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Hi, DRS Crewe On A Mission this issue is not unique to the class 68 or even to Dapol models, it's an issue that has been about since I started with DCC sound 10 years ago.
I'll write a little background on the issue:
A sound decoder emulates the sounds that a loco makes when operating. Some of these sounds result in a delay before moving or stopping for instance brake applications or release. Additionally a sound decoder has acceleration and deceleration delays built in to allow the correct operating sounds a reasonable time to complete, often there is a compromise between realistic operation and the near 'instant' (in railway terms at least) response of a non-sound decoder or DC operation. This is due to the fact that we are [mostly] not fortunate enough to have a scale mile or two to accelerate and decelerate in!
This can be mitigated in two ways, the sound decoder can have its inbuilt delays reduced or removed by changing its configuration (CVs), or, alternately the non-sound decoder can have delays introduced (again by CVs) this would be my personal choice. A degree of trial and error in setting the decoder up is inevitable, since not only acceleration/ deceleration needs to be accounted for, but also other items such as brake release. It would be great if manufacturers would add additional CVs to act as delay timers for this! However, it is possible to setup your non-sound decoder such as it operates fairly closely the performance of your sound fitted loco, other fine tuning can be accomplished by tweaking the sound decoder as well.
In short, the non-sound decoder factory fitted is not planned to be setup in this way as we do not know if it will be MU'd with our sound fitted locos or others (since each will have differing delays). I will take under advisement looking into establishing CVs suitable, but must say it is workload dependent, so if anyone else would like to volunteer, please feel free to publish
I'll write a little background on the issue:
A sound decoder emulates the sounds that a loco makes when operating. Some of these sounds result in a delay before moving or stopping for instance brake applications or release. Additionally a sound decoder has acceleration and deceleration delays built in to allow the correct operating sounds a reasonable time to complete, often there is a compromise between realistic operation and the near 'instant' (in railway terms at least) response of a non-sound decoder or DC operation. This is due to the fact that we are [mostly] not fortunate enough to have a scale mile or two to accelerate and decelerate in!
This can be mitigated in two ways, the sound decoder can have its inbuilt delays reduced or removed by changing its configuration (CVs), or, alternately the non-sound decoder can have delays introduced (again by CVs) this would be my personal choice. A degree of trial and error in setting the decoder up is inevitable, since not only acceleration/ deceleration needs to be accounted for, but also other items such as brake release. It would be great if manufacturers would add additional CVs to act as delay timers for this! However, it is possible to setup your non-sound decoder such as it operates fairly closely the performance of your sound fitted loco, other fine tuning can be accomplished by tweaking the sound decoder as well.
In short, the non-sound decoder factory fitted is not planned to be setup in this way as we do not know if it will be MU'd with our sound fitted locos or others (since each will have differing delays). I will take under advisement looking into establishing CVs suitable, but must say it is workload dependent, so if anyone else would like to volunteer, please feel free to publish
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