Audio Analyzer Suite v 1.2.0.3 available for download

Download link:
www.dropbox.com/sh/ecgo4oiw7u...

[@PeterRidge]

Based on the uproar that occurred when an early version of this suite stopped working due to an external dependency going offline (which, thankfully, is no longer an issue), I think your software is used more than is apparent on the surface. It may simply be a case of "no news is good news." If it was poorly implemented, I'm sure you'd hear a lot about it. Keep up the good work, Jake, and don't lose heart!

[@cranegantry868]

This is what I need. Thank goodness you exist. Thank you.

[@ianmac3904]

Your software is the reason I got an Analog Discovery! Thanks for the great work you do!

[@Blueglow]

I would highly encourage the continued development of this product. Many of us use it and find it great for the average bench tech who isn't trying to produce highly scientific measurements. Its the best thing out there.

[@TheStuffMade]

Thanks, I'm not going to abandon the software. It will always be available and I will fix breaking bugs and make sure it keeps working with latest version of the Analog Discovery software. I might still do the occasional feature update. Cheers, Jake

[@stevenichols5708]

@@TheStuffMade where can we support you? Patreon, PayPal?

[@farad37]

Your sw is the principle reason I purchased the Analog Discovery 2. Please don't dis-continue your efforts. Thank you for taking the time to keep the sw current

[@wardr1]

Per page 8 of the documentation, I can confirm that you are not wasting your time and it's really useful! Also, many thanks for creating this awesome bit of software.

[@albertvalientecasas3553]

This software is incredible, can’t wait to check the new updates! Thank you very much for it!

[@docholliday3150]

Always excited to see an update from you. People love this software. We THANK you. Doc

[@slater529]

Thank you for this amazing software! I really appreciate all the hard work you have put into this.

[@raymondlonghitano3117]

This is one of the most useful tools I have ever owned. I build tube amps from scratch, this with a Pico Scope and a uTracer3+ helps me validate what I could only guess at with subjective listening. I love this thing!!!

[@warrenanderson7342]

I use this app frequently. Thanks for keeping it updated.

[@frodo603]

I use your stuff when tweaking tube amp projects for improved performance. I do generate informal reports with snip for my records. Very helpful.

[@erikhovdahl]

GREAT software! Im a electro acustic engineer. One of the two that did all the electro acustic einginering of PA on all the olympic arenas in Lillehammer. Then we did not have such a fabulous test instrument as this package! Great work, keep up the brilliant job making this a truly gem of a program!

[@TheStuffMade]

Thanks, much appreciated, always happy when my software is useful. Cheers, Jake

[@markmurante3609]

Thank you for this software! I ordered the analog discovery and I am excited to use this software. It will be a great tool to test and evaluate my audio gear.

[@giorgiorossi5245]

Fantastic job. One of the best piece of software

[@SkunkieDesignsElectronics]

Thank you for creating this, amazingly useful software for audio gear tuning. I use it regularly on tube amplifiers.

[@TheStuffMade]

Thanks, much appreciated, I watched some of your videos, great content, exactly what my Analyzer suite what meant for. Small tube amps are good fun. I'll release a new version very soon, it's been in development for a while, mostly bug fixes, but the major added feature is a very accurate phono stage measurement feature for both MM and MC stages, it does however require a small custom plug in board. Cheers, Jake

[@SkunkieDesignsElectronics]

@@TheStuffMade Very cool. This has been a VERY useful tool for comparing different amps to each other and seeing where they fade out and/or need some help. And also if changes I make actually improve or hurt things. It's also been super helpful in choosing the right amount of NFB to get the best performance as well. I haven't played with some of the other stuff it does, but look forward to the phono stage update! I honestly wasn't exactly sure how to test those preamps on that shootout, but I just hooked up a 100K dummy load to the output, set the Vrms in on each one to get equal output power coming out, and tested them like I would a normal amp. Seemed to get data useful for comparing them against each other and also showed the gain differences.

[@JonSmith-fc2mm]

Thanks! This will be a big help in troubleshooting amps!

[@gregoryjwellls]

I recently acquired a Digilent AD3. Shortly thereafter, the KZbin algo recommended this video. A home-run suggestion it appears! I ordered the parts for the interface board and I'm currently starting assembly. Thanks for the inspiration!

[@simon.pawlowski]

Just adding my thanks for this software. I've been using it for a while, so just wanted to let you know it's been a great time saver.

[@TheStuffMade]

Thanks! Always welcome to let me know if you have any trouble or any feature requests. Cheers, Jake

[@Delatsch]

Also if you have a patreon or any other paypal donation option I would like to support your efforts and I am sure many others would too!

[@telefunkian]

Thanks again for an amazing tool, great work!

[@el_arte]

Great software! Recommended by lots of people in the DIY community!

[@leventecsovari]

Thank you for phenomenal sotware. This is the reason I bought the Analog Discovery 2 board. Huge thank's for your work! One request for next version, please add printing function to the software.

[@albertvalientecasas3553]

I bought the AD2 for use the Audio Analyzer Suite too.

[@AndreSHoek]

Purchasing AD2 just for this, brilliant! I'm new to the project so this was probably asked before. 1. Has anyone in the community done a comparison between the AD2, your software and a traditional hardware audio analyzer? 2. Ever considered going open source? I for one would be happy to contribute. Thanks again for the hard work and generosity!

[@Delatsch]

I must say that is the best and probably the only software of its kind! As others pointed out the reason there is not much feedback is because it works so great. I love the voltage option you've added which is very valuable for testing preamps! Do you have the gerber files for the adapter you've shown in the manual?

[@curtislucka9954]

Thanks for this great software! This is a great companion to AD2 and provides features not present there. I am a fan of both, and cross checking results with other instruments, like my HP3903B and Keithley 2015THD, I have confidence in what they deliver. Please keep it up and I especially like your videos that show practical examples using this stuff - I found your video on the new Pre-amp/Phone Stage tool outstanding. Looking forward to installing the latest version here. Thanks again!

[@musicstevecom]

So I research and found people like the HP3903B better than the Keithley 2015THD? so than if you had a choose between the three which would you pick? or any other software out their? like the QA403 Audio Analyzer? looking for THD and noise for now testing higher output Amps.

[@curtislucka9954]

@@musicstevecom The HP8903B is an audio analyzer so has more audio testing capabilities than the Keithley 2015THD. That being said both are great but come from the 80's/90's and limited to around -95dB THD+N measurement. I would lean toward the QA403 that can measure down to around -120dB THD+N and much lower for just THD. It also has excellent software to support quite a few audio tests - the price isn't that bad - I think about $550. An HP8903B in good condition would run over well over $700 on eBay. Although if you have $30K lying around then Audio Precision can't be beat!

[@musicstevecom]

@@curtislucka9954 Hard to find the QA403 and it, versus the Analog Discovery 2? Thinking of going w software? Thanks

[@curtislucka9954]

@@musicstevecom I should have mentioned that for the money AD2 with it's excellent software/GUI is hard to beat, especially with the extended graphing capabilities of the excellent Audio Analyzer Suite. I have used AD2 since it first came out and it correlates well with the 8903B and 2015THD. More capabilities emerge with the AD2 Wave Forms software updates, so it has been a good investment all around. While I have not used the QA403 it does appear to be able to measure lower distortion and noise levels, and provides more audio tests, as mentioned before (kind of a poor man's AP). The QA403 is experiencing some supply chain difficulties at the moment, but I plan to try to snag one once available again. Good Luck!

[@adamfrandsen]

Wonderful software!! Thanks for the hard work

[@StealthParrot]

I have just discovered this through Gabster's channel. What an amazing piece of software, it is remarkable that you offer it for free (though I do notice this video was posted 3 years ago now so I am very late to discover it and assuming no longer being updated). I own a Hantek usb scope but this does so much more that is useful for audio troubleshooting so looking to get an Analog Discovery 3 now. Thank you.

[@TheStuffMade]

Hello, thanks, the software is still being updated, I have a playlist on my channel where you can always find the latest version. I'll be releasing a new major update within the next few weeks with a number of new feature plus a lot of bug fixes. Cheers, Jake

[@joaogonzaga6039]

Thanks I lot for this SW, it will be very helpful for my new project!

[@TheStuffMade]

Always good to hear it's useful, let me know if you run into any issues. Cheers, Jake

[@Blueglow]

Also do you have a PCB gerber file or similar and parts BOM for the interface board in your new documentation?

[@joepalovick1915]

Please keep this going. The reason I bought an AD2 was primarily to run this software. Also as others have mentioned please let us know if you have a Patreon page. Thanks!

[@klauspfeifer2159]

This is a amazing software. Please keep up working on it and updates.

[@vsalasarcr]

Hello, excellent video, thank you very much for the information.

[@jakep8484]

Thank you for the work you do, I hope this comment makes you feel appreciated because you are. Keep up the good work.

[@PatrickInCayman]

Thanks for this! Great tool!

[@rudigerhoppe5708]

Uhh, I bought the AD2 because of your software. Works well, don't let it go unsupported.

[@brucedowd2501]

I have it sorted now thankyou

[@user-ur5uc9dn2x]

Thanks!

[@johndooley2401]

Great Software please keep it going

[@EngineeringVignettes]

Thanks for the updates. Well.... I use it anyways. It's too bad more ppl do not. Cheers,

[@peteb2]

Wow, i only found out about this just now! It also says that KZbin isn't exactly letting Subscribed fully Notified followers know about your new videos... I'll need to a have a revisit with my AD2 that's for sure, so thanks for all your work thus far. Oh & look, there's a comment below from the 'transformer guru' Delatsch below too!

[@davids840]

Really insteresting comments on the BNC adapter in the manual. I would enjoy a video about that Otherwise thanks for the time you put into this project!

[@TheStuffMade]

Thanks, yes, I don't recommend the BNC adapter for general use because it shorts all the negative connections together, so that's fine if you only measure tube amps and you know what you're doing, but since many amps these days are class-d with bridged outputs then you'd be shorting the amp outputs together and likely end up with smoke. This video from Gabster explains it quite well: kzbin.info/www/bejne/an7ZiHubfphsabs Cheers, Jake

[@curtisgriffin7924]

An outstanding piece of software that took a large amount of your time I am sure. Definitely would like to get the gerber files and a BOM for the little connector board you designed to connect to the Analog Discovery unit. The one thing I see is that this software is for such a small group of people may be one of the reasons not that many have been downloading it. Again thank you for all your hard work

[@TheStuffMade]

Thanks, much appreciated, I did originally only make this software for my own use when I repair equipment and I question if it's worth the effort to make public releases considering all the garbage I have to deal with.

[@jakep8484]

Does this version need to be on a computer thats online to use? I heard that was a big issue with the first version. I am building audio amps for fun and really like what you did here, it will be helpful, thank you!

[@darthbubba866]

Thank you for your continuing efforts! 👍👌🙌😄

[@dinochan1]

Nice, thanks

[@warrenanderson7342]

I reviewed the user guide file and noted your concern about usage and value: whether anyone really needed the information, and if it was worth your time to develop it further. I would be interested in having the complete file, but, with the information you have now provided I could probably get by with what is already there. I think you could get a better idea of the number of people interested if you would, on a fee basis, make available a cad file (or pcb) and bom for the jig you described in the user manual. Don't know what it takes to set up a payment system on KZbin, but you could probably do it on DIY Audio if you couldn't do it here. In fact, given your admonition about scope grounding risks, I'd say almost anyone using the Audio Analyzer Suite would be happy to obtain the jig. I certainly would.

[@antiquephotographyodedlevy]

Hi I just wanted to thank you for creating this amazing software! I surly appreciate the effort made to make it. I am using it with the ADP3450 Please keep up the good work 👏👏👏🙏

[@andymouse]

Just found you and subbed ! looking forward to trying your software....cheers.

[@TheStuffMade]

Thanks, hope you find it useful. Cheers, Jake

[@sandersassen]

Hi Jake, first off I wanted to say thanks for this great piece of software! Secondly I was wondering if there's a way to make the Audio Analyzer Suite remember any settings you changed so you don't need to change these again the next time you run the program?

[@TheStuffMade]

Thanks, it's a good suggestion and something I've been working on, so far it will remember the settings for THD vs Freq and THD vs Power, plus I've added a more accurate phono stage measurement for both MM and MC, it does however require a small plugin board. I had planned to release a new version back in December, but work got in the way so it might take a while before next release. Cheers, Jake

[@carlosbeltran9216]

Thanks for the update! Also I see that you have a PCB layout for your jig in the PDF instructions. Can you share the files for the PCBs?

[@Elecifun]

Still loving the software but have an issue when trying to use channel 2. I have tested the output of wave gen and scope and all seems fine but when trying to run tests even scope on channel two nothing. Tried using older AAS software and the same out[put. Have you any suggestions? PS once on x1 I realised I did not need to calibrate in AAS only in Waveforms.

[@TheStuffMade]

Thanks. Just split the W1 output for both channels. The reason I did it like this is because I need to mix the two channels for the intermodulation distortion measurements. Cheers, Jake

[@Elecifun]

@@TheStuffMade Cheers Jake, that sorted it.

[@jansen2810]

I like your SW very much, using it as a hobbyist. I also use Arta, but that's much more of a hassle to get it working properly. I made that box of Blueglow Electronics. Biggest problem was to get a suitable housing -;). So don't give up please!

[@TheStuffMade]

Thanks, much appreciated. No worries I'll continue to release new versions. I have a new version ready with added features to do very accurate measurements on MM and MC phono stages, I just haven't gotten around to releasing it. Cheers, Jake

[@insurrectionindustries1706]

Hi, Thank you for making this tool. I recently purchased the analog discovery kit just to use this but I am getting baseline distortion even when I am just going from input to output and I can't seem to calibrate the device to remove those 3rd and 5th order harmonic spikes. I am hoping that there is a way to calibrate the device but I can't figure out how.

[@KissAnalog]

This software looks great. It requires the Discovery device thought right ($400). Your software probably makes that a good purchase...

[@TheStuffMade]

Yes it only works with the Analog Discovery, I did start working on supporting audio interfaces/soundcards, but never completed it. It's a shame the Analog Discovery is so expensive now, back when I bought mine it was less than $200. But it's probably still cheaper than buying an old HP or Tektronix distortion analyzer plus it includes scope, signal generator, low frequency spectrum analyzer and logic analyzer. Cheers, Jake

[@and1424]

@@TheStuffMade Please mod it to support other audio interfaces! You can open a patreon page so we can all donate! Thanks.

[@TheStuffMade]

@@and1424 I did start work on supporting all windows compatible audio interfaces, but I ran into some issues and never really got back into it. I think my mistake was trying to make the same software compatible with both, it would probably be a better approach to make 2 different versions. One for Analog Discovery and one for general audio interfaces. Anyway, I'll look into it, but right now my real work is quite busy, so it will take a bit of time. Cheers, Jake

[@karlzimmerman4256]

@@TheStuffMade I think if you open a patreon account, the fans of your software will gladly donate to help you and as a show of support and appreciation for your efforts. Cheers, Karl

[@alexarif2835]

Hi, thanks for your videos which I enjoy. The AudioAnalyser shoftware shows four lines in scope more: two are the sine wave of the channels but what are the none sine wave lines ? Secondly do you know a way to use the software to chart a phaseshift plot from input to output ?

[@TheStuffMade]

Hi Alex, thanks, the extra plots in the scope view is the signal with the fundamental tone notched out, so basically showing the distortion plus noise waveform. I haven't added a phase plot, but I probably should. You can do a phase plot using the Digilent Waveforms software, it's under the Network tab and it's a bit fiddly to configure but it will do the job. Cheers, Jake

[@InsideOutElectronics]

Great software! ! Thank you. Question about Frequency Response feature. Is it possible to change vertical units to dBu or at least Vrms ?

[@TheStuffMade]

Thanks, the software currently only supports displaying dB relative to 1kHz for the frequency response together with the gain in dB as it's the most common usage to see how much variation there is in dB across the frequency range. I might add Vrms, dBu and dBV in the future. For now you can manually calculate the values as you know the input voltage and the gain in dB. Cheers, Jake

[@johnnorton6085]

Thank you so much for this software. It is really appreciated. Again if you have a pay pal account I would like to donate.

[@el_arte]

Also, that board you recommended building to maintain differential behavior with BNC connectors, if you happened to have CAD files we could send to JLPCB or other on-demand manufacturers, it would be awesome!

[@transit2digital16]

Hi superb work, thanks. Question: I got a UHER report reel to reel tape recorder, which can be run in four different speeds. The recorder has no playback/monitor head. Would it nevertheless possible to get an rough overall frequency response using your analyzer ? Somewhat record a sine sweep and play it back while displaying the frequency response.

[@bansci]

Hey, thanks for a great piece of software! I notice you have a lower THD than I do, even when directly connecting W1 to 1+ and grounding 1-. I can get to 0.04% at best but you seem to get 0.01%. I'm pretty sure it's the wavegen as I can get 0.01% from another source (HP 35665A). Is this a known limitation of the AD2 over the AD1? I'm testing the Pass F5 amplifier and it supposedly can have a THD even lower than this and it certainly seems so but I'm hitting this limitation

[@TheStuffMade]

Hi since the AD uses a DAC to generate the wave output, you'll need to raise the voltage (use all the bits) to the get lowest distortion. Doing that will let you go as low as 0.01% distortion. The design and performance of the AD1 and the AD2 is exactly the same, only difference is the AD2 got a variable output power supply that can deliver more current than the AD1's fixed supply out. Cheers, Jake

[@bansci]

@@TheStuffMade thank you! I figured this out eventually but it's really helpful to have this confirmed. I now use full scale output from the DAC and use an external divider to get it into the range I want. Thanks again for a great piece of software! I have one other comment/request, waveforms can use soundcards, and there are some sound cards (i.e. E-MU 0404 usb) which have THD at 0.001% in loopback. Do you think you might add device selection to the tool to allow analysis via these? I would warn, the E-MU 0404 usb only has windows xp drivers, but it works great in modern Linux

[@TheStuffMade]

@@bansci I did start work on adding support for windows soundcards as part of doing some testing on an Asus Xonar USB soundcard. I did a video on it some time ago: kzbin.info/www/bejne/fqHWg2CjZdRpaZY but I never really got back into finishing the work. I will probably have a look at it again at some point, but my work is quite busy at the moment. Cheers, Jake

[@Elecifun]

I am loving this software and the work you have put into it, thank you. I do have a naive question. How do I connect my input and output for the initial calibration? Many thanks in advance. PS I would never have bought the Analog Discovery 2 if this software were not available. So never think your work is not appreciated, it is very much so.

[@TheStuffMade]

Thanks, I assume you mean the calibration in the Waveforms software. I usually use some small test wires and a small breadboard for the calibration, just make sure you have good connections. This calibration is saved so you don't really have to redo it unless you update the software. However to be on the safe side I redo the calibration every few months or so as I expect there will be some drift. Cheers, Jake

[@Elecifun]

@@TheStuffMade I love documentation and have read what you have written. I especially like the part where you can't be bothered to write anymore if no one, very few will read it. I understand completely.. but, I would like to read more documentation. I'm going to be publishing videos using your software I bought the Analog Discovery 2 because of it. Jake, please keep up your great work so I can benefit from it.

[@russellmason5674]

Just tested a stack of vintage car audio amplifiers using your software and it's totally awesome! Your software convinced me to buy the hardware, thanks so much and let us know where we can donate if I missed it somewhere. I'm running on a macbook air with parallels and windows 10. I have unfortunately not had success getting it to run on Windows 10 ARM release on on the Mac M1 - any suggestions would be much appreciated (waveforms will not recognize the AD2)

[@Johndoe-dk1fn]

Many thanks for this wonderfull software. 🙂 ... Is there a way to calibrate the frequency response with a first pass by looping the generator and the 2 probes, to have a flat level at 0db, then measure the DUT ?

[@rondrew1]

@TheStuffMade Hi Jake, I do have the Digilent Waveforms installed. Do I need to do something to make the the 2 software programs communicate? I suspect the problem is my ignorance of the Windows platform. Appreciate your help. Ron

[@TheStuffMade]

Hi, please check and make sure it's the latest version of the Digilent Waveforms software, perhaps uninstall and download again. The Audio Analyzer doesn't work with some of the older versions of waveforms. Cheers, Jake

[@Blueglow]

Curious if anyone has tried this with the new AD3 unit? Also, any updates in the works? This is still one of the best solutions out there for simple graphs and measurements.

[@TheStuffMade]

Hi, I haven't heard from anyone trying the software with the new AD3, but I can say if there are any compatibility issues then I will fix it. I have been sitting on a version update, with some new features, for quite some time. It just needs a little bit of testing, bug fixing and polish. I did start working on it again recently.

[@Blueglow]

@@TheStuffMade Thats awesome to hear. If you are committed to making the AD3 work, I'll order one and if there are issues, I'll ship it to you to test with and get working. Sound like a plan? Also glad to help test your new release if you need a tester.

[@TheStuffMade]

@@Blueglow I am 100% committed to making sure it works with AD3. It would be great to get a confirmation, I did have a couple of people ask already. Some of the new features require custom plugins, like the phono stage measurements and the speaker impedance/phase measurements. I'd be happy to send you some to try out with the new version. You can contact me on the youtube email. Cheers, Jake

[@el_arte]

@TheStuffMade Trying to use the software to measure a headphones amp. It has a 4-pin XLR output jack, pin 1 = L+, pin 2 = L-, pin 3 = R+, pin 4 = R-. It’s a class D circuit. I tried making differential measurements, but levels are way low.

[@TheStuffMade]

Hello, it should be fine, the AD got differential inputs, just don't use something like the BNC plugin board as it will short the negative inputs to ground. Also use appropriate loads e.g. 30 to 600 ohm on each channel. I did some headphone amp measurements in this video: kzbin.info/www/bejne/n2iai3ymq5xgiqc Hope it helps. Cheers, Jake

[@el_arte]

@@TheStuffMade Thank you, Jake, I indeed got it to work!

[@Elecifun]

Hi Jake. If you don't mind, another question. Is there a way to use the AD2 to measure BTL outputs on low powered amplifiers, without buying expensive differential probes?

[@TheStuffMade]

The AD2 got differential inputs, it's no problem connecting an amplifier with bridged outputs, such as most class D amps. Just make sure you don't use a plugin that turns it into single ended inputs such as the official BNC board. Cheers, Jake

[@Elecifun]

@@TheStuffMade Cheers Jake. I think and I hope I'm thinking right. Using the MTE cables scope leads + and - are differential and I can plug them directly into the output of a bridged amplifier, say channel 1, as long as I ground to the AD2 using the let's say the amp under test power input ground which should be common to the circuit but not the amp output. Do I have this right? Cheers in advance.

[@TheStuffMade]

@@Elecifun Sounds right, it's enough to just connect ground to the amps inputs, the AD input is high impedance so very little current will flow through that ground. And of course, don't forget load resistors on the amp output. Cheers, Jake

[@Elecifun]

@@TheStuffMade Thank you very much for the tips, much appreciated.

[@cobar5342]

It is used a lot!

[@el_arte]

FYI, it seems the dummy load value is not reported correctly in the top right corner of the bottom right Scope view. Set a dummy load value other than 8 ohm to see this.

[@kf4vux]

Thank you! Where's the tip jar? I'd love to buy you a beer/coffee for your hard work. This software saves me a ton of time and enables me to understand changes made to tube amplifiers very quickly.

[@TheStuffMade]

Hello, I'm happy you find the software useful, that is enough for me, thanks. Cheers, Jake

[@esci8978]

Hello.. Wondering if this is the latest version of the Audio Analyzer Suite and if compatible with the latest version of Wave files..? Version: (3.21.3) - Released October 19th, 2023… Thank You

[@TheStuffMade]

Yes, it should be fine, I've done a bit of testing with it and not encountered any issues. Install the 64 bit version. Cheers, Jake

[@esci8978]

Thank you for your reply Jake… Your work is much appreciated..! 😊

[@IntoTheLab]

Does the "Audio Analyzer Suite" work with additional models from Digilent such as the ADP3250 and ADP3450? My guess would be yes as they are based on common technology but as those higher end devices cost several times more, it would be helpful to know prior to buying them. Any comments appreciated, especially from the software author.

[@TheStuffMade]

I doubt it would work out of the box and I haven't heard of anyone testing it. But I agree the new devices are very similar to the Analog Discovery, so it probably wouldn't require much to make it work. However from the specs, it looks like the only advantage of the ADP3250 and ADP3450 is more scope channels and more bandwidth plus a nicer enclosure with BNC connectors. For audio measurements we don't really need more bandwidth than the Analog Discovery already got, and there is another difference, the Analog Discovery got balanced inputs whereas the specs for the ADP3x50 says they have single ended inputs, that means if you try measure an amplifier with bridged outputs (e.g. a class D amplifier) then you'll be shorting the amplifier outputs using ADP3x50. This makes the Analog Discovery better suited for audio measurements. Cheers, Jake

[@iowachuck]

Please keep sharing your software, it is great!

[@drw951]

Great software. Now I plan to get the Analog Discovery unit and build a jig for interfacing. Perhaps your jig design if you release it? Looking forward to actually testing the audio gear I'm building. Thanks and keep up the great work!

[@alexarif2835]

Hi, what is the reason that the IMD measurement was taken out of the manual ? in previous versions its part of the setup.

[@TheStuffMade]

It wasn't removed, the IMD feature still works the same way as before. I started updating the documentation but it's not been a high priority to finish it. I have an updated software version and a new design for a plugin board that will support most of the features of the software including IMD. I also have a new phono stage plug-in that will allow very accurate measurements of both MM and MC inputs all the way down to 0.1mV. I'll release it soon, but currently I'm too busy with work. Cheers, Jake

[@alexarif2835]

@@TheStuffMade Thanks for your reply. I made a PCB based on the current version, cant wait to see how it all works. :-)

[@ttakotube]

Hi, Thats great work! Any news about a possible version supporting soundcards as well? (for hihger SNR)

[@TheStuffMade]

I did start working on supporting soundcards and audio interfaces but I never found the time to finish the work, but sure if it's something enough people are interested in then I can probably find the time to complete the work. kzbin.info/www/bejne/fqHWg2CjZdRpaZY Cheers, Jake

[@ttakotube]

@@TheStuffMade I would love it :-) And I saw many over on the eeev forums as well :-)

[@TheStuffMade]

@@ttakotube I'm in the middle of moving at the moment and have a work contract that's keeping me busy, but I might have some time to work on it after those are completed. Cheers, Jake

[@rochtourigny8140]

Hello and thank you for the updated version! I think there is an issue with THD Vs freq, at frequencies above 10 khz, values are about .009% which I think are too low for a 14 bit device. THD + N looks good at about 0.02% across all frequencies. Can you look at it and comment as to why the low number figures. Thanks again!

[@TheStuffMade]

Hello Roch Tourigny , If we do the calculations: 14 bits will give a dynamic range of ~86dB (20 * Log10(2^14) + 1.7) that gives a theoretical minimum distortion of 0.005% (10^(-86/20) * 100). However I suspect you have perhaps set the bandwidth too low, keep in mind to get 2nd harmonic distortion you need the bandwidth to be more than twice the frequency, and for 3rd harmonic distortion it must be more than 3 times the frequency, also keep in mind that doing more averages will increase the resolution and lower the noise floor. You can choose between plotting THD+N, THD, or only 2nd harmonic/3rd harmonic distortion to get a better idea of what kind of distortion/noise you are looking at. Hope this helps. Cheers, Jake

[@musicstevecom]

@@TheStuffMade So how does this product / software work w everything you mentioned? also the QA403 Audio Analyzer?

[@TheStuffMade]

@@musicstevecom Hi, the current version only works with the Analog Discovery 1 & 2. I did start working on supporting all Windows sound cards and audio interfaces. If the QA403 works like a regular sound card then it will likely be supported at some point. Cheers, Jake

[@musicstevecom]

@@TheStuffMade will it work w the new Analog Discovery ADP 3250 have you seen this yet? I'm going w Analog Discovery after looking at all the others , Thanks I hope it works w it

[@TheStuffMade]

@@musicstevecom I haven't heard of anyone trying it on the new pro range of Analog Discovery devices, but I doubt it will work. Also I wouldn't recommend the ADP 3250 for this purpose as it's only got single ended inputs unlike the AD 1 & 2 with differential inputs. This is important if you measure an amplifier with bridged outputs, such as most class D amplifiers, you'd short the output to ground and something will start to smoke. Cheers, Jake

[@el_arte]

Any news on an update? If there are bug fixes, it would be awesome to get them!

[@esci8978]

What is the lowest THD that can be measured (i.e what is the loop back) THD .. Can lower THD values be achieved with an external signal generator.?

[@TheStuffMade]

The AD is a 14 bit device, lowest distortion is around 0.01%. The performance is comparable to the classic distortion analyzers from HP, Tektronix etc. It might be possible to get slightly lower THD values with an external generator, however I don't see how you'd sync them. Did you have a look at the PDF included with the software: "This audio measurement suite is primarily aimed at people doing repairs of audio products to easily perform a number of measurements and diagnose the device being repaired, however it can of course also be used to aid design of audio circuits etc. The Analog Discovery hardware is limited to 14 bits, this does mean it’s limited in the dynamic range, however it does allow measurements at higher frequencies up to 10MHz which can be very useful when working with switching/class D amplifiers or perhaps investigating an amplifier circuit going into oscillation far outside the audio frequency range." Cheers, Jake

[@esci8978]

@@TheStuffMade Thank you for your reply Jake… Your work is very much appreciated..

[@ubacow7109]

Is this significantly diff from like REW ?

[@rondrew1]

I’m having trouble loading this software on my Dell laptop. I get a fatal error: Unable to load DLL ‘def.dll’ The specified module could not be found. Any idea what this is about, and what I can do to correct it? Thanks for any help.

[@TheStuffMade]

Hi, do you have the latest version of the Waveforms software installed? It's required to communicate with the Analog Discovery. Cheers, Jake

[@rondrew1]

@@TheStuffMade Hi Jake, I do have the Digilent Waveforms installed. Do I need to do something to make the the 2 software programs communicate? I suspect the problem is my ignorance of the Windows platform. Appreciate your help. Ron

[@SirioAstarot]

Hi Sir, do I need WaveForms to use it? it's compatible with Analog Discovery Pro ADP3450 and Adapter BNC Male to 6.35mm 1/4 Inch Male Audio Cable to analyze my audio interface? Feature Request: - Acoustic Response - Frequency Response - Crosstalk - Signal Analyzer - Input sample rate - Multitone Analyzer - Generator signal (pink noise, sine noise, white noise, custom) - SINAD (Signal-to-noise and distortion ratio) - SNR (Dynamic Range) The software APx500 Flex audio analyzer is too expensive, but I would pay for your project.

[@TheStuffMade]

You need to have the waveforms software installed as it relies on the API. It's only been tested to work with AD1 and AD2, I doubt it works with the ADP3450 as it's not really feature compatible with the older AD modules. Many of the features you request are already available in the software. My software is free, it's just a hobby project. Cheers, Jake

[@SirioAstarot]

@@TheStuffMade I want to buy the ADP3450 for analysis of audio devices, such as interface and sound cards, this model is the most advanced and I will test it with Waveforms and its software, and I will be commenting on my compatibility results. Likewise, it would be a good idea for this project to be your cover letter to be an active Digilent engineer, being part of a company from a hobby project is great, your project becomes an added function to the next version of Waveforms, to professionals in the audio industry. I'll be in touch, 👍🏻 My best regards.

[@TheStuffMade]

@@SirioAstarot You can do most of the measurements using the Waveforms software, it's just not as convenient. Anyway, while the ADP3450 and the AD2 are very nice devices keep in mind they have a limited dynamic range (just 14 bits) compared to most audio interfaces these days being 24 bits. Meaning they are not ideal for audio performance measurements, but still great for basic testing and fault finding during repairs. Cheers, Jake

[@KUDJU]

We are using the software do not stop updating it please :>

[@akdenyer]

Will this work with Analogue Discovery 3???

[@TheStuffMade]

Yes

[@edwinatkin5282]

i just started using your great software but I am getting negative gain numbers and not sure why. I am testing the little 6BM8 amplifier that I built from Skunkie's design.

[@TheStuffMade]

Try use the scope view and maybe a 200mV 1kHz Sine wave and see what the output is. Note you should always have a load on the outputs when testing tube amps, otherwise you could damage the output tubes. Cheers, Jake

[@edwinatkin5282]

Thanks Jake. I am using dummy loads. here are the numbers: .011Vdc, 2.61Vrms, 7.09Vpp.

[@TheStuffMade]

@@edwinatkin5282 OK, it's definitely got gain with 0.2V in and 2.61V out. Where did you see the negative gain?

[@edwinatkin5282]

The THD vs Pwr graph shows Status gain: -2.15db. Frequency Reponse graph shows -2.25 db gain at around 1k Shouldn't it be around 15 db/

[@TheStuffMade]

@@edwinatkin5282 Sorry I didn't see your reply, I think youtube didn't notify me. Are you using any attenuation? Sounds like there might be an issue with that gain status on that screen, anyway, the intended way to measure the gain of your amplifier is to use the frequency response tab, here you get 2 values for each channel like x.xx dB / y.yy dB, the first value (x.xx) is the level compared to the level at 1kHz, the second value (y.yy) is the gain. So if you do a frequency response and set the cursor at around 1kHz, do you get the correct gain? Cheers, Jake

[@coucouj2781]

Hi can I use with picoscope?

[@TheStuffMade]

Nope, this version is Analog Discovery only, but I will release a version for Audio Interfaces such as Focusrite etc at some point.

[@diegoraffa503]

@@TheStuffMade Outstanding job!! It would be great if you could also consider support for low cost but good performance audio interfaces such as the Behringer uca222/uca202. Thanks for the time you put into this project!

[@normbal]

Any LINUX users figure out how to run this yet?

[@agussugiono2362]

Keep Up the great work Bravo

[@agussugiono2362]

Have been using your software with AD3, great software. Thanks for the great works.. But I found problem in wavegen level, when I set the level to 0.2Vrms, the oscilloscope reported the level is 2V.

[@agussugiono2362]

Found the problem. If the number separator different than USA format, the application will not working properly. Before I used Indonesian numbering format, after changed to USA numbering format, everything worked OK

[@Jimantronic]

Thank you for this software 🙏 Really some awesome work and very much appreciated to make this powerful tool so straightforward and accessible 👍 You should add a little donation link into the software like Room EQ Wizard do. I would happily click and buy you a virtual drink for your work 🙂