🚀 go-pugleaf

edgarm@rs6109.ecs.rpi.edu (Marc Edgar) writes:


> Greetings,
> 
> I am in need of a digital signal anylizer but can not 
> affort the $20k that HP wants.  
> 
> I am getting a 386-33Mhz soon and was wondering if is anyone
> out there that sells an analog to digital board and software 
> to do signal processing in the audio range for say $500?
> 
> Is there any shareware for this?  
> 
> I don't need to do anything real fancy, just things like
>   Power Spectrum
>   Frequency and Phase Response
>   FFT
>   Total Harmonic Distortion.
> 
> Thanks in advance.
> 
> Marc Edgar
> edgarm@rpi.edu

On a seminar in Indiana I visited in august 91 on Sound System
Measurements 3 interesting programs were shoved:

Hypersignal from Dallas, Texas had a double FFT up and running
including all the features you name plus crosscorrelation, waterfall etc.
If you added an quality DSP board, you were
able to read the testsignal into this board and replay it! It was possible to
edit the signal and hear selected parts of it!!. As I am measuring music and
acoustics hearing the signal is very important in judging the signal.
Price in the tag of $5000, but very interesting.

TEF from Elkhart, Indiana were showing the TEF-20 for PC and Mac.
This is a single FFT set up for Time Delay Spectromety, which gives
a signal to noise ratio allmost 10 dB better than most other methods.
Produces frequency, phase, impuls response, etc's. Price around $3500


Last brand was Ariel, a single FFT, but I do not remenber more details 
right here.

 Yours Nils Bundgaard
       EAR Electro Acoustic Research, Denmark.
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   Nils Bundgaard       Naeringen 20         8240 Risskov              Denmark
     
      email nilsb@daimi.aau.dk    tlf prv 8621 3029  tlf Wrk 45 8619 5722