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seanshintaro		#1 Posted : 25 November 2018 18:44:26(UTC) Retweet
Joined: 27/04/2018(UTC) Posts: 51 Location: Hong Kong Island		hello all, Whenever I on motor, horn and rail joint sound together (3 sound functions in the same time when running), my rail bus is having clipping noise from speakers. I tied to change the speakers to new, but result was same. I also suspect that it can be caused by the decoder, because both of 39952 and 39979 are having the same issue. Or hoping to remove this noise if possible by Ecos. I tried to seek any solutions in this forum, but I could not hit, and apologize if I posted similar topic again which has been discussed n solved before. Appreciate if anyone can advise me how to remove this clipping noise... regards, sean Edited by user 01 December 2018 09:46:05(UTC)  | Reason: Not specified
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JohnjeanB		#2 Posted : 25 November 2018 23:39:05(UTC) Retweet
Joined: 04/02/2011(UTC) Posts: 3,114 Location: Paris, France		Hi Sean My 39952 does not have this problem but I have the motor sound on all the time and the horn on occasions. I will do the test with the 3 sounds simultaneously and come back to you. I don't have the 39979 so I cannot say. Cheers Jean
		My layout videos latest vid marshalling yard My Layout
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seanshintaro		#3 Posted : 26 November 2018 08:09:34(UTC) Retweet
Joined: 27/04/2018(UTC) Posts: 51 Location: Hong Kong Island		Hi Jean thank you for your message and testing :) It usually happens to me at 12 speed steps above (60 if using 126steps) when rail joint sound starts to appear... regards Sean
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river6109		#4 Posted : 26 November 2018 11:12:26(UTC) Retweet
Joined: 22/01/2009(UTC) Posts: 14,715 Location: On 1965 Märklin Boulevard just around from Roco Square		Originally Posted by: seanshintaro Hi Jean thank you for your message and testing :) It usually happens to me at 12 speed steps above (60 if using 126steps) when rail joint sound starts to appear... regards Sean Sean, have you got a lokprogrammer ? John
		https://www.youtube.com/river6109 https://www.youtube.com/6109river 5 years in Destruction mode 50 years in Repairing mode
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seanshintaro		#5 Posted : 26 November 2018 11:25:49(UTC) Retweet
Joined: 27/04/2018(UTC) Posts: 51 Location: Hong Kong Island		Hello John, Yes I do regards Sean
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jvuye		#6 Posted : 26 November 2018 11:36:46(UTC) Retweet
Joined: 01/03/2008(UTC) Posts: 2,881 Location: South Western France		Originally Posted by: seanshintaro hello all, Whenever I on motor, horn and rail joint sound together (3 sound functions in the same time when running), my rail bus is having clipping noise from speakers. I tied to change the speakers to new, but result was same. I also suspect that it can be caused by the decoder, because both of 39952 and 39979 are having the same issue. Or hoping to remove this noise if possible by Ecos. I tried to seek any solutions in this forum, but I could not hit, and apologize if I posted similar topic again which has been discussed n solved before. Appreciate if anyone can advise me how to remove this clipping noise... regards, sean In my humble opinion, this is probably a normal occurence. Early sound decoders had only one sound "channel" in other words they couldn't play more than one sound at the time . I remember the first sound equipped steam locos, stopping their chuffing when you were blowing the whistle! More recent decoders have several channels and can play different sound bites simultaneously . I guess the railbus in question has a two channel output, and you have made your own diagnostic : it only happens when the third sound bite (rail joiners) is being played. If the clipping dissapears when you switch either the horn or the joiners' noise, you know you've reached the limits of the system Cheers Jacques
		Jacques Vuye aka Dr.Eisenbahn Once a vandal, learned to be better and had great success!
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H0		#7 Posted : 26 November 2018 12:04:37(UTC) Retweet
Joined: 16/02/2004(UTC) Posts: 15,263 Location: DE-NW		I'm not sure I understand what "clipping" means. Märklin sound decoders come with a default volume setting that is way to loud for my taste and that often leads to distorted sound from the speaker. Quite often my first step is reducing the volume to 80% or 60% or so. It's not unusual to hear vibrations from the speaker/clip/interior at full volume. Reducing the volume often helps with that, too. Originally Posted by: jvuye More recent decoders have several channels and can play different sound bites simultaneously. We are talking about a 2016 new item and an Insider Model. I think 2016 qualifies as "recent". Maybe the decoder is trying to play too many sounds at the same time. The decoder firmware should be able to handle that gracefully. Originally Posted by: river6109 have you got a lokprogrammer? An ESU LokProgrammer won't do much good with that type of decoder.
		Regards Tom --- "In all of the gauges, we particularly emphasize a high level of quality, the best possible fidelity to the prototype, and absolute precision. You will see that in all of our products." (from Märklin New Items Brochure 2015, page 1) ROFLBTCUTS
2 users liked this useful post by H0		river6109, TEEWolf
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seanshintaro		#8 Posted : 26 November 2018 12:36:22(UTC) Retweet
Joined: 27/04/2018(UTC) Posts: 51 Location: Hong Kong Island		Hello Jacques, thank you for your sharing interesting story about your early decoder experience. If the rail bus decoder really has a 2 channel capacity to play in the same time, then my question is almost explained. But my case is that it seems like having a bumblebee inside my rail bus when running (eg sound on) + rail joint sound + horn or passenger chatting sound are in function. In addition, when I on the rail joint sound on, the speaker begins to have clipping noise right away no matter what, but I wonder if one of the sounds is simply cut off when played more than 2 functions instead of having buzzing noise?? If only 2 sounds can be played, it may be caused due to having Engine sound + random sound function, and the maximum slot (2 spaces) had been occupied already no more room for the rail joint sound and that’s why the speaker begins having clipping noise? Hello Tom, thank you for your message. What I meant “clipping noise” is like what I have said above, just like having a bee flying around inside my rail bus…. About volume setting, I set volume to 220 from factory setting (255), and also I tried to change the speakers to new, but the symptom remains unchanged, so I thought it is not due to speaker problem but something different, and yet scratching my head… regards sean
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jvuye		#9 Posted : 26 November 2018 13:29:38(UTC) Retweet
Joined: 01/03/2008(UTC) Posts: 2,881 Location: South Western France		Originally Posted by: seanshintaro Hello Jacques, thank you for your sharing interesting story about your early decoder experience. If the rail bus decoder really has a 2 channel capacity to play in the same time, then my question is almost explained. But my case is that it seems like having a bumblebee inside my rail bus when running (eg sound on) + rail joint sound + horn or passenger chatting sound are in function. In addition, when I on the rail joint sound on, the speaker begins to have clipping noise right away no matter what, but I wonder if one of the sounds is simply cut off when played more than 2 functions instead of having buzzing noise?? If only 2 sounds can be played, it may be caused due to having Engine sound + random sound function, and the maximum slot (2 spaces) had been occupied already no more room for the rail joint sound and that’s why the speaker begins having clipping noise? Hello Tom, thank you for your message. What I meant “clipping noise” is like what I have said above, just like having a bee flying around inside my rail bus…. About volume setting, I set volume to 220 from factory setting (255), and also I tried to change the speakers to new, but the symptom remains unchanged, so I thought it is not due to speaker problem but something different, and yet scratching my head… regards sean Maybe, to better explain, you could have a short video uploaded? And have you asked your dealer to take a look at it?
		Jacques Vuye aka Dr.Eisenbahn Once a vandal, learned to be better and had great success!
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seanshintaro		#10 Posted : 26 November 2018 16:04:39(UTC) Retweet
Joined: 27/04/2018(UTC) Posts: 51 Location: Hong Kong Island		E2B74F40-6E66-496D-AC4B-D09981BB0E9E.MOV (10,751kb) downloaded 53 time(s).
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seanshintaro		#11 Posted : 26 November 2018 16:06:24(UTC) Retweet
Joined: 27/04/2018(UTC) Posts: 51 Location: Hong Kong Island		1A218BE4-A4F1-477E-B896-E8313AFC650B.MOV (10,577kb) downloaded 41 time(s). Hope these 2 files are enough to describe what I meant "clipping noise". You can hear that buzzing noise? just like a record player needle is picking up dusts. meanwhile, I of course told my local dealer about this happening, but the shop told me to send it back to Marklin straight away without giving me any advice Knowing it takes more or less 3-6months to get my rail bus repaired, I wanted to try to find ways to rectify....
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seanshintaro		#12 Posted : 26 November 2018 16:41:17(UTC) Retweet
Joined: 27/04/2018(UTC) Posts: 51 Location: Hong Kong Island		3FD831F7-96C8-4E3C-A6BE-8132B497B6B7.MOV (6,556kb) downloaded 27 time(s). Further, I sometimes hear this noise when all sound function were off and even loco is standing still on the rail track. Funny that both of my rail buses have this issue... Or, this is normal for rail bus decoder(s)??
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David Dewar		#13 Posted : 26 November 2018 23:25:23(UTC) Retweet
Joined: 01/02/2004(UTC) Posts: 7,340 Location: Scotland		Difficult to tell from the video. I have a rail bus and it makes what I understand to be the Rail Bus Rattle. What I don't understand is that it makes this noise without any sound function turned on. With all sounds turned off the loco should run silently.
		Take care I like Marklin and will defend the worlds greatest model rail manufacturer.
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seanshintaro		#14 Posted : 27 November 2018 00:47:20(UTC) Retweet
Joined: 27/04/2018(UTC) Posts: 51 Location: Hong Kong Island		It may be a bit difficult to tell from the videos but clipping noise appears especially when the engine and horn sound are on together and these sounds are cracking??? having distortion while horn is on. It is so obvious if not taped
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TEEWolf		#15 Posted : 27 November 2018 00:51:05(UTC) Retweet
Joined: 01/06/2016(UTC) Posts: 2,465		Originally Posted by: seanshintaro 3FD831F7-96C8-4E3C-A6BE-8132B497B6B7.MOV (6,556kb) downloaded 27 time(s). Further, I sometimes hear this noise when all sound function were off and even loco is standing still on the rail track. Funny that both of my rail buses have this issue... Or, this is normal for rail bus decoder(s)?? Is this only at your rail bus or is it generally at your railroad? Perhaps it has something to do with the power line hums. see here: https://en.wikipedia.org/wiki/Mains_hum
		WWW
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seanshintaro		#16 Posted : 27 November 2018 01:07:49(UTC) Retweet
Joined: 27/04/2018(UTC) Posts: 51 Location: Hong Kong Island		No locos among what I have but the rail bus. And as I previously mentioned in my post, both of the rail buses I have are like that... So... I begin to think that it can be possible having 2 malfunctioned decoder rail buses by chance and if so, i should be proud of having such coincidence just like winning Mark6...
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mike c		#17 Posted : 27 November 2018 05:49:49(UTC) Retweet
Joined: 28/11/2007(UTC) Posts: 7,892 Location: Montreal, QC		In order to be able to make any sort of reasonable recommendation, I would require the following: 1) Recordings of each sound, so I know that they should sound like 2) Recording of two sounds overlayed (eg running and track clicking, running and horn, track clicking and horn), so that I know what two sound like simultaneously 3) Recording of three sounds (at least one different sound) (eg, train clicking, horn and announcement) This way, we will be able to tell whether the sound module can support 3 separate sounds at the same time and be able to hear any changes It is possible that the decoder is allowing some noise through, but I don't see why that would happen only when three sounds were running and if so, it should occur when any three sounds are overlayed. It is possible that the sum of three noises raises the threshold of the decoder output to the point where it no longer can render a proper sound and some will come through as distortion, no matter what the output volume is set at. To test this, you would have to reduce the volume of each actual recording (not the output volume) and see if all three can then be played without distortion. Regards Mike C
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seanshintaro		#18 Posted : 27 November 2018 10:23:24(UTC) Retweet
Joined: 27/04/2018(UTC) Posts: 51 Location: Hong Kong Island		C067E89D-0398-46D9-9269-E603E3822FC6.MOV (9,716kb) downloaded 22 time(s). 1. Track horn
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seanshintaro		#19 Posted : 27 November 2018 10:25:14(UTC) Retweet
Joined: 27/04/2018(UTC) Posts: 51 Location: Hong Kong Island		4F552640-DCA0-4661-9947-9539126A96AA.MOV (13,404kb) downloaded 16 time(s). 2. Track eg
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seanshintaro		#20 Posted : 27 November 2018 10:27:25(UTC) Retweet
Joined: 27/04/2018(UTC) Posts: 51 Location: Hong Kong Island		121B2A90-6231-4B1B-91F8-F5FBE1895437.MOV (15,397kb) downloaded 18 time(s). 3. Running rail joint sound
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seanshintaro		#21 Posted : 27 November 2018 10:29:28(UTC) Retweet
Joined: 27/04/2018(UTC) Posts: 51 Location: Hong Kong Island		FBDBA0B9-5D65-4A3D-9ABF-82D613C0ACF5.MOV (11,283kb) downloaded 22 time(s). 4. running rail joint sound (higher speed)
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seanshintaro		#22 Posted : 27 November 2018 10:31:00(UTC) Retweet
Joined: 27/04/2018(UTC) Posts: 51 Location: Hong Kong Island		23A27F9E-AA5B-44D3-A4A0-7DCEE458A33A.MOV (10,175kb) downloaded 54 time(s). 5. Track eg+horn
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seanshintaro		#23 Posted : 27 November 2018 10:33:36(UTC) Retweet
Joined: 27/04/2018(UTC) Posts: 51 Location: Hong Kong Island		F635D1B1-CD2F-4E36-B987-73390DC22B5F.MOV (10,809kb) downloaded 14 time(s). 6. Running eg+horn
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seanshintaro		#24 Posted : 27 November 2018 10:35:24(UTC) Retweet
Joined: 27/04/2018(UTC) Posts: 51 Location: Hong Kong Island		F6FC57C6-937A-4646-9B75-A048FEB19AA1.MOV (12,707kb) downloaded 17 time(s). 7. Running eg+rail joint+ horn
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seanshintaro		#25 Posted : 27 November 2018 10:36:55(UTC) Retweet
Joined: 27/04/2018(UTC) Posts: 51 Location: Hong Kong Island		E125C78F-7D94-4B88-B75A-DE3DB8E71486.MOV (11,635kb) downloaded 23 time(s). 8. Running eg+rail joint
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seanshintaro		#26 Posted : 27 November 2018 10:39:22(UTC) Retweet
Joined: 27/04/2018(UTC) Posts: 51 Location: Hong Kong Island		64F178A2-5714-4773-B17E-6CCA88E7F80E.MOV (11,729kb) downloaded 17 time(s). 9. Buzzing noise after turned off But this happens not always but once in a while
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seanshintaro		#27 Posted : 27 November 2018 10:42:06(UTC) Retweet
Joined: 27/04/2018(UTC) Posts: 51 Location: Hong Kong Island		70D3ADB9-DE54-430F-9998-FFFA83E3534D.MOV (14,165kb) downloaded 18 time(s). 10. Running eg+rail joint+ horn at lower volume value @200 (factory setting is 255)
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seanshintaro		#28 Posted : 27 November 2018 10:58:48(UTC) Retweet
Joined: 27/04/2018(UTC) Posts: 51 Location: Hong Kong Island		hello all, I really thank you guys for your comments and suggestions :) I posted 10 videos so you can understand better, and in the last video, I set volume at 200 (default 255) \ to see if volume value affected distortion but just became quieter... I noticed that in the video No.3, the rail joint sound seems like having distortion noise? but I am not sure... In the video No.9, the buzzing noise, this happens in occasion not always happening and I have no idea what this is. Lastly, under my observation so far, I have lower chance to have this clipping noise/distortion if I do NOT click "Rail joint sound" button, which is, with Eg + Horn seems almost no problem, but yet I can hear slightly buzzing noise/distortion when horn sound is played. regards sean
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seanshintaro		#29 Posted : 28 November 2018 19:02:20(UTC) Retweet
Joined: 27/04/2018(UTC) Posts: 51 Location: Hong Kong Island		DB4C27E2-D2D5-4488-91FF-448F743AF601.MOV (10,059kb) downloaded 12 time(s). 11. Running slow with eg sound + horn (master volume value 230) Even without rail joint sound, horn sound is cracking while beeping.....
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seanshintaro		#30 Posted : 28 November 2018 19:06:10(UTC) Retweet
Joined: 27/04/2018(UTC) Posts: 51 Location: Hong Kong Island		FA3C3171-9195-4CCD-9153-6A69435E6190.MOV (10,645kb) downloaded 15 time(s). 12. Same condition as No.11, but master volume is reduced to 160, yet having cracking/clipping noise so I’m guessing it is not because of volume value but something different. I am usung ECoS and set voltage at 19.5v as recommended by ESU. I haven't tried with Marklin controllers because I do not have any... regards sean
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Dave Banks		#31 Posted : 29 November 2018 04:22:22(UTC) Retweet
Joined: 08/03/2006(UTC) Posts: 1,026 Location: Gold Coast, Australia.		Sean if it were mine I would "wipe" & reload the entire sound profile again as my 1st step in trying to eliminating the annoying problem.
		D.A.Banks
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seanshintaro		#32 Posted : 29 November 2018 08:33:29(UTC) Retweet
Joined: 27/04/2018(UTC) Posts: 51 Location: Hong Kong Island		hi Dave, It is really annoying having this issue, if it is really a problem. Honestly, I am not sure if the symptom I am having is normal for the rail bus or not. Maybe the decoder can't handle more than 2 sound functions or goes crazy??? What I have done so far, I deleted all M4 locos from my EcoS and I reset my rail bus as "factory setting" but result was same. ...and I had to reload 15 Marklin locos back again for nothing BTW, is it possible to reload Marklin decoder?? sean
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kiwiAlan		#33 Posted : 29 November 2018 10:56:03(UTC) Retweet
Joined: 23/07/2014(UTC) Posts: 8,102 Location: ENGLAND, Didcot		Originally Posted by: seanshintaro BTW, is it possible to reload Marklin decoder?? Not the factory fitted ones, as far as I know. Marklin tend to lock down their decoders in factory fitted locs. I would first reduce the sound volume further, down to around 120-150. I also don't know why they put a rail joint sound in there, it is going across rail joints anyway, which should make enough noise on their own.
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seanshintaro		#34 Posted : 29 November 2018 11:46:17(UTC) Retweet
Joined: 27/04/2018(UTC) Posts: 51 Location: Hong Kong Island		Originally Posted by: kiwiAlan Originally Posted by: seanshintaro BTW, is it possible to reload Marklin decoder?? Not the factory fitted ones, as far as I know. Marklin tend to lock down their decoders in factory fitted locs. I would first reduce the sound volume further, down to around 120-150. I also don't know why they put a rail joint sound in there, it is going across rail joints anyway, which should make enough noise on their own. hello kiwiAlan, I tried to reduce the volume until 120 and the sound became really quiet from a bee buzzing to mosquito for my ears, but I could tell the same noise while horn was on. So I suspect it is not the speaker problem but something else.. As far as I understand, what I can change for the M decoder are quite limited such as for the master volume and accelerate/break delay speed.. If ESU sound file were available for this single rail bus (double unit one is available tho), I would purchase and replace the factory fitted one. About the rail joint sound, honestly I rarely use this sound function but if yes, it is when I hit this button by accident or when testing. I noticed my rail bus sound problem because I was testing all of functions of my locos to maintain their conditions. Initially I thought the sound clipping noise occurs only when I on the rail joint sound, but it seems no, cos the noise also appears even with eg sound and horn only as tested yesterday. I really may need to send my rail bus back to factory sean
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David Dewar		#35 Posted : 29 November 2018 12:40:51(UTC) Retweet
Joined: 01/02/2004(UTC) Posts: 7,340 Location: Scotland		I might have asked this before but when you have no sound does the loco run completely silent. If the loco is under warranty could you get Marklin to exchange the decoder.
		Take care I like Marklin and will defend the worlds greatest model rail manufacturer.
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seanshintaro		#36 Posted : 29 November 2018 12:49:41(UTC) Retweet
Joined: 27/04/2018(UTC) Posts: 51 Location: Hong Kong Island		Hello. Yes, the loco drives totally quiet if no sound. And yes, it’s yet under warranty but just hoping not to send my loco to the factory but solve this issue as it surely takes 3-6months or even longer to get it back.... Sean
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JohnjeanB		#37 Posted : 30 November 2018 16:46:25(UTC) Retweet
Joined: 04/02/2011(UTC) Posts: 3,114 Location: Paris, France		Originally Posted by: seanshintaro E2B74F40-6E66-496D-AC4B-D09981BB0E9E.MOV (10,751kb) downloaded 53 time(s). Hi Sean Not surprizingly this is exactly what I have on my 39952 with multiple sound. Because I have 32 Sound locomotives in action, to avoid Sound saturation and unpleasantness: - I keep the sound level to a rather low level (so that I don't hear far away locos) - I switch off the sound automatically (thanks Rocrail ) when any loco is at the depot - I don't use the klicketyklak sound - I use the horn only where needed (levelcrossing, etc) - I have a Rocrail command string to switchoff all sounds when needed (Thanks Rocrail) Similarly, on a different subject the Smoke generators are automatically swiched off when in the loco shed and only turned ON on other Locos when I push the smoke button on Rocrail (only when the generators are filled with liquid). Cheers Jean
		My layout videos latest vid marshalling yard My Layout
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seanshintaro		#38 Posted : 30 November 2018 19:20:31(UTC) Retweet
Joined: 27/04/2018(UTC) Posts: 51 Location: Hong Kong Island		Originally Posted by: JohnjeanB Originally Posted by: seanshintaro E2B74F40-6E66-496D-AC4B-D09981BB0E9E.MOV (10,751kb) downloaded 53 time(s). Hi Sean Not surprizingly this is exactly what I have on my 39952 with multiple sound. Because I have 32 Sound locomotives in action, to avoid Sound saturation and unpleasantness: - I keep the sound level to a rather low level (so that I don't hear far away locos) - I switch off the sound automatically (thanks Rocrail ) when any loco is at the depot - I don't use the klicketyklak sound - I use the horn only where needed (levelcrossing, etc) - I have a Rocrail command string to switchoff all sounds when needed (Thanks Rocrail) Similarly, on a different subject the Smoke generators are automatically swiched off when in the loco shed and only turned ON on other Locos when I push the smoke button on Rocrail (only when the generators are filled with liquid). Cheers Jean Hello Jean, Thank you very much for your checking, and I understand that yours also having same as mine. So this clipping sound seems like not a defect but the standard? among the 39952 and/or the 39979. I happened to find this when I was doing periodical check-up for all of my locos' decoder functions, and the rail buses were the only ones having this symptom.. I'll change my mind that this is not as a defect but is a "feature" or a "taste" of this decoder I usually adjust every sound volume if ESU or Zimo, because mostly set far too loud for me, too. Too bad that Marklin doesn't allow this but master volume only... again, thank you for yours warm regards sean
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JohnjeanB		#39 Posted : 30 November 2018 23:16:21(UTC) Retweet
Joined: 04/02/2011(UTC) Posts: 3,114 Location: Paris, France		Originally Posted by: seanshintaro I usually adjust every sound volume if ESU or Zimo, because mostly set far too loud for me, too. Too bad that Marklin doesn't allow this but master volume only... Hi Sean Recent Märklin decoders allow to adjust the sound strength on a per sound-function basis I think and It may very well be the case with the 39952 Railcar. My control unit is a CS2 60215. The latest s/w has changed the way to adjust it (go to the Loco parameter screen, load CVs, touch any function key, then select sound with a wrench and you may adjust each sound function's strength (similarly you may configure any light function to dim it or set it to special behaviour (e.g.: Telex, Smoke, Mars light, Blink, Fire, etc) and the frequency. You have a huge number of parameters you may adjust on these recent locos except alas you cannot reprogram the sound (locked for commercial reasons). If you don't have a CS2 or CS3 you may also change those values by CVs sometimes by changing the protocol to DCC (even temporarily is OK) Cheers Jean
		My layout videos latest vid marshalling yard My Layout
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seanshintaro		#40 Posted : 01 December 2018 10:01:01(UTC) Retweet
Joined: 27/04/2018(UTC) Posts: 51 Location: Hong Kong Island		Originally Posted by: JohnjeanB Originally Posted by: seanshintaro I usually adjust every sound volume if ESU or Zimo, because mostly set far too loud for me, too. Too bad that Marklin doesn't allow this but master volume only... Hi Sean Recent Märklin decoders allow to adjust the sound strength on a per sound-function basis I think and It may very well be the case with the 39952 Railcar. My control unit is a CS2 60215. The latest s/w has changed the way to adjust it (go to the Loco parameter screen, load CVs, touch any function key, then select sound with a wrench and you may adjust each sound function's strength (similarly you may configure any light function to dim it or set it to special behaviour (e.g.: Telex, Smoke, Mars light, Blink, Fire, etc) and the frequency. You have a huge number of parameters you may adjust on these recent locos except alas you cannot reprogram the sound (locked for commercial reasons). If you don't have a CS2 or CS3 you may also change those values by CVs sometimes by changing the protocol to DCC (even temporarily is OK) Cheers Jean hello Jean, I heard that CS2 is a lot more like ESU EcoS and more flexible than CS3. I used to have CS3, but somehow CS3 didn't like my ESU locos (I have 25 locos from ESU) so I dumped CS3 but using EcoS now. I also have Lokprogrammer, and hope I can figure it out how to adjust M decoder best regards Sean
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QQQ1970		#41 Posted : 02 September 2019 18:51:36(UTC) Retweet
Joined: 06/02/2018(UTC) Posts: 378 Location: Ontario, Toronto		I have that buzzing noise too if I play a couple of sound files during operation. The only way to remove the buzzing noise is interrupt the power supply. Any suggestion? Sebastian
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seanshintaro		#42 Posted : 03 September 2019 02:39:11(UTC) Retweet
Joined: 27/04/2018(UTC) Posts: 51 Location: Hong Kong Island		Originally Posted by: QQQ1970 I have that buzzing noise too if I play a couple of sound files during operation. The only way to remove the buzzing noise is interrupt the power supply. Any suggestion? Sebastian Hello Sebastian, So far, been surrendered and no clue how to fix this issue and the "Buzzing noise" still exists... Apologize I do not have any advice/suggestions on this issue.... I even changed 2 speakers to better ones before (as I doubted the noise could be caused by vibration or lacking power output) but the result was same. Guessing that the cause is not the speakers but the decoder/program, which M is the only one who can rectify this. I wonder if this buzzing noise appears only under certain situations like we have? or, there should be more complaints from the rail bus owners, and M should've done something for this... sean
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