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Converting wav files to Emax samples using EMXP   Message List  
Reply | Forward Message #5539 of 6308 |
Re: [emax] Re: Converting wav files to Emax samples using EMXP

drum samples sound better at lower sample rates any way as they dont contain the
whole frequency spectrum

thats why hiphop producers prefer the 12bit sample sound and the emax is
converted to 12bit so you get 4bits of data diference that means more stepping
but it adds to the quality hence why people still buy the sp1200 which is an
emax engine
----- Original Message -----
From: bermudaben2006
To: emax@yahoogroups.com
Sent: Sunday, July 12, 2009 10:04 AM
Subject: [emax] Re: Converting wav files to Emax samples using EMXP





Well, if you could take samples with Emax at both 42 and 44 KHz you probably
wouldn't hear any difference. But converting 44.1 Khz samples is another thing,
because any samle rate conversion results in a degradation of quality.

I did some testing yesterday with drum samples that I either played back and
sampled at 42 Khz or converted from 44 Khz to 42 Khz using EMXP, and the
difference was quite radical! For example, the 909 bass drum sample I converted
was quite distorted (the original is normalized at -0.3 dB). On the other hand,
when I sampled it manually it sounded really good. Also, converting hi hat
samples with EMXP added a lot of low frequencies that are not present in the
original. Again, manually sampling them gave better results.

Do you know if the .wav files I want to convert with EMXP should have some
headroom for better results?

--- In emax@yahoogroups.com, "esynthesist" <esynthesist@...> wrote:
>
> In fact EMXP never allows samplerates higher than 41667 Hz for Emax-1.
> I wanted to be sure that the banks would be compatible with all Emax-1
samplers.
>
> The maximum samplerate at which Emax-1 can sample is 41667 Hz (Emax-II even
only 39 kHz)
> As far as I know the option to change the samplerate to 44100 Hz on Emax (in
the Digital Effects section) was only added for SE versions. I only have an SE
and Plus version (which both support playback at 44100 Hz), so I couldn't test
if non-SE versions are also able to playback samples at 44100 Hz.
>
> If someone can confirm that ALL emax-1 samplers support playback at 44.1
kHz, I might change EMXP. If not all Emax samplers are compatible, I could still
add the 44100 Hz option in EMXP "on user's risk" :-)
> But... does anyone hear the difference between 41.7 and 44.1 kHz samples on
the Emax ??
>
> ///E-Synthesist
>
> --- In emax@yahoogroups.com, "jammie" <jammie.emma@> wrote:
> >
> > it might be that to get all samples to fit in the emaxs memory that a bit
of sample rate is lowered
> > ----- Original Message -----
> > From: bermudaben2006
> > To: emax@yahoogroups.com
> > Sent: Saturday, July 11, 2009 2:46 PM
> > Subject: [emax] Converting wav files to Emax samples using EMXP
> >
> >
> >
> >
> >
> > This is a question for esynthesist or anyone who uses his software:
> >
> > Why does EMXP convert my 44.1 KHz wav files to 41.7 Khz Emax samples,
given that Emax supports sample rates of up to 44.1 Khz?
> >
> > Thanks,
> > Ben
> >
> >
> >
> >
> >
> >
> > ----------------------------------------------------------
> >
> >
> >
> > No virus found in this incoming message.
> > Checked by AVG - www.avg.com
> > Version: 8.5.387 / Virus Database: 270.13.10/2231 - Release Date: 07/11/09
05:57:00
> >
> >
> > [Non-text portions of this message have been removed]
> >
>






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Checked by AVG - www.avg.com
Version: 8.5.387 / Virus Database: 270.13.11/2232 - Release Date: 07/11/09
17:56:00


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Sun Jul 12, 2009 9:56 am

jammie.emma
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Message #5539 of 6308 |
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This is a question for esynthesist or anyone who uses his software: Why does EMXP convert my 44.1 KHz wav files to 41.7 Khz Emax samples, given that Emax...
bermudaben2006
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Jul 11, 2009
1:46 pm

it might be that to get all samples to fit in the emaxs memory that a bit of sample rate is lowered ... From: bermudaben2006 To: emax@yahoogroups.com Sent:...
jammie
jammie.emma
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Jul 11, 2009
8:56 pm

In fact EMXP never allows samplerates higher than 41667 Hz for Emax-1. I wanted to be sure that the banks would be compatible with all Emax-1 samplers. The...
esynthesist
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Jul 11, 2009
9:27 pm

Well, if you could take samples with Emax at both 42 and 44 KHz you probably wouldn't hear any difference. But converting 44.1 Khz samples is another thing,...
bermudaben2006
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Jul 12, 2009
9:04 am

Update: I have checked the Emax 8 bit compression algorithm in EMXP and applied some changes - there was indeed something wrong in the algorithm. It should be...
esynthesist
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Aug 13, 2009
7:22 pm

drum samples sound better at lower sample rates any way as they dont contain the whole frequency spectrum thats why hiphop producers prefer the 12bit sample...
jammie
jammie.emma
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Jul 12, 2009
9:59 am

I did some tests myself today. The lower quality of the Emax samples is not caused by the lower samplerate, but by the 12-to-8 bit compression algorithm. If...
esynthesist
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Jul 12, 2009
7:43 pm

The answer is very simple... Algoritms. Emu software is meant to work with Emu hardware. Is like when you buy an iPod or any other music device, if you use...
Rei
vjrei
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Jul 13, 2009
4:18 am

another significat factor is the AD 12 bit conversor sometimes you get better results sampling a sound directly to emax's sample input using a decent preamp....
Chip
xtr909x
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Jul 13, 2009
6:13 am

I did some more testing with EMXP... The answer to my problem with distortion really has to do with headroom, not with the conversion algorithm or with Emax's...
bermudaben2006
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Jul 13, 2009
10:42 am

This could be true. The conversion algorithm is quite sensitive to the level of the sound amplitude. When I designed it I thought I had made sure that even the...
esynthesist
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Jul 13, 2009
8:54 pm

the best way to get a good quality sound into the emax is through midi sample dump i use dissidants sample wrench as it works with all the old samplers ... ...
jammie
jammie.emma
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Jul 13, 2009
4:51 pm

so from what i'm reading, EMXP isn't going to give us the best sound quality? i've never had any distortion problems using it myself, but i've never done...
Brooks Mosher
brooksmosher
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Jul 13, 2009
4:56 pm

Has anyone ever compared the sound quality of EMXP and midi dump? As I said earlier, I think sound quality of files converted with EMXP is perfectly ok if you...
bermudaben2006
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Jul 13, 2009
9:24 pm

I just made some comparisons based on your bass drum WAV files. In a first test I have sent the 0DB and -4DB WAV file via MIDI DUMP to the Emax, using Alchemy...
esynthesist
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Jul 15, 2009
9:15 pm

in sample dump you have to dump 1 sample at a time it takes the sample 16 bits and transmits it at 12 bits i find the 27khz sample rate to be good for drum...
jammie
jammie.emma
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Jul 13, 2009
5:03 pm

Sample dumps over the RS422 port is my preferred method. ________________________________ From: jammie <jammie.emma@...> To: emax@yahoogroups.com ...
Elk Latham
elk_latham...
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Jul 13, 2009
5:28 pm

thats only good if you have the old mac setup not good for pc and i like to make up my own samples and not use other peoples sd2 bank files ... From: Elk...
jammie
jammie.emma
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Jul 13, 2009
6:56 pm

Your right about not being good for PC users. If you’re an Alchemy user on a mac you’re not limited to using sd2 files. I make all my samples as well.. ...
Elk Latham
elk_latham...
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Jul 13, 2009
7:09 pm

just curious, is RS422 better than MIDI for transferring sample files? ... [Non-text portions of this message have been removed]...
Brooks Mosher
brooksmosher
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Jul 13, 2009
7:14 pm

not better just faster a lot faster but not as fast as scsi but the emax does not respond to smdi any way so rs port is the fastes ... From: "Brooks Mosher"...
jammie
jammie.emma
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Jul 13, 2009
7:21 pm

There's also a certain stability to it like SCSI..   ________________________________ From: jammie <jammie.emma@...> To: emax@yahoogroups.com ...
Elk Latham
elk_latham...
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Jul 13, 2009
7:35 pm
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