Max Fazio wrote:
Tim!You did a great job by making these samples!Iachieved similar results with a sample I grabbed fromhttp://personal.inet.fi/private/matador/cs-50_square.mp3(44.1KHz,16bit) Look at thewave. Never seen such a strange square ( but is THIS a square ????). Seebelow; anyway I would be extremely glad to work on your samples but mymailbox can't bear such attachments so I think it could be better if youcan actually manage an FTP folder;-)Thxagain!!!M----- Original Message -----From:Tim SiefkesSent: Friday, December 02, 2005 4:25AMSubject: Re: [yamahacs80] Square waveOkay.. to Max and ohesh (in Germany),I have sampled the square wave output from my CS80 into a pair of .WAVfiles, sampled at 192,000 khz 32-bit resolution.
The first file is a ten-second recording of the lowest "C" at the 16'setting, the lowest ordinary note you can play on the CS.
The second file is about a five-second sample made after sweeping thepitch down on the ribbon controller to where it sounds like discrete clicks.
Filters were wide open, no modulation or outside effects were used.Looking at these in my waveform display they do not look much like asquare wave at all! I'm attaching a small screenshot of the waveform Isee. Hopefully it will come through to the group. Do you want me to e-mailthese files to you directly? These .WAV files weigh in at 7.5 MB and 4.5MB respectively. I also combined them into a Zip archive which is about8.8 MB for the two of them together. I don't want to overwhelm anyone'smailbox with large attachments. The other alternative is I could post themto an FTP location where they could be grabbed at your own leisure. Pleaselet me know how I can best get these files to you.
-Tim S.
<Minneapolis>Max Fazio wrote:
Thankyou so much ! Correctly my friend Laurie wrote me that the audio resultof the pure wave could be heavily affected by the actual settings of thefilters' trimmers into each M-board.I'm aware of it and I will do my experiencehaving the final results on a statistical shape.Irecently analysed the sine wave into the ring modulator and ended up withsome correct datas ( or at least as less approximated as I could ).Well,the sine wave I can hear into the modulation wave ( and in the PWM , SubOscand within Chorus LFOs) isn't a plain sine: it consists of a "wrong" sinewave with a single harmonic tuned 2oct upper and with 4% of the total amplitude,I was able to reproduce it digitally with a common FFT generator : thisimplies the fact that , within ringmodulation there is something like a"hidden" sine which modulates the signal togheter with the fundamentalat two octaves upper....that's why its sound is SO rich!!Thxagain for your help!Max