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Noise-Generator

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Posts posted by Noise-Generator

  2. SID "Clones" List/Sources/Experiences

    in MIDIbox SID

    Posted · Edited by Noise-Generator

    No SID Clone is out there with an analog filter or they would advert or at least mention it because this is special. It's all DSP = Digital Signal Processing, what is also everything your VST/AU or Standalone Software Synths or Virtual Analog Synths like Virus do. The only thing which is analog is maybe the (kind of) vca or better the (end) amp stage which is a transistor or op amp.

    (I killed a swinsid and it behaves like a dead sid, no more amplification, but you can hear it still generates waveforms very silent)

    But it's not too complicated to use an external or midibox sid controlled vcf, it's implemented but you need a cv out module and hack some code.

    As I said, the easiest way is to put the audio out of the sid through an external filter.

  3. SID "Clones" List/Sources/Experiences

    in MIDIbox SID

    Posted

    Still need to talk about that

    On 9/27/2020 at 9:03 PM, Noise-Generator said:

    "No big deal. It's the same thing with all the stereo SIDs. You need to connect J14 of the second SID module of a Core to the additional input of the SID. I show you but you need to figure it out for the mb 6582.

     

    http://ucapps.de/mbhp/mbhp_8xsid_c64_psu_optimized.pdf"

    It is not true what I said about that, it depends on the model. It is a little bit confusing and here is why:

     

    The MBoxSID uses 1 Core for 2 SIDs and they share these pins and each have an separate serial input from the core:

    23ED9F7C-7C1B-4013-A7DF-FCBC220B658B.thumb.jpeg.0b79d7baa8e9ee4a1521c820f4133a10.jpeg

    But a "regular" Clone SID has just 1 Serial in. The confusing thing is that some offer extra inputs for C64 connections (extra "A" ins) which seem to be useless for the MBSID.

     

    So, if a SID Clone offers Stereo sound, and doesn't have a second serial in (which only seems to have the ARMSID 2), than it seems just be possible to double and emulate the second channel by one serial input and that means you have kind of pseudo stereo (which you could also do by mono to stereo the analog output) and also no polyphonic possibility.

     

    (As far as I understand this, no guarantees, pls discuss)

  4. New user with some questions

    in MIDIbox SID

    Posted

    You can use them just as a stereo pair (and polyphonic) or you would need a second core for the other sid. 

    @RioI can't figure out how to save an edited Bass or Drumengine part. If I want to save, not possible. So I thought, Ok, it's because of the engine and I need to choose the ensemble Bank H but this doesn't work either.

  5. SID "Clones" List/Sources/Experiences

    in MIDIbox SID

    Posted

    Oh yes, in the early 2000s I always wondered how I could use a Game Boy or C64 with Midi... I had a Hardsid some weeks but it was not a good feeling to have them in my Computer always getting powered altough I did not used them anytime I just made PC Stuff, so I resold it and used emulation instead.

  7. SID "Clones" List/Sources/Experiences

    in MIDIbox SID

    Posted

    A DSP Synth always behaves the same, it's static and yes, it's possible to emulate the behavior of analog components, too, but analog stuff mostly have some magic, proven or not, true or not.

    Also, analog has no latency. These are ms or us but the sum count. They also react to heat and all this stuff makes analog the analog feeling. 

    But don't get me wrong, I did work and still work a lot with emulations and they are super handy and sound great but      I do understand the analog lovers every day a little bit more.

    I rather emulate a C64 instead of a SID

     

  8. SID "Clones" List/Sources/Experiences

    in MIDIbox SID

    Posted

    Right, it's just my personal opinion, everybody can do what he wants to and DSP SIDs do have their advantages but it turns the MBox SID just into an VA and if you would redesign the Box to a DSP Synth with much more Power you could just emulate the SIDs inside. From the view of engineering it's kind of uneffective to use an 8bit PiC and drive up to 8 32bit emulated 8bit (and some analog stuff) Synthesizer Chips . 

    I will build this LC module next weeks to drive a moog ladder filter http://ucapps.de/mbhp_aout_lc.html and who does'nt know, this one is the best one http://www.midibox.org/dokuwiki/aout_ng

    If you choose to build or buy Filter, watch out that CV to Resonance is implemented, this seems not to be usual. The MFOS supports http://musicfromouterspace.com/index.php?MAINTAB=SYNTHDIY&PROJARG=VCFJAN2006/VCFJAN2006.html&VPW=1356&VPH=787

    The easiest way is to use a Korg MS20 Filter, buy a monotron duo for 50 Bucks and put audio in (no cv) I have one but the MS20 Filter is not very "fancy".

    The problem about those emulated SIDs is, that they have enough power to emulate a good and or "fitting" filter for the SIDs but they are build for C64 Lovers and so they should sound like the real ones, so the FreeSID or KickSID would be the candidates to implement own filter models. Problem is just it's not easy for someone who has no expirience to build one.

     

     

  9. SID "Clones" List/Sources/Experiences

    in MIDIbox SID

    Posted

    On 4/16/2021 at 2:35 PM, dwestbury said:

    I don't know about the rest of you, but for me, the SID Clone wars are over and the clear winner is ARMSID.

    1. The sound is very close to the real deal, in either 6581 and 8580 mode. IMHO, it's even better than the SwinSID Ultimate (listen to examples above in this thread)

    Yes, I would say this too atm.

    I don't agree that a DSP SID is better than a real one but it's handy.

    I've built up my Freesid but there is still just a "prototype alpha" emulation. ADSR Bug, No Filter...so I have to wait for someone coding one.

  12. SID "Clones" List/Sources/Experiences

    in MIDIbox SID

    Posted · Edited by Noise-Generator
    update

    @dwestburyYes, I came across this project, too, these days at https://www.forum64.de/index.php?thread/106775-projektvorstellung-sidkick/&postID=1638424#post1638424 (german) and wanted to post this first here, as a post (as I'm doing it now..)

    ATTENTION: 

    A Teensy 4.1 is a lot bigger (longer) than a SID. However, workarounds may be possible, I can't check the space inside a MB6582, so someone who have should/could care about that.

    This is why the FreeSID is based at Teensy 4.0 because it fits great (like a SID)

    EB049B45-4BA0-426C-A97D-0D8DBB7E9924.jpeg.e4b1eea138f73f32f9c1323c4b2c493c.jpeg

    The difference between the FreeSID and SIDkick is that the Teensy 4.1 has some more DSP-Power (up to 4x SIDs) but how to connect and use the 4 with a MBox SID, I don't know.

    The Emulation of the SIDkick is based at Resid, which is the SID Emulator inside the VICE Emulator.

    The Emulation of the FreeSID is Code by the Inventor Matthias.

    Both Codes are Free (I'm not really sure about Resid, because Matthias said he donˋt want to use Resid because itˋs not Open Source.) Well I'm not exactly informed about that but you can load Code inside both whichever you like but there is not a lot of choice atm if you can't code or modify it by yourself. 

    I couldn't find a picture with a full build but you can see the SIDkick in this Vid inside a C64 with Soundexamples

     

     

    • Like 1

  13. Neues C64 Netzteil funktioniert nicht?

    in Deutsch

    Posted

    Achso, überlesen.

     

    Ja, nein. So sicher bin ich ich mir da auch nicht, wie schon gesagt. Die Störungen im Video kommen wohl eher von dem Schaltnetzteil, und das zuppelt halt und brummt nicht. Aber das Prinzip ist zumindest mal ähnlich. Er erklärt ja auch etwas wie Störungen zustande kommen und das sollte man sich mal anschauen. Er erzählt dann von Tiefpass Filter und Phasenauslöschung und das ist auf jeden Fall Lehrreich um der Lösung des Problems näher zu kommen.

  17. Neues C64 Netzteil funktioniert nicht?

    in Deutsch

    Posted

    Bei mir nicht aber bei Jemanden der Brummen auf der Box hatte, nachdem er den Distortion Mod gemacht hatte. Dann hatte er die Minuskabel um Ferritringe gewickelt. Das einfachste ist sowas, hast du bestimmt auch an irgendeinem Netzteil im Haushalt: https://www.reichelt.de/ferritring-fuer-rundkabel-5mm-ferritring-5-0-p7674.html?search=ferritring

    Wie gesagt ist das nicht soo einfach, weil man ja die Quelle nicht kennt. Was man verstehen muss, jedes Kabel ist mehr oder weniger auch eine Antenne, bzw. wirkt halt wie eine. Hast du schonmal einen C64 geöffnet? Da ist so eine Alupappe drin die an den RF Modulator geklemmt wird und dieser RF Modulator ist eine Metallene Kiste, soetwas nennt man Faradayscher Käfig und dient zur Abschirmung.

    Ich bin ja kein Elektro Profi aber soviel ich weiss kommt ein Brummen zustande durch fehlende Entstörung an der Quelle, also Netzteil und später in der Kette durch Rückwirkung auf das Netzteil oder durch die Einwirkung auf das Audiosignal bzw. den Minuspol durch Störungen. Deswegen schirmt man dann ab.

    Die meisten Audiogeräte haben ein Metallgehäuse, das nicht nur zur Stabilität, sondern auch zur Abschirmung dient.

    Wie ich selbst so etwas Sicher baue, weiss ich nicht. Man könnte halt ausprobieren mit den Möglichkeiten die einem zur Verfügung stehen.

     

  21. Yet another 6582 troubleshooting post...

    in MIDIbox SID

    Posted

    I had similar symptoms with shorted or corrupted DINX and DOUTS, so I would check in this section. Maybe one IC is broken, maybe has no contact...

    My first tip would be reflux/solder but you said, you did that.

    Best way is to check every connection via Multimeter and change ICs. Itˋs no problem to put just one hc74* and left the others out to check if they work.

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