Adding Sound

Sound is a potential element in any interactive system, but incorporating it into the Arduino environment could prove difficult.


'Adding quality audio to an electronic project is surprisingly difficult. People tend to end up either using low-quality ISD chips (you might get 8Khz sampling rate for 30seconds out of these, if you're lucky!) or mucking around with trying to control a CD or MP3 player. Although it's possible to generate audio direct from a microcontroller using a PWM output, the quality is often low and its hard to fit a lot of music in an EEPROM chip. You can buy an embedded MP3 player board, but they're either expensive or difficult to use!'


I have looked into different ways of incorporating sound if it is necessary and the best way seems to be by using the 'Wave Shield' from Adafruit http://www.ladyada.net/make/waveshield/ which available here: http://proto-pic.co.uk/adafruit-wave-shield-for-arduino-kit-v1-1/