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???
12/28/04 13:53
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#83976 - Try higher pitches
Responding to: ???'s previous message
I would go at least 3 or 4 octaves higher, it means multiplying your frequencies table by 8 or 16. 30-50Hz is pretty deep bass region, not very well "played" by common speakers.
For the first attempt, just try to set up a timer and produce any sound. Then you can play with the pitch and try to change it according to the pressed key.

If you finish this, as an advanced project, you can try extending the keyboard to more keys (16 is barely more than one octave; my son's $10 toy piano has 2 and a half), try effects such as tremolo and pitch bending, try polyphony (more tones at a time); very advanced use PWM for ADSR envelope generation, do noise/drums/percussions, MIDI stream/file decoding and playing... :-)

Jan Waclawek



List of 23 messages in thread
TopicAuthorDate
How to make a piano            01/01/70 00:00      
   Happy to help but...            01/01/70 00:00      
   Piano, violin, trumpet ...            01/01/70 00:00      
      Not a Piano            01/01/70 00:00      
         And not a Violin            01/01/70 00:00      
   re:            01/01/70 00:00      
      frequencies            01/01/70 00:00      
         you could also            01/01/70 00:00      
         getting 41.2 Hz out using T2 AutoReload            01/01/70 00:00      
            select proper xtal            01/01/70 00:00      
      Try higher pitches            01/01/70 00:00      
   well..            01/01/70 00:00      
      8 octaves with 16 keys???            01/01/70 00:00      
      What?            01/01/70 00:00      
   re:            01/01/70 00:00      
      Enough power?            01/01/70 00:00      
         to Joseph            01/01/70 00:00      
   Software reformated. No changes.            01/01/70 00:00      
      How to post code            01/01/70 00:00      
      just the obvious errors            01/01/70 00:00      
   iguana labs sound tutorial            01/01/70 00:00      
   debugging            01/01/70 00:00      
   Be more descriptive!!            01/01/70 00:00      

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