Of course there is an ultra sonic signal in the audio
file; it's the MIDI data. From the box on the MarkIIXG, you only take one
cable into the speaker from the L mono output.
There is a diffence between MIDI data output and that from
a turntable. The turntable is audio output. You plug it into your
stereo amplifier and it comes out great through the speakers.
MIDI data is data; not an audio file. You need a
tone generator to hear any sounds - and there can be any number of them
reproducint the MIDI data. The same data can be trumpets, strings, chorus,
etc. It is what is produced through the tone generator that comes out the
speakers for the Ensemble sounds.
The MIDI data on Channel 1 and 2 play the keys on the
piano, but that data can also be simultaneously output through the tone
generator as a tone generated piano sound. I believe the setting on the
Disklavier is keyboard out.
You need a lot of power to hear MIDI data. I have
been playing with the MIDI data from my piano and converting it with Virtual
Instruments through Apple's Logic Studio and now Pro Tools 8LE with my
MBox2. I am amazed how good the Native Instruments Akoustic piano sounds
through the MBox2 versus the soundcard on the iMac.
The MarkIIXG has a daughter board inside that is the tone
generator (the DB50?). Converting MIDI to digital audio takes lots of
computing power, and the results are proportional to what is costs to set it
up. To hear an expample, take one of your Disklavier files with Ensemble
sounds into your computer and listen to it. On my PC desktop, the sound
was so unbearably awful I went on a 3 year quest to improve it!
The minimun good powered speakers I have heard on these
things start at $150 per speaker, but the $300 ones sound a lot better. (The
$1000 per pair sound even better but they will never be a part of this
household!)
Carol Beigel
-- Original Message -----
From: Frank & Gean EvansSent: Tuesday, January 12, 2010 12:15 PMSubject: Re: [disklavier] Re: External Speakers for MX100IIXGHi,Sounds like there may be a ultra sonic or DC signal riding on the audio line. A vary low audio signal by it's self should not trip the overload. Are there 2 outputs on the XG (r & l) or just one.RegardsFrank----- Original Message -----From: kenmortgagesSent: Tuesday, January 12, 2010 4:14 AMSubject: [disklavier] Re: External Speakers for MX100IIXG
--- In disklavier@yahoogroups.com, "Frank & Gean Evans" wrote:
>
> Just one more suggestion... Have you tried to connect the XG output direct into the "Aux" input on the sound system without the preamp?
> It sounds like your signal level is high enough with out a preamp.
> Just a thought.
> Regards
> Frank
Thanks Frank
Tried that some time ago. Very faint signal that kicked the overload when I tried to nurture it higher. On a positive note, Yamaha Australia have contacted me again in an effort to find a solution. Sell me a MkIV?
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