| Products > Test Equipment |
| Please recommend a scope (or other device) purely for audio testing. |
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| uktony:
Hello all, new member here - apologies if this has been asked before. I did search. I apologise for the length of this post - I tried to convey as much info as possible. My primary interest is audio equipment (strictly hobbyist). I do however like to measure what I build, and have some PC software and a FocusRite Scarlett 2i2 V2 for this purpose. However, the frequency response is limited to around 80 to 90k at best with this setup, and I would like to measure beyond this. Ideally I would like to measure to 500kHz or so. Initially I purchased a Picoscope 2204A and used FRA4Picoscope https://bitbucket.org/hexamer/fra4picoscope/wiki/Home to perform frequency response and phase plots (but using a DLL provided with Excel). Unfortunately the AWG in the Picoscope 2204A is limited to 100kHz, so this proved to be a limitation for me. I also currently have an Owon SDS5032, however it's a struggle to get bode plot data out of that scope, despite having USB and a supplied application (I have tried several of the opensource offerings, however most of those are written for the SDS7102 and don't seem to return the correct data from my scope). I then bought a Velleman PCSU200 which is not bad however the software is appalling, and it lacks any alternative so that's going. I have since researched many options, and am struggling to come up with something suitable. I have a very limited budget, and have looked at several of the device mentioned on this very blog including the Hantek / Sainsmart / Owon VDS102x / Intrustar etc. all of which seem to have there limitations - but as I'm only looking to perform basic audio measurements I don't believe sampling buffers / speed etc. are crucial to my requirement? I've seen the Digilent Analogue explorer Discovery which looks to be a good device, however I feel it might be using a sledgehammer to crack a nut for my requirement. Additionally I have also looked at buying a Picscope 2206B (AWG extends to 1Mhz) however this is also costly... So what would I like: * FFT / bode plotting * Downloadable data * Linux compatibility would be nice (to enable scripted testing) * An onboard DDS generator * USB connectivity *or* a method to store data (if not a USB scope) I would appreciate any suggestions. Thanks in advance, Tony. EDIT: I should have said - budget is £300 absolute maximum, and I would like to spend a lot less if possible! EDIT(2): I'm just exploring options that I may have missed - for example I also found the 'Tsunami' (Arduino based audio analyzer) https://www.crowdsupply.com/arachnid-labs/tsunami - but I feel it's expensive for what it is. (£88 in the UK - and the only stock I could find). |
| nctnico:
Digilent Analog discovery? |
| simone.pignatti:
the Pico 4262 is a good solution for audio testing, see the specs act pico website here https://www.picotech.com/oscilloscope/4262/picoscope-4262-specifications |
| schmitt trigger:
You may still be able to find an used Audio Precision analyzer at a reasonable price. AP has always been the gold standard of audio testing. |
| uktony:
--- Quote from: nctnico on June 12, 2017, 03:11:55 pm ---Digilent Analog discovery? --- End quote --- This is already on my list. --- Quote from: simone.pignatti on June 12, 2017, 03:19:08 pm ---the Pico 4262 is a good solution for audio testing, see the specs act pico website here https://www.picotech.com/oscilloscope/4262/picoscope-4262-specifications --- End quote --- Nice, but way over my budget. My budget is max £300. --- Quote from: schmitt trigger on June 12, 2017, 03:24:54 pm ---You may still be able to find an used Audio Precision analyzer at a reasonable price. AP has always been the gold standard of audio testing. --- End quote --- Again - way over my budget. I've seen these advertised for well over $2k on Ebay!! |
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