28XX Posted February 21, 2017 Share Posted February 21, 2017 https://www.coolcomponents.co.uk/en/pixy-cmucam5.html?utm_source=Newsletter+List&utm_campaign=4e26dd5a7f-EMAIL_CAMPAIGN_2017_02_15&utm_medium=email&utm_term=0_6b382bce70-4e26dd5a7f-408641701&mc_cid=4e26dd5a7f&mc_eid=2d0f2f6670 Elsewhere in this section I suggested that an object recognition system coupled to a micro controller in turn connected to multiple speakers positioned around a layout would be a far better way to implement sound than DCC plus on-board speakers. I thought the OR part of such a system would not be available for a while. I wonder if the time has come. Link to post Share on other sites More sharing options...
Robin2 Posted February 21, 2017 Share Posted February 21, 2017 That seems an expensive way to identify the location of a train. How are you thinking that it might be used? ...R Link to post Share on other sites More sharing options...
28XX Posted February 21, 2017 Author Share Posted February 21, 2017 It could identify the location, type of locomotive, whether goods or passenger and its speed. From that information, sound files for let's say, GWR 2 cylinder 4-6-0 plus bogie coaches can be selected, the exhaust frequency and wheel rhythm matched to the wheel rotation speed (from knowing it's linear speed) and output to the speakers, panning the perceived origin of the sound to match the physical position of the train. If the operator lowers the speed below a certain threshold when the train is at a given position, a station stop is detected, the exhaust sound cross faded to just valve gear clank and vacuum pump phutt, plus brake grind as it comes to a stand. All without operator input. Link to post Share on other sites More sharing options...
Robin2 Posted February 21, 2017 Share Posted February 21, 2017 When you have the computer program written to do all that do let us have a copy How about just using a few 5p LDRs under the tracks here and there? ...R Link to post Share on other sites More sharing options...
Kelly Posted February 22, 2017 Share Posted February 22, 2017 You could probably design a suitable module for the merg cbus that responds when the cbus detects a loco (modules already exist) and the computer stuff is already there via jmri or similar as event triggers. Link to post Share on other sites More sharing options...
SimonME46 Posted February 25, 2017 Share Posted February 25, 2017 Actually, JMRI has the 'Virtual Sound Decoder' already done by Mark (Twindad). Sure it could be further developed, but why reinvent the wheel? As Robin says, locating the loco should be relatively easy. Link to post Share on other sites More sharing options...
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