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Software News   Software News : New software releases by OnyxSoft
   posted by Deniil715 on 16-Jun-2009 20:21:59 (1709 reads)
OnyxSoft is releasing a new software title!

Speaker Range Tester v1.0 - (OS4)
This program is designed for testing the frequency response of a speaker or any other audio equipment such as filters, amplifiers, etc.

Read More...


It works by sending out (playing) sinus waves at one frequency at a time and then meassure the input magnitude from for example a microphone for each frequency. When it has tested a specified range it will stop and draw a graph or diagram with deciBell versus frequency to let you see and analyse the frequency response curve.

See this link for a screenshot.

If you know a bug or have a suggestion, please don't hesitate to drop us an e-mail
    

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Cass 
Re: New software releases by OnyxSoft
Posted on 17-Jun-2009 20:22:12
#1 ]
Regular Member
Joined: 18-Nov-2003
Posts: 478
From: Athens, Greece

I have an old parallel port sampler on my A4000... Could this be of any use (I mean, is there any support for old h/w on AOS4? I had some problems even using the joysticks !)?


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Deniil715 
Re: New software releases by OnyxSoft
Posted on 18-Jun-2009 0:25:35
#2 ]
Elite Member
Joined: 14-May-2003
Posts: 4179
From: Sweden

@Cass

If you have a classic Amiga (with a classic parallel port ) and an AHI driver that supports your sampler, then sure!
Edit: I mean if you have OS4 for you classic A4k :)

Plugging it to the parallel port of an AmigaOne and hope for anything will probably not be very satisfactory I'm afraid.

Last edited by Deniil715 on 18-Jun-2009 at 12:28 AM.


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Krashan 
Re: New software releases by OnyxSoft
Posted on 18-Jun-2009 14:44:07
#3 ]
Regular Member
Joined: 11-Mar-2003
Posts: 154
From: Poland

In this case the measured response curve will be not only distorted by microphone frequency characteristic (which is by no mean flat), but also by noise introduced by 8-bit A/D converter in the sampler. The general problem with this application is that one has to measure microphone response first with some professional equipment, then it can be used with the program, assuming the program has possibility to account for microphone characteristic and to equalize it.


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ara 
Re: New software releases by OnyxSoft
Posted on 18-Jun-2009 15:07:25
#4 ]
Regular Member
Joined: 11-Jan-2006
Posts: 138
From: Unknown

Quote:
The general problem with this application is that one has to measure microphone response first with some professional equipment, then it can be used with the program, assuming the program has possibility to account for microphone characteristic and to equalize it.

And even then your results would depend on the location (room reflections).
(assuming that the software is not using fancy algorithms to filter out the reflections from the measured signal)

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Deniil715 
Re: New software releases by OnyxSoft
Posted on 18-Jun-2009 22:25:34
#5 ]
Elite Member
Joined: 14-May-2003
Posts: 4179
From: Sweden

@Krashan and ara

I know about all this, and it bugs me.

The next version will have the possibility to load an equalization curve to compensate. But right now, it's just fun seeing the difference between current speakers and different room positions and eq settings.

It doesn't have to meassure 100% accurately flat for this purpose.


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