Hi Remy, I use the signal generator all the time to calibrate the pot on the probes when in x10 mode using the square wave output. Note that the scope runs off USB power so you can't generate very hot signals, it's +- 2V (USB is 5V), you'll need to make your own external booster circuit for general use. The 5000 has a proper analog signal generator from what I can tell, and the 5000B adds a 14-bit sample based arbitrary waveform generator that runs at 200MHz, so absolutely fine for any audio applications, but for us audio guys we have soundcards to play back waveforms, so it's not that much use.
I wish they made this scope when I bought my first one, I bought the 12bit 4226 model, which still works great, but I would love this new one! Cheers, Andy On 9 March 2017 at 07:19, Remy Muller <muller.r...@gmail.com> wrote: > hi, > > AudioPrecision looks nice but it's way over my budget considering that it > won't be used on a daily basis. > > Looking at the specs, the QuantAsylum audio card only seems to have AC > coupling (down to 1.6Hz) and their oscillosccope page is a bit short on > details. > > Hacking a soundcard as an oscilloscope could be very convenient since it > benefits from all the standard audio softwares and can easily get beyong the > 2/4 channels, but it's limited to AC coupling, unless there are soundcards > that have DC coupled inputs? AFAIK most only provide DC outputs. > Furthermore having to do homemade matched probes and attenuators is not very > 'plug and play'. > > Since bitscope seems to only provide 8-bit ADC, Picoscope is thus very high > on my list, in particular the 5000 series. I'm wondering whether their > Arbitrary Waveform Generator option is really worth it though. > > @Andrew I just found a python wrapper based on ctypes > https://github.com/colinoflynn/pico-python > > Thanks for all the feedback! > > > On 08/03/17 12:16, Roshan Wijetunge wrote: > > Depending on how cheap and improvised you want to go, and how handy you are > with basic electronics, you can easily adapt your soundcard to work as an > oscilloscope. There are a number of guides on the internet on how to do > this, such as: > > http://makezine.com/projects/sound-card-oscilloscope/ > > I have used the following variation with good results: > > - Probe via resistor to mic input of mixer > - Mixer line out to line of USB soundcard > - Schwa Schope plugin running in any DAW host (e.g. Reaper) > > I used this setup as it utilised components I already had available, and it > has proved very useful for debugging audio hardware, being able to trace > signals through a circuit as well as biasing amplifier stages in pre-amps. > Using the mixer gave me control over input signal range though clearly you > have to be careful with gain staging so as not to introduce distortion to > the signal. > > I also improvised a signal generator using a Electro Harmonix Tube Zipper > guitar effects pedal. It's an auto-wah type pedal, but you can set the > resonance to maximum, sensitivity to zero and it generates a nice clean > stable sine wave. > > Best Regards > Roshan > > > > On 8 March 2017 at 09:57, Andrew Simper <a...@cytomic.com> wrote: >> >> Picoscope make the cheapest 16-bit scopes around (USD 1000), the >> 16-bit stuff from Tektronix is a lot more expensive (USD 31000 - >> that's right I didn't accidentally add an extra zero, it's x30 the >> price). I would recommend using the Picoscope and use Python's easy c >> bindings to call the Picoscope library functions to do what you want. >> >> Cheers, >> >> Andy >> >> On 7 March 2017 at 22:59, Remy Muller <muller.r...@gmail.com> wrote: >> > Hi, >> > >> > I'd like to invest into an USB oscilloscope. >> > >> > The main purpose is in analog data acquisition and instrumentation. >> > Since >> > the main purpose is audio, bandwidth is not really an issue, most models >> > seem to provide 20MHz or much more and I'm mostly interested in analog >> > inputs, not logical ones. >> > >> > Ideally I'd like to have >> > >> > - Mac, Windows and Linux support >> > >> > - 4 channels or more >> > >> > - 16-bit ADC >> > >> > - up to 20V >> > >> > - general purpose output generator* >> > >> > - a scripting API (python preferred) >> > >> > * I have been told that most oscilloscopes have either no or limited >> > output, >> > and that I'd rather use a soundcard for generating dedicated test audio >> > signals, synchronizing the oscilloscope acquisition using the >> > soundcard's >> > word-clock. However not having to deal with multiple drivers and clock >> > synchronization would be more than welcome. >> > >> > A friend of mine recommended using Picoscope which seems well supported, >> > has >> > a strong user community but no official support for python AFAIK. >> > >> > >> > https://www.picotech.com/oscilloscope/5000/flexible-resolution-oscilloscope >> > >> > I also found about bitscope http://www.bitscope.com which looks more >> > oriented toward the casual hacker/maker, seems more open-ended and has >> > python support, much cheaper too. >> > >> > What about the traditional oscilloscope companies like Tektronix, Rigol >> > ? >> > >> > Has anyone experience with any of those? or any other reference to >> > recommend? >> > >> > >> > _______________________________________________ >> > dupswapdrop: music-dsp mailing list >> > music-dsp@music.columbia.edu >> > https://lists.columbia.edu/mailman/listinfo/music-dsp >> > >> _______________________________________________ >> dupswapdrop: music-dsp mailing list >> music-dsp@music.columbia.edu >> https://lists.columbia.edu/mailman/listinfo/music-dsp >> > > > > _______________________________________________ > dupswapdrop: music-dsp mailing list > music-dsp@music.columbia.edu > https://lists.columbia.edu/mailman/listinfo/music-dsp > > > > _______________________________________________ > dupswapdrop: music-dsp mailing list > music-dsp@music.columbia.edu > https://lists.columbia.edu/mailman/listinfo/music-dsp _______________________________________________ dupswapdrop: music-dsp mailing list music-dsp@music.columbia.edu https://lists.columbia.edu/mailman/listinfo/music-dsp
