• Date JoinedJan 14, 2012
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T0BY6 months ago
Thanks Amanda, will do.
T0BY7 months ago
Hi Amanda,

Do you think I have put them in the right place? I'm still completely stuck!

Many thanks for your help on this,

amandaghassaei (author)  T0BY7 months ago
I'm using Processing 2 on a mac and it's at:
Hi Amanda, thanks for that, I've got it working now! I notice you have a flat bottom to your groove but there is no mention of this that I can see in your text. I am wondering if removing this might help playback on a mono record player. What do you think? I have tried adjusting the parameters on the code to remove the flat bottom but none of them seem to remove it. Do you know how I may be able to do this?

Thanks for your help with this,

amandaghassaei (author)  T0BY6 months ago
you could try, but I found that the resin will seep into the groove too much and add noise. I did the flat bottom so I could make the grooves a little wider. If you have more questions you should post on the instructable page, that way people will find them when they're looking at the project!
T0BY7 months ago
Hello Amanda,

I wonder if you are able to help me, I am a bit stuck! When I run the Processing Sketch I keep getting the error 'The function close() does not exist'. I have checked some forums and have made sure all the [ and ] brackets are in pairs and that the file name doesn't include the word 'close' but it's still not working. I have had to update to Processing 2 because of the computer I am using but I am using the same modelbuilder library as you did.

Many thanks,

amandaghassaei (author)  T0BY7 months ago
sounds like there's something wrong with your installation of the ModelBuilder library, what folder did you put it in?
I've found that the installation of the folder is different in Processing 2 and I have found conflicting advice on where the library needs be installed. I created the folder 'libraries' in the Processing 2 folder and have put it in there. I have also put it duplicate folders called 'libraries' in the project folders themselves. I am not sure if this duplication in itself will cause a problem.
mustafa1237 months ago

I saw your arduino timer interrupt and found it intriguing. May I ask how do I record a 1Khz sine signal with arduino into a text file? I was wondering if you share an example code with me as so far all the experiments I been doing for it has failed in accuracy or distortion.

Thank you so much for your time
amandaghassaei (author)  mustafa1237 months ago
you mean how do you create a txt file with a 1khz sine signal so you can load it onto an arduino?
Hi Amanda,

i mean I want to use ADC to read a 1khz sine signal and write the data back to serial to be stored in a text file. I already know how to write the data back to serial.
The only problem is I do not know how to accurately use arduino to read a 1khz sine signal. I heard that timer interrupt ADC is useful, but i do not know how to implement it after going through a few tutorials. Is it possible for me to talk to you for a while when you are online to have a clearer picture or get some help from you please?
amandaghassaei (author)  mustafa1237 months ago
just use my arduino audio input instructable:
send out the variable ADCH via serial.
May I know how often you come online to check the posts?I can be online everyday just to wait for your reply.
mustafa1237 months ago
Hi Amanda,

May I also check if the sampling rate of arduino mega 2560 is 9600Hz?
Thank you so much for your time
amandaghassaei (author)  mustafa1237 months ago
both the mega and uno run at 16Mhz

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