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DX21 and DX27S chorus effect
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Hi,
The DX21 and DX27s have a very basic Stereo Chorus effect with only one parameter: On/Off. I am looking for someone owning one of these keyboards, who can record a simple single note testtone - for example an INITVOICE with the Chorus switched on - and share a WAV or MP3 with me. I need it to try to find the most accurate speed/depth setting when converting this effect for use in my Reface DX Legacy Project. The V50 that I own myself has much more FX - but no chorus ... BTW: Is the DX21 chorus identical to the DX27S chorus? Can someone tell from the schematics in the service manuals maybe? Thanks for any info and help, -- MT |
开云体育If noone comes through faster, I can record a DX21 in ~8 hours.
On 17/06/2021 12:05, Martin Tarenskeen
wrote:
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I could compare schematics if only DX27S Service manual or schematics is available. Unfortunately it isn’t.
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Daniel Forró On Jun 17, 2021, at 19:05, Martin Tarenskeen <m.tarenskeen@...> wrote: |
开云体育I overlooked your question about the hardware, sorry. DX21 uses a Panasonic MN 3209 as a chorus (256 stages), the
DX27s? a MN 3204 (512 stages). I had done a quick comparison in the past, I couldn't really hear a difference in the chorus. Of course it's a bit difficult, as the DX21 has the chorus on the mono output whereas the DX27s uses the chorus to produce a stereo-effect. Try to get to recording in a few minutes. Cheers, Florian On 17/06/2021 12:21, Florian Heer
wrote:
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开云体育And here is the recording. INIT Voice without chorus and with chorus as well as just one operator without and with chorus. Hope it helps.
Best, Florian
On 17/06/2021 21:07, Florian Heer
wrote:
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On Thu, 17 Jun 2021, Florian Heer wrote:
And here is the recording.Hi Florian, Seems something is wrong with your INIT VOICE? The standard INIT VOICE should be only one operator without modulation. Don't know if it's like that on your DX27S, but it was like that on my DX100, FB01, YS200, and V50. Your INIT VOICE - even without chorus - doesn't sound like a clean sine wave at all. No worry, the second part of your recording fixes this and is completely usable for my purpose. -- MT |
开云体育On 17/06/2021 23:06, Martin Tarenskeen wrote: On Thu, 17 Jun 2021, Florian Heer wrote: I was wondering myself, but I hadn't used the DX21 for a while, so didn't give it another thought. Just wondered why you wanted that sound - for good measure I threw in the other sound Well, turns out the potentiometer on the modulation wheel is a bit scratchy. So the first recording apparently had some modulation from there. I probably moved it while changing parameters - that's how we got an unmodulated signal. I did want to prove that my DX21 does not work like DX27(s)/DX100 (all 3 share the same mainboard), FB01 - which comes from a different division after all, YS200 - which I like most of them all (not only because you can't program it with its own user interface)... Anyways, thanks for the complaint, this way I got to repair that part. One question from my side: the DX100 is powered by an external power brick, right? Do you know if the DX27 is powered like that as well? Just curious, as the DX27s and the DX21 are very different beasts, the DX27s has an old fashioned linear PSU and the DX21 has a switching power supply, although their built largely at the same time. I would have assumed Yamaha would probably try to reuse parts.. Cheers, Florian |
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On 18/06/2021 00:26, Martin Tarenskeen wrote:
On Thu, 17 Jun 2021, Florian Heer wrote:One question from my side: the DX100 is powered by an external power brick, right? Do you know if the DX27 is powered like that as well? Just curious, as the DX27s and the DX21 are very different beasts, the DX27s has an old fashioned linear PSU and the DX21 has a switching power supply, although their built largely at the same time. I would have assumed Yamaha would probably try to reuse parts..It was very long ago that I owned a DX100. But looking my collection of PDF scanned manuals might give an answer. Ah, don't bother. It's fine. |
开云体育This is a different instrument. I can't find Service manual or schematics for DX27S. Daniel Forró
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That's interesting, I wouldn't describe that as a chorus at all, to my ears that's actually tremelo. On Thursday, 17 June 2021, 21:56:31 BST, Florian Heer <yamahadx@...> wrote: And here is the recording. INIT Voice without chorus and with chorus as well as just one operator without and with chorus. Hope it helps.
Best, Florian
On 17/06/2021 21:07, Florian Heer wrote:
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On Fri, 18 Jun 2021, Co Da via groups.io wrote:
That's interesting, I wouldn't describe that as a chorus at all, to my earsMaybe because it's a testttone, only a sinewave? If you look at it in a wave editor you will see a type of irregularity that you will not see with a tremolo effect. -- MT |
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