Building a project which requires alignment and says to use a audio
generator, which basically looks like a function generator, which I
do have. For various sections of the alignment it states, set the audio
generator to 455KHz, etc.
Are they one in the same? I am thinking that the audio generator has
some type of "noise" which the function generator does not?
To extend what others have already said, note that
function generators intrinsically produce triangle
(and square) waves, and have to be shaped to sine
waves. The sine wave distortion is typically 1%.
An audio sine generator typically has distortion below
0.1% in the 20-20000 Hz range. Usually, either
type is limited to a MHz or so.
If you need a signal generator for conventional
audio frequencies (20-20000 Hz), you might want to
check out my freeware DaqGen signal generator
software. It can use any Windows computer and sound
card. Sine distortion is limited by the card, but can
easily be better than typical benchtop models.
Besides sine waves, it can create most any waveform
you need, including different types of random noise and
arbitrary waveforms. You can combine 4 separate streams
per output channel, and each stream can use any or all
of several modulation types, including Burst, AM, FM, PM,
or Sweep. I'd be glad to answer any questions about it.
Best regards,
Bob Masta
dqatechATdaqartaDOTcom
D A Q A R T A
Data AcQuisition And Real-Time Analysis
www.daqarta.com
Home of DaqGen, the FREEWARE signal generator