Ford(ish) Railmotor now with MP3 sound

Post by **ge_rik** » Fri Nov 06, 2015 7:18 pm

Just finished installing the guts from an MP3 player into my Ford-inspired railmotor.

Changing tracks on the SD card is triggered by the direction switch on my Deltang Tx22 transmitter. In reality there is a one second pause between each track but I've edited that out on the video. I am exploring ways to overcome that, though (next stage).

Apologies for the quality of the video. It was a bit of a rush-job in between showers and before having to go out. Also the roof of the bus is held on with BluTak which is a bit too obvious - but I want to be able to get back inside to make a few more modifications.

Will blog how I did it shortly.

Rik

MDLR · Post by **MDLR** » Fri Nov 06, 2015 7:28 pm

Did I hear a"crunched" gear change as it accelerated?

sstjc · Post by **sstjc** » Fri Nov 06, 2015 7:54 pm

Now that I love. Sounds really good. Did you record the sound ?
Barry

Post by **ge_rik** » Fri Nov 06, 2015 9:01 pm

A short video showing the anatomy of the system

Post by **ge_rik** » Fri Nov 06, 2015 9:02 pm

MDLR:114154 wrote:Did I hear a"crunched" gear change as it accelerated?

Yep - edited that into the sound file using Audacity. Will blog how I did it.

Rik

Post by **ge_rik** » Fri Nov 06, 2015 9:03 pm

sstjc:114156 wrote:Now that I love. Sounds really good. Did you record the sound ?
Barry

A combination of downloaded, edited and bought sound files

Rik

Post by **ge_rik** » Fri Nov 06, 2015 9:52 pm

Just posted an account of the build process on my blog
http://riksrailway.blogspot.com/2015/11 ... sytem.html

and an outline of how I created the sound files
http://riksrailway.blogspot.com/2015/11 ... sound.html

for those who might be interested

Rik

daveyrd11 · Post by **daveyrd11** » Fri Nov 06, 2015 10:23 pm

Ok, firstly I'm very impressed, that is an amazing solution for the coat.
Regarding the pause, have you tried using wav files instead of mp3. As wav needs no decompression the file change may be quicker.

Have you investigated something like this....
http://www.ebay.com/itm/U-disk-audio-pl ... 0629013078

They are super cheap, and (i have read...!) Can be configured that each pin triggers a different track. I did consider fitting two into a model. One for background engine sound and one for horns, gear change etc.

Post by **ge_rik** » Fri Nov 06, 2015 10:40 pm

daveyrd11:114162 wrote:Ok, firstly I'm very impressed, that is an amazing solution for the coat.
Regarding the pause, have you tried using wav files instead of mp3. As wav needs no decompression the file change may be quicker.

Have you investigated something like this....
http://www.ebay.com/itm/U-disk-audio-pl ... 0629013078

They are super cheap, and (i have read...!) Can be configured that each pin triggers a different track. I did consider fitting two into a model. One for background engine sound and one for horns, gear change etc.

Thanks for that - looks interesting. Might well look into that for my next investigation into sound.

Not sure if the MP3 player will play wav files - I assume it will only play MP3 files, but must admit I've not put it to the test.

Rik

Annie · Post by **Annie** » Sat Dec 19, 2015 7:26 am

Wow! I love the railcar and the sound effects add in a whole new dimension. This is something I'm going to have to investigate further.

sstjc · Post by **sstjc** » Sat Dec 19, 2015 11:59 am

But Annie you have a prototype on your door step... although I appreciate its a big doorstep !

http://www.pleasantpointrail.org.nz/Mod ... rd-Railcar

Barry

Annie · Post by **Annie** » Sat Dec 19, 2015 12:33 pm

Yes that's right Barry

I'm hoping to find out some more details about them.

https://www.youtube.com/watch?v=kykK8ABRs8k

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Ford(ish) Railmotor now with MP3 sound

Ford(ish) Railmotor now with MP3 sound

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