Disklavier

Greetings JORGE,

are you trying to make an offset between piano and non piano events so that the DKV delay of the piano parts will line up with the other parts? if so, would it help to delay the non piano parts in the MIDI file to match? that can be done with select by filter and shift in Cakewalk or i could add it as an option to my midimod2 program. the code is pretty much in there just would need to add some gui stuff.

Wednesday, June 25, 2008, 9:48:35 AM, you wrote:
> As far as I understand, the delay of the hammers cannot be disabled it is "physical".
>  
> You may be able however to disable the MIDI OUT delay of the THRU
> MODE, but I can´t see why someone will need to do this.

> 2008/6/25 Matthew Teeter <mrmuk7@...>:
> There is an obscure option to disable the 500ms delay that the
> disklavier includes by default to account for the delay in the
> hammers.  I cant remember where it is since I don't have a
> disklavier handy, but it was accessible through the PRC.

> On Wed, Jun 25, 2008 at 5:31 AM, JORGE FERNANDEZ <jorgefedez@...> wrote:
> Kevin: Let see if I can explain myself.
>  
> It is not clear to me wich is the latency problem, but try to use
> first MIDI OUT from the PC to the DKV and then Midi out from the 
> DKV to the PC (or any)  Midi IN (Thru mode) in this case the latency
> of the DKV (500 ms, half a second) will be handled by the DKV midi
> module before sending anyting to the Midi out port.

> 2008/6/24 Kevin Goroway <kgoroway@...>: 

> Answering my own question, but I suppose the information should be
> here just in case anyone ever searches and finds this...

> It works just fine.  Connected the computer to the piano and it
> detected it fine.  It wanted drivers.  RTMF.  It says so right in
> the Disklavier manual.  They are available on yamaha's site, and work perfectly.

> In my case, it didn't help the latency at all, but I'm fairly
> certain it's due to ancient hardware otherwise.  The new computer
> (and slick soundcard) should be here in about a week, so I'll just
> have to use the piano's voices for now.  

> -Kevin

> ----- Original Message ----
> From: Kevin Goroway <kgoroway@yahoo.com>
> To: disklavier@yahoogroups.com
> Sent: Tuesday, June 24, 2008 1:03:31 PM
> Subject: Re: [disklavier] MarkIV MIDI via USB?

> Okay, but the question still remains...Does it work?  Do you need
> drivers on the pc to see the disklavier as a MIDI device?

> Also, although there's TONS more bandwidth available to USB, the
> question remains unanswered as to the latency to get through the USB
> stack on the PC...modern audio cards have latencies in the 2 ms
> range....can USB compete?  I dunno.

> Anyway, the point is somewhat moot (although I'm still interested
> in the answer) since I went and ordered an e-mu 0404 card for the new computer.

> Thanks.
> -Kevin

> ----- Original Message ----
> From: Mark Fontana <mfontana@frontierne t.net>
> To: disklavier@yahoogro ups.com
> Sent: Tuesday, June 24, 2008 12:06:07 PM
> Subject: Re: [disklavier] MarkIV MIDI via USB?



> While the TO HOST cable is a tried-and-true solution, connecting to a
> Mark IV via USB should offer considerably lower latency and improved
> timing accuracy.

> This is due, in part, to the bandwidth available:

> MIDI wireline connection: 31250 bits per second
> Serial TO HOST connection: 38400 bits per second
> USB 1.1 connection: 12,000,000 bits per second
> USB 2.0 connection: 480,000,000 bits per second

> Even with the slight protocol overhead of USB, the volume of data
> transmitted is about the same, so the benefit of the extra bandwidth is
> huge. I have not seen any USB MIDI interfaces that actually connect at
> USB 2.0 high-speed rates, though. Most support only USB 1.1, probably
> for backwards compatibility with older computers. USB 1.1's bandwidth
> is still enormous for this application.

> Mark Fontana

> On Tue, 24 Jun 2008, JORGE FERNANDEZ wrote:

>> it seems to me that the best aproach would be an standard rs-232
>> serial port and cable connected "TO host" port in the DKV (I assume
>> this one extists in the DKV mark IV)

>> This serial connection worked fine for me many years...






> -- 
> Saludos
> Jorge Fernández
> | ''' 
> | | (0 0)
> |___,,,^..^,,,__/----oOO---(_)---OOo--- 



















































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