Direct Digital Synthesis (DDS) - Short Circuits
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Uploader Comments (jeriellsworth)
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All Comments (33)
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@jeriellsworth hey how u doing?.. Im trying to make a music player with a eeprom, i have to record "music" in my eprom an the play it with a counter... im stuck and o dont know what to do.. can u help me please....
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not sure but this looks like wavetable not DDS - real DDS use Phase Accumulator or I'm wrong?
Any Analog Devices DDS IC is good example for this.
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Beautifully simple!
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man, I wish I could get deals on cabinets and stuff like you do. The only surplus store near where I live is about an hour away.
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Inspirational!
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7m56s umm thats a triangle wave :p xD
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there's synthesizer material here. i'd love to see some more DDS, it's very handy stuff in terms of chemistry, but particularly physics.
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Great video, would love to see more on DDS and other sound synthesis experiments.
herotube 1 year ago
@herotube I've been wanting to do some more projects with sound.
jeriellsworth 1 year ago
Very cool project! What software are you using to look at the audio waterfall?
tdicola 1 year ago
@tdicola It's a free program called Spectrum Lab. It's used for ham radio too.
jeriellsworth 1 year ago
i dont completly understand this.
so you have previously progammed the samples in the flash (how)? and the 4060 randomly addresses them?
CE down, so every time Flash gets an address it outputs it's data bus to r2r network which acts as a DAC? (turns binary numbers to analog voltage
lartti83 1 year ago
@lartti83 The counter always counts up. The addresses are feed into the lower bits of the address. Store waveform values sequentially in the EPROM.
The counter will count up until it overflows and then will start at zero again. I also added a reset signal that is driven from data bit 7 of the eprom, so shorter sequence of waveforms can be stored.
jeriellsworth 1 year ago