Re: Question about oscilloscopes for audio
- From: "Harry Dellamano" <harryd@xxxxxxxxxxxxx>
- Date: Tue, 14 Nov 2006 18:29:12 GMT
"PPP" <pispaspos@xxxxxxxxx> wrote in message
news:1163517806.436069.47920@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Hello,This is what works for me. A USB audio interface unit for your PC, a good
I was reading the oscilloscope tutorial here:
http://www.picotech.com/applications/oscilloscope_tutorial.html
The section regarding vertical resolution specified the following
device:
http://www.picotech.com/audio_spectrum_analyzer.html
Also, from my searches in this group using "audio oscilloscope", I
found the following link:
http://www.syscompdesign.com/oscilloscope.htm
According to the tutorial, it states that for audio signals I should go
for a scope with a higher vertical resolution (16 bits) so I can have a
higher accuracy. However, most of the scopes I've seen including ones
in our university lab are 8 bits. For my application, I'm trying to
duplicate a headphone amplifier, does this mean that the Syscomp Design
(and university lab) scopes would not be suitable for my project?
Thanks!
one is the M-Audio Audiophile -USB found here for $150.
http://www.fullcompass.com/product/255063.html
This will give you 2 input channels and 2 output channels of 24 bit- 96KHz
performance, fully isolated.
Then get a software package to interpret and display the data on your PC in
scope or spectrum formats. Here is a good one for $100.
http://www.trueaudio.com/index.htm
This setup will output sine waves with harmonics down >90db and has an
input noise floor of -110db at 1.0KHz and will do a full frequency response
with one keystroke in <1.0 second. Perfect for headphone design. I am
designing transcutaneous power and data transfer for implanted hearing aids
using this setup.
Sorry for the plug but I am looking for more work in the medical arena,
power electronics gets boring after awhile.
Cheers,
Harry
.
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