  • Add support for APTmpX encoder
  • Various fixes
  • Security updates

1.0.16

(Public - 2026-06-18)
  • Add editable application name
  • Various fixes

1.0.15

(Public - 2026-06-01)
  • Various fixes
  • Constrain OutputName per LanMode
  • Security updates

1.0.14

(Public - 2026-05-29)
  • Support ST2022-7 (Ethernet redundancy)
  • Improve error resilience and realtime optimisations
  • Optimisation of the web interface
  • Add support for Ipsos plugins

1.0.13

(Public - 2026-02-16)
  • New license display screen
  • ST2110-30 full support
  • Security updates

1.0.12

(Public - 2025-10-28)
  • Add support for future plugins (MicroMPX)
  • Security updates

1.0.11

(Public - 2025-06-30)
  • Detect multi-source conflicts
  • HTML optimization
  • Security updates

1.0.10

(Public - 2025-05-12)
  • Do not change network interface automatically when not available
  • Backup include plugins

1.0.9

(Public - 2025-05-06)
  • Correct Livewire advertising's network interface for sending

1.0.8

(Public - 2025-05-02)
  • Correct creation of initial configuration

1.0.7

(Public - 2025-04-18)
  • Fixes to receive mono streams
  • Corrections when stream changes
  • Instances are created even without stream received
  • HTML interface improvement
  • Complete backup and restore of configuration, presets, streaming and watermarking

1.0.6

(Public - 2025-04-03)
  • Correction for AES67 streams and SAP advertising
  • Add CPU usage information

1.0.5

  • First public version

Only two steps are necessary for installing SOUND4 AoIP:

  1. Configure SOUND4SOFT repository
wget https://deb.sound4soft.com/sound4soft-archive-keyring.deb
sudo dpkg -i ./sound4soft-archive-keyring.deb
sudo apt update
  1. Installing SOUND4 AoIP.CL
sudo apt --install-recommends install sound4.aoip.cl
You are ready now for configuring your AoIP .CL, simply access the Raspberry Pi's IP address from any computer on the same network to open the user-friendly interface (no port needed).
If you want more details or need to customize your installation, a detailed installation procedure is available here: Link
 

IMPACT FM .CL Librairies version downloads

Compatible Win-32, Win-64, Aarch-64, Armv7, x86-64
SOUND4 processing engines function as libraries, serving as the main processing components in all virtualized versions. These libraries are natively used to integrate our virtualized products as third-party solutions for software editors, ISPs, streaming companies, and broadcasting companies. Naturally, several of our esteemed manufacturing partners also recognize the immense potential of integrating SOUND4 products into their own offerings…
These libraries are intended for advanced users. Help files are integrated with all versions to support SOUND4 processing engine integrations.

Librairies:


Preview versions v2.0.1 - 2026-11-03:
💰

Featuring New Technology for lower CPU usage, more capacity, and lower cost!

This release includes our latest optimizations, significantly reducing CPU usage. Make the most of your existing infrastructure and lower your hosting costs.
IMPACT FM .CL Processing Engine Librairies changelog

2.0

2.0.1

(Preview - 2026-01-03)
  • New clipper, clearer sound
  • Correct MPX overshoots depending on RDS/Embed pilot configuration
  • Security updates

2.0.0

(Preview - 2026-10-12)
  • Much lower CPU usage
  • Audio:
    • Processing and setting ranges aligned with the IMPACT FM hardware processor (notably bass enhancer, MPX power, AGC, R128)
    • Same sound whatever the audio block size
    • Separate FM and MPX diversity delays
  • Faster and more reliable shutdown, various fixes
  • Web interface: safer login, setting descriptions in the setup dialogs
  • Security updates
  • WARNING: audio changes on existing presets (closer to the IMPACT FM hardware processor)
Linux compatibility : needs GLibC 2.31 and kernel 5.4
 

MicroMPX libraries downloads

MicroMPX extension supports only Live mode.

Librairies:


Preview versions v1.0.0 - 2026-10-13:
MicroMPX Librairies version changelog

1.0

Linux compatibility : needs GLibC 2.31 and kernel 5.4

1.0

(Preview - 2026-10-13)
  • Lot of optimization in real-time tasks, and better real-time responsiveness
  • Many fixes in various places for rare bugs
  • Security updates
 

Stream .CL libraries downloads

Stream.CL extension supports only Live mode.

Librairies:

Release versions v1.1.15 - 2026-06-18:

Preview versions v2.0.0 - 2026-10-13:
Stream .CL Librairies version earlier versions
1.1.13
1.1.12
1.1.11
1.1.6
1.1.5
1.1.4
1.1.3
1.1.2
1.1.1
1.1.0
1.0.2
1.0.1
1.0.0
Stream .CL Librairies version changelog

2.0

Linux compatibility : needs GLibC 2.31 and kernel 5.4

2.0.0

(Preview - 2026-06-13)
  • Lower CPU usage, faster and more reliable shutdown
  • Fixes for RTMP, HLS / MPEG-TS and metadata
  • New: ad-break signaling (copyright bit per stream)
  • Security updates

1.1

Linux compatibility : needs GLibC 2.31 and kernel 5.4

1.1.15

(Public - 2026-09-08)
  • Lot of optimization in real-time tasks, and better real-time responsiveness
  • Many fixes in various places for rare bugs
  • Security updates

1.1.14

( 2026-04-16)
  • Fix Icecast error when many instances are opened

1.1.13

(Public - 2026-03-10)
  • Security updates

1.1.12

(Public - 2026-01-26)
  • Correct Shoutcast V1 metadata sending
  • Security updates

1.1.11

(Public - 2025-12-04)
  • Security updates

1.1.10

(2025-12-01)
  • Add individual gain per stream
  • Add safety clipper
  • HTML interface improvements
  • Security updates

1.1.9

(2025-11-18)
  • Correct extra Kantar usage with same sampling-rate

1.1.8

(2025-11-13)
  • Support for extra Kantar watermarking
  • Security updates

1.1.7

(2025-07-04)
  • Metadata: in TCP server, drop the first connection when a new one opens
  • Metadata: better support for single connection sending XML or JSON multiple times
  • Minor logging corrections

1.1.6

(Public 2025-06-30)
  • Better lock-free processing, avoiding some spurious high CPU usage on some x86 processors
  • Security updates
  • Library:
    • Corrections in stopping plugins
    • Correct little memory leaks on exit

1.1.5

(2025-04-18)
  • Security updates
  • Correct PresetManager_InformChange which was not working
  • Cleanup and improve documentation

1.1.4

(Public 2025-03-31)
  • Multiple fixes, notably on instances creation/destruction and storage errors, and log headers
  • Improve performances (lock-free real-time processing)
  • Library:
    • Add parameter STREAM_THREAD_PRIO to force streaming threads' priorities
    • Fix possible long initializing tasks running in processing's thread

1.1.3

(2024-12-28)
  • Library:
    • Better handling of all JSON errors in protocol

1.1.2

(2024-10-10)
  • HLS corrections
  • Various minor encoding fixes
  • Minor security update
  • Library: support for Darwin/arm64 (beta)

1.1.1

(2024-07-19)
  • Library: Reuse CA certificate configuration from main process for streamers.

1.1.0

(2024-06-07)
  • ARM64: support SVE2 optimisations
  • Correct possible crash with license proxy

1.0

1.0.2

(2024-04-26)
  • Licenses: correction to be more error resilient

1.0.1

(2024-04-05)
  • Optimize license retrieving (especially in file mode)
  • Library:
    • Correct possible data race error in multiple instances
    • Correct memory leak on license failure

1.0.0

(Preview - 2024-02-29)
  • MPEG-TS: send metadata in ID3 PES stream
  • Can set cut-off frequency for codecs which support it
  • MP3: can disable bit-reservoir
  • Licenses: dynamic refresh validity date

0.9

Preliminary testing versions.
Linux compatibility : needs GLibC 2.19 and kernel 3.13

0.9.5

(Testing 2024-02-15)
  • Library:
    • Correction for loading extensions in a different folder

0.9.3

(Testing 2024-02-07)
  • Library:
    • File change watching is not possible in container's volumes : avoid crash

0.9.2

(Testing 2024-02-02)
  • Metadata TCP server : Correct metadata parsing when received by chunks in XML or JSON modes.

0.9.1

(Testing 2024-02-01)
  • Metadata TCP server : listen both IPv4 and IPv6 in Windows

0.9.0

(Testing 2024-01-25)
  • First version for testing
 

KANTAR .CL Libraries downloads

KANTAR.CL can work only on :
  • Windows x86_64
  • Linux x86_64
  • Linux ARM64 (since 1.1.1)
It is using KANTAR libraries, which are compatible with Ubuntu 22.04 LTS (since 1.1.1) or Debian 9 (before 1.1.1).

Librairies:

Release versions v1.1.14 - 2026-06-18:
Preview versions v1.2.0 - 2026-10-13:
KANTAR .CL Libraries version earlier versions
1.1.13
1.1.12
1.1.11
1.1.6
1.1.5
1.1.4
1.1.3
1.1.2
1.1.1
1.1.0
1.0.10
1.0.9
1.0.8
1.0.7
1.0.6
1.0.4
1.0.3
1.0.2
1.0.1
1.0.0
KANTAR .CL Libraries version changelog

1.2

Linux compatibility : needs GLibC 2.31 and kernel 5.4

1.2.0

(Preview - 2026-10-13)
  • More robust real-time operation
  • Faster and more reliable shutdown, various fixes
  • Security updates

1.1

Linux compatibility : needs GLibC 2.31 and kernel 5.4

1.1.14

(Public - 2026-06-16)
  • Online license use new Fifty5Blue URL
  • Lot of optimization in real-time tasks and UI, and better real-time responsiveness
  • Security updates

1.1.13

(Public - 2026-03-10)
  • Security updates

1.1.12

(Public - 2026-01-26)
  • Security updates

1.1.11

(Public - 2025-12-04)
  • Security updates

1.1.10

(Preview 2025-12-01)
  • Little fixes of 1.1.9
  • HTML interface improvements
  • Security updates

1.1.9

(2025-11-19)
  • Correct clipping overflow (when used in Stream)

1.1.8

(2025-11-13)
  • Support for plugins in plugins (extra Kantar in Stream)
  • Security updates

1.1.7

(2025-07-04)
  • Minor logging corrections

1.1.6

(Public 2025-06-30)
  • Security updates
  • Library:
    • Corrections in stopping plugins
    • Be sure to force Kantar threads affinity as process' thread

1.1.5

(Public 2025-04-18) (KANTAR CERTIFIED)
  • Security updates
  • Correct PresetManager_InformChange which was not working
  • Cleanup and improve documentation

1.1.4

(Public 2025-03-31)
  • Watermarking threads' priorities follows main process' priorities
  • Multiple fixes, notably on instances creation/destruction and storage errors
  • Improve performances (lock-free real-time processing)
  • Improvement of general delay when extension is not in service

1.1.3

(2024-12-18) (KANTAR CERTIFIED)
  • Library:
    • Better handling of all JSON errors in protocol

1.1.2

(2024-10-10)
  • Minor security update

1.1.1

(2024-07-19)
  • Update KANTAR library to version 9.0 (Ubuntu 22.04 LTS/glibc 2.35)
  • Correct protection when destroying/reconfiguring the watermarking

1.1.0

(2024-06-07) (KANTAR CERTIFIED)
  • Correct possible crash with license proxy

1.0

Linux compatibility : needs GLibC 2.19 and kernel 3.13

1.0.11

(2024-04-26)
  • Licenses: correction to be more error resilient

1.0.10

(2024-04-05)
  • Optimize license retrieving (especially in file mode)
  • Library:
    • Correct possible data race error in multiple instances
    • Correct memory leak on license failure

1.0.9

(2024-03-15)
  • Avoid logging errors when watermark is off

1.0.8

(2024-03-08)
  • File mode only: do not allow running without proper license, if watermarking is on
  • Library:
    • Standardize distribution files across distributions

1.0.7

(Preview - 2024-02-29)
  • Licenses: dynamic refresh validity date

1.0.6

(Testing 2024-02-15)
  • Library:
    • Correction for loading extensions in a different folder

1.0.4

(Testing 2024-02-07)
  • Library:
    • File change watching is not possible in container's volumes : avoid crash

1.0.3

(Testing 2024-02-02)
  • If online license is used, check connection to KANTAR license server before calling SDK to avoid long timeouts.

1.0.2

(Testing 2024-02-01)
  • Default mode to Offline license (temporary fix for closed networks, if KANTAR_OfflineLicense is not set to 1)
  • Library mode:
    • Correct multiple library load/unload

1.0.1

(Testing 2024-01-25)
  • Various minor fixes on GUI display
  • Library mode:
    • Use parameters instead of metadata for initial setup
    • Various possible memory leaks corrected

1.0.0

(2023-11-02) (KANTAR CERTIFIED)
  • Support both online and offline licenses
  • Support Live and File modes
  • Update KANTAR library 8.2 (Debian 9/glibc 2.24/kernel 4.9)