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Sample rate conversions [message #27834] Fri, 15 August 2008 13:33 Go to next message
karle is currently offline  karle
Messages: 1
Registered: May 2009
Esquire
I will be doing some tests, to find out if people can really hear the
difference if a song is played at different sampling rates.

Does anyone knows about a computer / Software / Hardware bundle that would
enable playing songs and changing the master clock on the fly? I would need
the DA converter to switch its clock automatically, according to the signal
it receives at the inputs and the finest equipment if possible.

Also, if you already conducted such an experiment, I'd like to know:

should I:

1-Start with a 192khz source, downsample it and play it back at the
downsampled rates on the D to A converter
2-Start with a 192khz source, downsample it and play it back at the highest
rate on the D to A converter
3-Record the same performance at different sample rates and then play it
back at its native sample rate


Karle

Re: Sample rate conversions [message #27835 is a reply to message #27834] Mon, 18 August 2008 12:44 Go to previous message
Wayne Parham is currently offline  Wayne Parham
Messages: 18670
Registered: January 2001
Illuminati (33rd Degree)

Visit with Keith Larson, the designer of the Speaker Tester. You can reach him at the "Contact Us" page from the link below. Keith is very knowledgable about modern DAC/ADC and audio applications that use them. Things have changed a lot since the days when DACs were resistor ladders and ADCs were the same thing with successive approximation and comparitors. Because of this, I would suggest you examine various chipsets and codecs in addition to resolution and sampling rate, as the components and codecs chosen will have as much or more impact on sound quality as the resolution and sampling rate does.


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