ZIMO Sound File Authors

Last Updated 240602

Almost everyone in the model railway world knows the names Heinz Däppen (Switzerland), Matthias Henning (Germany) or Paul Chetter (England). These "Sound Providers" have made good sound over more than 5 years - together they have created the 100 high-quality sound projects that can be downloaded from the ZIMO Sound Database.

A number of other sound providers have emerged in the meantime and have extended our offering.

The "offspring" of recent times, which are not as well known as those mentioned above, are presented today - located in Austria, Germany and Spain.

These projects coming soon in the ZIMO Sound Database (Georg Breuer already!) 

Quang Trung Nguyen

Quang is the current (as of 2016) ZIMO staff author and is responsible for the their offerings including the 12-567, 16-567, 12-645 and 16-645 as well as a newly released RDC file.

He is definitely raising the bar of sound file quality at ZIMO.

Oliver Zoffi

Oliver is also a current (as of 2016) ZIMO staff author and has been responsible for a very large portion of the ZIMO sound file catalog.

You can't miss his impact on ZIMO sound decoders.

Heinz Däppen (Switzerland)

Sound Design - True Sounds Made in Switzerland

Heinz is true fan of of the hobby and has made extensive trips to the United States to record North American prototypes.  

He has a particular passion for US Narrow Gauge and has produced one of the most extensive collections of narrow gauge prototype sound files including Rio Grande C16, C19, C25, K27, K28, K36, Moguls, Forneys, Americans, Shays, Climaxes, Heislers, Davenports, Mallets, and of coure the Rio Grande Goose...

I also happen to know for a fact that Heinz has recorded many North American diesel prototypes as well.

Make no mistake, he may live "across the pond" but his sounds are authentic.

Art Luescher

Art is the former North American Distributor for ZIMO.  He has also contributed to the ZIMO Sound File Database.

Matthias Henning (Germany)


Paul Chetter (England) - DigitrainSound

A.K.A. "Paullie Banger", he has had an undeniable impact on ZIMO sound.

Paul is best known for his work on British prototype.  I strongly recommend you check out his work on youtube.  It's just good.  

Ummm... make that GREAT!

Note... these are all preloaded files so you will need to contact them to arrange for use of the product.

John Gymer (England) - YouChoos Immersive Drive

John is also a British outline sound file author.  His work is first class so don't hesitate to give one of his file a go.

Note... these are all preloaded files so you will need to contact them to arrange for use of the product.

 Arnold Hübsch (Germany)


Alexander Mayer introduces himself:

"As a member of the Narrow Gauge Model Railway Group (Schmalspur-Modulbaugruppe), from 2008, I had contact with sound decoders. Thanks to the awareness of our group and the membership of the Club 760 I had (and still have) good access to many heritage railways.

In the meantime I have created more than twenty ZIMO sound projects of (mostly) narrow gauge prototypes for club members and colleagues in FREMO. My interest is not exclusively Austrian prototypes, as German, Hungarian and Serbian sounds can be found in my "portfolio". The main thing is that there is a model of the locomotive on the market.

I attach great importance to original sounds, so I collect different whistles and horns for each loco. The coupling noise, the coal shovelling, the departure whistles are mostly from original recordings of each vehicle.
I work constantly on my sound projects and will gladly incorporate suggestions from the "User". "


Carlos Núñez Deza

Carlos Núñez Deza is a Spanish musician and sound engineer. Since 2013 he cooperates with "" (Simon Osorio, digital dealer in Barcelona) and with ZIMO. His main interest is Spanish locomotives, especially the engines of ALCO and GM, which are used worldwide. The goal is to make a sound, which is very close to the real railway sounds, and to offer an innovative driving experience. But he collects information from the RENFE engineers and mechanics, as well as using heritage railways. He uses only professional recorders, and uses a high-end sound studio.


Georg Breuer introduces himself:

"I am 20 years old and a trained aircraft mechanic. As an avid railway modeller, I put into my projects the utmost self-criticism, and I am not personally satisfied until even the smallest detail is perfect. This naturally also includes the locomotive-specific features, such as the special switching behavior of E10 with fan forced circuit and the manual fan "override", or a realistic braking with separate brake button. 

And for fans of certain classes of locos, I can also customize each project for an additional cost of €10, to suit individual epochs and even individual locomotive numbers. My projects relate mainly to West German and narrow gauge models of the epochs I to VI. I try to achieve everything that is feasible, even for small series models."

Info and Load Codes via 




Christian Leopoldseder is sound engineer and worked at AKG for many years, until he became a freelancer. LeoSoundLab creates sound projects of highest quality and also offers installation of decoders and speakers into locos.

A quote from the company’s website: “It all started with the hobby model railroading and the dissatisfaction with sounds available on the market, as well as the limited range of sounds for Austrian vehicles. The first steps towards the production of the first sound project lead to the ÖBB 399.01 (today Mh.1). To get the best audio quality, I used the large diaphragm condenser microphone C414, the best equipment of the Austrian company AKG. The sound was recorded with a Zoom 4Hn. With this equipment, the first recording was impeccable. The steadily big demand for sounds of Austrian vehicles and many compliments for this and other sound projects encouraged me to further recordings. The recording of the Rh.298 / U and the offer to install it professionally into the (at that time) current Liliput model on the market marked a breakthrough and so I founded my company.” 

CLICK HERE for Additional Information

 Danske Locomotive Sound


éTT, France 

Frédéric Holbrook comes from a family of railroaders. His father was head of a consulting and certification company for rail bound matters near Paris. Following the foundation of his own small company in 2019, which specializes on repair and digitalization of model vehicles and partnering with Maketis, éTT will provide French sound projects on the ZIMO sound database. The recordings are from last summer. Due to his close relationship to French Heritage railways further projects are also possible in future.

CLICK HERE for Additional Information