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Topics - Waxdat

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Alright, folks, the results are in, and they are conclusive. For those of you don't want to read through all of the gory details, the bottom line is this:

To avoid any undesirable de-emphasis on your resamples, just keep the following in mind, and you'll be good to go:

1. When using "Re-sample": turn pre-emphasis and normalization ON.
2. When using "Re-sample Mix" to bounce internal tracks only: apply emphasis afterwords with "Sample Edit"
3. When using "Re-sample Mix" to record track(s) routed out and back in through the input: no emphasis needed.
4. When using "Sample Edit" to fix a sample that was de-emphasized: apply emphasis (not normalization).


Or just use the even shorter list:
1. Use your ears and see if emphasis has changed!

Now, for anyone interested in the gory details:

Re-sample Mix: this de-emphasizes the sample - NOT GOOD
Re-sample Mix (recording a track routed out and back in through the input): sample stays GOOD
Re-sampling with pre-emphasis off: de-emphasizes the sample - NOT GOOD
Re-sampling with pre-emphasis on: sample not de-emphasized, but gain significantly reduced - NOT GOOD
Re-sampling with pre-emphasis and normalization on: sample not de-emphasized or de-amplified - GOOD
Direct Recording analog out - to - analog in: sample not de-emphasized or de-amplified - GOOD
Direct Recording digital out - to - digital in: sample not de-emphasized or de-amplified - GOOD

The direct recording tests (both analog and digital) reveal that pre-emphasis gets applied on the way in, and de-emphasis on the way out. Now I get the behavior of all Roland samplers. It didn't get it until now.

A'Shad wrote:
Some people say the De-emphasis also applies to using the digital I/O as well, I can't say since re-sampling on the MV got real boring real quick.


If by this you meant that the samples were losing their clarity, then I can assure you that this was because you did not have pre-emphasis and normalization turned on. Turn them on and you'll see that the resampled signal does not lose any clarity.

There was another long thread about de-emphasis and distortion after normalizing and pre-emphasizing, but that was due to epmhasis being applied after normalization, which would cause clipping on any sampler, not just the MV. You have to normalize after applying emphasis to avoid distortion.

Sorry for the numerous updates. Keeping samples accurate is critical and I'm trying to keep it simple. The 3 guidelines at the top will keep your samples accurate and should allow you to resample with confidence.

Thank you, and happy resampling



Sent from my iPhone

2
MV-General Production / MV routing possibilities - a NNitred repost
« on: June 23, 2017, 08:52:00 pm »
This tutorial will give some of you a better idea of what your MV is capable of in terms of routing and to show that outboard components are easily integrated with the MV. Most of have FX ,filters,and dynamics units we want to use so here's easy way to pull it off. No MV8-OP1 needed!

These are just the basics in plain talk but once you understand it you could see how pachtbay and a digital mixer could open up killer possibilities.

It's always good to know why something works as well as how. If you know this stuff just skip it. This is in no way a substitute for reading the manual! Anyway ,have fun.


Audio Tracks.

Audio Tracks cannot record to and play at the same time . Furthermore , Audio Tracks do not overdub, they overwrite. This is important because this characteristic means that a signal loop cannot be created-thus no feedback when you do your tracking of treated incoming audio.
*Any channels and/or sounds routed an Indiv.Out or Stereo pair are removed from the MIX output during playback.

Instrument Tracks

Instrument Tracks can be routed the same as Audio Tracks but they have extra Parameter called "Prtl." This setting allocates the routing of the instrument track to the pad level. This is important when you want total control over a patch's routing.

Pad Level Routing

When you hit Quick Edit the upper left area has an area that allows you to route every single pad to any available Ind.Output , Aux, or Stereo Pair . You can also control the send amount for Delay and Reverb for every pad individually. So you could send some sounds to the Mix, some to Aux, some outside of the MV to get mangled. In fact, the combination here are staggering-especially if the MV8-OP1 is installed.
The part's track must be set to "Prtl". In fact you can set up the pad routing to your like and toggle between Mix, multi, or Ind.Out as you need it.

Auxes (subgroups or buses)
Auxes share the same routing options as other channels except they have no EQ, but do have direct MFX access and an OFF setting at output.. The Auxes allow you to create an entire submix and then send it where you want. The Aux channels are the sum of all of the tracks,parts, or pads you route into it so instead working several faders you only have to worry about controlling one.
******************************
Input Channel

The Input Channel is always live. It has the ability to to integrate with the final mix while still maintaining the ability to send to the Reverb and Delay blocks. Digital or Analog, the output destination for the Input Channel is either the sample engine or Mix output depending on functions being performed.


Analog Out

The Analog Out is for the Mix/Master output only. The reason i mention this so that you'll see the stark contrast between the Digital outs and Analog Outs.

Digital Outputs ( SPDIF/Optical.

Most think that this is a duplicate of the Analog Outputs. Well, I'm happy to say that it's anything but. In fact, the only similarity is that the digital out can output the Mix. While that is the factory default setting it certainly isn't the only one! The Digital Output is actually fully assignable to carry any Stereo Pair, any Ind. Out as part of a Stereo Pair , or the Mix output.

* Sounds,Tracks, Auxes routed to any Ind. output or Stereo pair are removed the from the Mix output. This does a great job of stopping signal loops and redundancy that causes cancellation and muddy sound.

** Anything routed 1,2,3,4,5...is sent to either the Left or Right Channel respectively. If you want the sound to appear on both left and right (or using a stereo sample) you must choose 1/2, 3/4 etc. matching the assignment given to the Digital Out.

Using Outboard Processing

Note:

* You do not need the MV8-OP1 to use outboard processors unless you want to stay strictly in the digital domain.The following uses the digital output on the MV but an inexpensive converter is needed to use analog devices. You can also use devices such as DAT,CD Recorder, HD Recorder or any audio device that will convert Digital audio to Analog. The drawback is the adding of noise to the signal chain. This up to you.

** Expensive converters are a waste. Unless you just want to impress someone, a simple direct converter works great.

*** Remember , the MV digital output only carries one stereo pair at a time.1/2 ,3/4 ,5/6 or 7/8
DO NOT USE "MIX" -
The result is unusable phase canceled murky garbage.
DO NOT ROUTE THE "MASTER ANALOG OUT" BACK INTO THE MV! -

If you should need a basic DAC for your analog units, I suggest the Gefen. It's less than $80 and it does the job well. It's cheap because it's a simple in and out conversion with no controls, chassis,meters, or options. Here are the specs and the webpage.
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Specs: * Converts digital audio S/PDIF or TOSLink signals to analog L/R signals
* Integrated digital interpolator filter and digital-to-analog convert (DAC)
* Accepts uncompressed digital audio input
* Samples at 32, 44.1, 48 and 96 KHz
* 2-channel LPCM (Linear Pulse Code Modulation)
* 24-bit S/PDIF incoming bitstream on left and right channels
* Compact and easy to install




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I'll fix my typos and errors by Monday evening. I promise. I'm just rushing to get it all posted.



Sent from my iPhone

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