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Project Supernome - Where to find parts? — Parallax Forums

Project Supernome - Where to find parts?

Sean VidairSean Vidair Posts: 4
edited 2010-09-23 17:23 in Propeller 1
Hello, I am new to the forums. I have taken a course on the propeller chip at UCF where I worked through the lab manual. However I don't have experience with components beyond the lab kit. I would greatly appreciate any advice on which components would be best for this project and where to purchase them.

Project Description:
The Supernome is an interactive metronome used to improve a drummer’s rhythm. It plays audible ticks at a steady tempo and uses a microphone and beat detection algorithms to determine if the user is on beat with the ticks. If the drummer is on beat then the ticks gradually decrease in volume until they can not be heard. If off beat then the ticks increase in volume.

Parts needed:
-Microphone
-Speaker
-Headphone Output
-Digital display to show tempo
-Volume and tempo adjustment buttons/knobs
-Case

It would be great if the Speaker and Headphone Output were available in one module that could auto detect if headphones are plugged in and stop the speaker output.

Thanks!

Comments

  • Sean VidairSean Vidair Posts: 4
    edited 2010-09-10 15:36
    Would the Sound Impact Sensor listed in the parallax store be responsive enough for this project?

    http://www.parallax.com/Store/Accessories/Sound/tabid/164/CategoryID/38/List/0/SortField/0/Level/a/ProductID/614/Default.aspx
  • Bob Lawrence (VE1RLL)Bob Lawrence (VE1RLL) Posts: 1,720
    edited 2010-09-10 19:31
    Did you see this metronome project?


    http://forums.parallax.com/showthread.php?t=120831&highlight=metronome
  • Sean VidairSean Vidair Posts: 4
    edited 2010-09-12 09:09
    Bob,

    Thanks, that metronome project will be a great guideline.

    Does anyone have experience with the parallax sound impact sensor?
    is it responsive enough to accurately report several impacts in a very limited amount of time. I.E. playing eighth notes on a snare drum with a fast tempo.
  • WBA ConsultingWBA Consulting Posts: 2,935
    edited 2010-09-16 10:56
    Sean: I was the one that created that Metronome and on my plate is V2 to fix a few things I mention in the thread. Let me know if I can be of any help with hardware, I still have a lot of parts left over from my prototyping. My V2 was going to replace the POT with a nav switch, have multiple sounds (IE: 1-2-3-4-1-2-3-4), and the ability to play wav files from an SD (since the objects for that are so easy to use). I have been tied up with other priorities and haven't been able to touch V2 for two months.

    If you want to use a VM-24 case from Polycase, you can probably get a sample from them.
  • Sean VidairSean Vidair Posts: 4
    edited 2010-09-23 16:05
    WBA Consulting,

    Thanks for your reply. I appreciate how well documented your project is. Do you have any information on how to use an SD card and .wav files for sound output. I will be using a headphone output for audio, and it needs to be adjustable so I think the volume output of .wav files will be easier to control than the sound pulses.
  • WBA ConsultingWBA Consulting Posts: 2,935
    edited 2010-09-23 17:23
    Thanks for the feedback, I try to document my completed projects as detailed as possible. I don't have anything going yet for playing the WAV files as part of my next version, but there are two good examples to get you going:

    Kye's SDFAT2.0 Object
    FAT16/32 Full File System Driver
    Apart from full SD card functionality, it has built in commands to play wav files from the SD card making it really easy to add to any project.
    Thread for SDFAT2.0 object


    Nick at Gadget Gangster made a talking clock that uses SD and WAV files:
    Instructables page for the talking clock

    My plan is to build the talking clock, get it working, then tweak it for my needs for the metronome.
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