Emax

sp1200 has fx and analog filters per voice and a bigger sample memory and an 
internal floppy drive ds/dd drive

----- Original Message ----- 
From: "Matt" <somatt@...>
To: <emax@yahoogroups.com>
Sent: Friday, February 17, 2012 5:02 PM
Subject: Re: [emax] Re: How can I dither samples to 12 bit for EMAX?


> Thanks! Sp-12 and 1200 are similar aside from what you mentioned?
> On Feb 17, 2012 9:00 AM, "jammie" <jammie.emma@...> wrote:
>
>> **
>>
>>
>> the sp12 uses descrete 12bit dacs and all the voice is discrete parts 
>> like
>> the EII
>>
>> the emax uses the s chip which use the compresion system like the EII and
>> also its in charge of memory thats why its fixed to 512k as thats all it
>> can
>> address
>>
>> the sp12 has 8 slots for samples so 8 samples can be used at 1 time but
>> you
>> can also use the internal sample rom so if you want to sample longer
>> samples
>> and just use 2 pads you can that way
>>
>> the sp12 just sounds so nice but it only has 2 ssm2044 filters on 2 drum
>> tracks unlike the emax which has 8 filters
>>
>> the input adc and outputdacs are nothing special just the run of the mill
>> that was available at the time
>>
>> the timing is much tighter than the emax for drums
>>
>> but you have to save sounds on 5 !/4 inch floppies to a commodore floppy
>> drive
>>
>> or you can save the samples to tape which takes about the same time as
>> floppy any way
>>
>> the sp12 is very digital 12bit harsh for 6 of the outputs the other 2 are
>> filtered by the ssm chips
>>
>> but for drums the sp12 turbo is better sounding than the sp1200
>> ----- Original Message -----
>> From: "Matt" <somatt@...>
>> To: <emax@yahoogroups.com>
>> Sent: Friday, February 17, 2012 4:32 PM
>> Subject: Re: [emax] Re: How can I dither samples to 12 bit for EMAX?
>>
>> >I had no idea of this. Can you elaborate on other differences between 
>> >the
>> > emax and the sp-12/1200?
>> > Thanks
>> > Matt
>> > On Feb 16, 2012 2:49 PM, "esynthesist" <esynthesist@...> wrote:
>> >
>> >> **
>> >>
>> >>
>> >> Yes I'm on this group ;)
>> >>
>> >> Actually the codec is converting 16 bit directly into the 8 bit data 
>> >> as
>> >> required by the Emax. The 8 bit audio data in the Emax is a non-linear
>> >> conversion of the original higher resolution audio data.
>> >> It uses a smart conversion algorithm (belonging to the u-law family as
>> >> used in analog telephony. It tries to make the 8 bit audio data sound
>> >> like
>> >> "12-bit quality" instead of just linear "8-bit quality" as can be 
>> >> found
>> >> in
>> >> cheap samplers like the Ensoniq Mirage.
>> >>
>> >> This compression algorithm is also applied within the Emax itself and 
>> >> by
>> >> the Emax-II when it compresses/saves the bank into 8-bit. The same
>> >> principle (but different algorithms) are also applied in the 
>> >> Emulator-II
>> >> and the Emulator-I.
>> >> The algorithm has been chosen by E-Mu in such a way that it gives the
>> >> best
>> >> results for the most common musical sounds.
>> >> But the algorithm is weak when applied to some specific sounds,
>> >> especially
>> >> percussion sounds.
>> >> You get similar problems when you sample such sounds on the Emax 
>> >> itself,
>> >> although I have to admit that from time to time they sound somewhat
>> >> better
>> >> than the software conversion versions generated by Emax-II or EMXP.
>> >>
>> >> E-Mu must have been very aware of the weakness of their compression
>> >> technique for percussion sounds, because the SP-12/1200 drum computers
>> >> are
>> >> NOT using 8-bit compression on their sampled sounds. The drum 
>> >> computers
>> >> store their samples in 12 bit resolution, which means sampling time 
>> >> was
>> >> sacrificed in favour of sound quality.
>> >> Which is a good choice, because percussion sounds are incredible on 
>> >> the
>> >> SP-12 !
>> >>
>> >> ///E-Synthesist
>> >>
>> >> --- In emax@yahoogroups.com, Nik Kinloch <nikkinloch@...> wrote:
>> >> >
>> >> > The EMXP manual says:
>> >> >
>> >> > "Resolution conversion: the bit depth of the sound data may be
>> >> > converted, e.g. from 16 bit to 12 bit. However, with the current
>> >> > sampler
>> >> > formats supported, this conversion only takes place when converting 
>> >> > to
>> >> > Emulator-II and Emax-I. In these conversions a special codec is 
>> >> > being
>> >> > used since the resolution conversion is not linear."
>> >> >
>> >> > So it sounds like some conversion is happening, but from our
>> experience
>> >> > it is not optimal. Perhaps someone can ask Kris Van de Cappelle (is 
>> >> > he
>> >> > on this group?) about this? Maybe it just needs a tweak. I hear the
>> >> > aliasing as well esp on low frequency sounds with a tail (for 
>> >> > example,
>> >> > long bass drums).
>> >> >
>> >> > izotope Ozone apparently can dither to 12 bits then save to 16 bit
>> file
>> >> > (last 4 bits are zeros), this would seem ideal. Anyone tried it?
>> >> > http://www.izotope.com/support/help/ozone/pages/modules_dithering.htm
>> >> >
>> >> > Nik
>> >> >
>> >> >
>> >> >
>> >> >
>> >> >
>> >> > On 16/02/2012 15:34, zrennaya wrote:
>> >> > >
>> >> > > Hi!
>> >> > >
>> >> > > Thanks for your input! I gave up on the 12 bit render thing as you
>> >> mentioned there's no tool that converts to 12 bits.
>> >> > >
>> >> > > On the other hand I experimented with some dithering types and I
>> >> actually managed to reach the quality of factory samples in terms of
>> >> noise
>> >> and aliasing (using the L1). So far I couldn't get that quality from 
>> >> the
>> >> emax ADC inputs!
>> >> >
>> >>
>> >>
>> >>
>> >
>> >
>> > [Non-text portions of this message have been removed]
>> >
>> >
>> >
>> > ------------------------------------
>> >
>> > Emax and Emax II User's Group Website
>> >
>> > http://www.silveriafamily.comYahoo! Groups Links
>> >
>> >
>> >
>>
>>
>>
>
>
> [Non-text portions of this message have been removed]
>
>
>
> ------------------------------------
>
> Emax and Emax II User's Group Website
>
> http://www.silveriafamily.comYahoo! Groups Links
>
>
>