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Author Topic: ZIMO MS sound decoders  (Read 217 times)

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Offline Shropshire Lad

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ZIMO MS sound decoders
« on: January 31, 2019, 03:38:20 PM »
The new MS sound decoders have 'officially' been announced over on the ZIMO site.
Pretty much the same as the MX range of sound decoders but with a new central processor giving hifi sound.
Cheers Colin

Offline njee20

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Re: ZIMO MS sound decoders
« Reply #1 on: January 31, 2019, 03:50:22 PM »
Hot on the heels of the ESU Loksound V5!

Looks like they're exactly the same size as the outgoing models, bit of a shame, even an extra mm here and there would be welcome!

Offline pauliebanger

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Re: ZIMO MS sound decoders
« Reply #2 on: January 31, 2019, 06:22:06 PM »
Hot on the heels of the ESU Loksound V5!

Sort of. The MS450 was used in a Roco factory fitted model last year (announced at the time on the ZIMO website) so technically, the Loksound is hot on the heels of the MS450. LOL.

Here's the UK press release: (sorry, it was embargoed until ZIMO made a formal announcement so I couldn't share it earlier).

IMO announce the development of a new range of
sound decoders: Introducing the ‘MS’ series…

ZIMO Elektronik, has announced the advanced development of a new series of sound decoders that are set to further push the boundaries and capabilities of digital sound for model railways.

The new MS-series sound decoders, will provide a number of step-changes in the provision of sounds. They are not a simple improvement of the existing highly-regarded MX-series but have been fully redesigned with a completely new architecture for both hardware and software.

In general terms, the result will be the ability to produce better quality and much more realistic sounds through the following benefits:
•   Sound resolution doubled to 16-bit, resulting in true ‘high-fidelity’ CD music-quality output. The high bit depth means more accurate and faithful reproduction of the original recorded sounds better matching to the human ear’s frequency range.
•   Flash memory quadrupled to 128 Mbit, meaning more space is available to hold larger (better resolution) sound files and providing much longer playback times (totaling six minutes or more). Longer samples and playback allow greater sophistication leading to improved accuracy and realism to the ear.
•   Polyphonic audio output more than doubled to 16-channels, meaning the ability to play
up to 16 different sounds simultaneously, all of which can be individually adjusted
and mixed.
•   Wide range of sound sampling rates, including 22,000 Hz and 44,000 kHz, meaning better definition sound can be captured, stored and replayed. The higher sampling rates, the more sound detail is recorded and thus reducing loss inherent in sound processing.
•   New ‘state-of-the-art’ 32-bit ARM processor core with a CPU speed of 80 Mhz and a 256k internal memory available for software and future updates to access further features. The high-performance, power-efficient ‘brain’ of the sound decoder.

•   Adjustable timbres of the driving sounds (for example, steam chuff or diesel engine exhaust note) using high and low-pass filters to alter the ‘tone’ settings,
all controlled by CV configuration.

Beginning in the first half of 2019, the ‘MS technology’ range will be progressively launched in stages, covering all popular interfaces (starting with PluX) and based around the physical characteristics of the established decoder range. As can be seen, the names of the new products are based on those of the corresponding MX decoder. Everything that has established itself on these current types (number/type of function outputs and the loved ‘standard’ ZIMO features) will also be found on the new ‘MS’ products. Best of all, prices will remain similar - higher performance should not mean greater cost…

‘OO’ & Small ‘O’ scale:
MS450 (based on MX645)   MS440D with 16V energy storage (based on MX644D)   

‘N’ & Small ‘OO’ scale:
MS480 (based on MX648)   MS490N (based on MX649N)   MS580N18 (based on MX658N18)   

‘O’ and larger scales:
MS990 (based on MX699)   

The first of these new series of decoders actually entered production last year but only as a Märklin mfx decoder (with limited DCC capabilities) and restricted to use in an AC digital three-rail locomotive. It is important to note that the current MX-series decoders remain in the product range for the long-term, for reasons of familiarity and may only be superseded when new software is developed to its full extent.

The new generation decoders have been ‘future-proofed’ with significant capacity for further development. As is usual at ZIMO, invention continues long after new product launch, taking into account the wishes of users and model manufacturers. Resulting improvements will be available to all users via regular software updates. The information provided here should not be regarded as a complete list of features.

Technical data (New MS450P22 provided as an illustration)
Allowable track voltage                                              10 to 35 Volts
Continuous motor current                                          1.2 Amp
Peak motor current (20 sec)                                       2.5 Amp
Continuous current on function outputs                     0.8 Amp
Sound sample memory                                               128 Mbit (360 sec at 16 bit/22kHz)
Number of independent sound channels                   16 (polyphonic)
Sound amplifier output (sinus)                                   3 Watt
Speaker impedance (one or more)                             4 to 8 Ohm
Sound sampling rates (can be mixed)                         11, 22 (default), 44 kHz
Energy storage (stay alive) direct connection             Regulated to 16 Volts
Multi-protocol data formats                                       Mfx, DCC, MM, Analogue                   
Low noise Back-EMF motor control                            20 or 40 kHz (and adjustable 30-150 Hz)
Model motor compatibility                                         All (inc. Coreless and ‘Pancake’)



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