[ddots-l] Re: Scrubbing with Tranzport

Hay Dan!!

Great post!

Regards, Phil Muir
P J Muir Productions
Music And Audio Production
URL:
www.philmuir.com/
----- Original Message ----- 
From: "Dan Rugman" <danrugman@xxxxxxxxxxx>
To: <ddots-l@xxxxxxxxxxxxx>
Sent: Thursday, November 30, 2006 6:46 PM
Subject: [ddots-l] Re: Scrubbing with Tranzport


> Phil, I'm really sorry to be a nit picker but the word amplitude refers only 
> to the maximum 
> displacement of the wave form and not the individual points on the graph.
>
> In purely scientific tirms, the waveform shows either the displacement of the 
> oscilator or the 
> voltage coming from the microphone or to the amplifiers at various points in 
> time.
>
> Mathematically speaking, the waveform shows you values between +1 and -1 and 
> the amplitude 
> multiplies all of these values.
>
> Zero crossing is in fact the point where the oscilator has a displacement of 
> zero or the voltage 
> in the circuitry is zero.  In other words, the oscilator is in the rest 
> position (like a still 
> string on a cello) or there is no voltage in the circuits.
>
> Also, setting the grid to zero crossings will only help you to avoid sudden 
> jumps in the waveform 
> that cause pops and clicks.  The only way to remove sudden changes in the 
> audio quality itself is 
> to crossfade between the material before and after the cut.
>
> Many apolagies for my finnicky snootiness, (that's what a maths degree does 
> to you)
>
> Dan
> ----- Original Message ----- 
> From: "Phil Halton" <philhalt@xxxxxxxxxxx>
> To: <ddots-l@xxxxxxxxxxxxx>
> Sent: Thursday, November 30, 2006 5:03 PM
> Subject: [ddots-l] Re: Scrubbing with Tranzport
>
>
>> Neville,
>>
>> If you are familiar with waveforms and how they look on a graph-for example, 
>> a sine wave, then...
>> the zero crossing is the point where the wave crosses the x axis, or zero 
>> amplitude.  So, zero 
>> crossings occur with every wave-that's alot of times in a given area of 
>> time.  Perhaps thousands 
>> of times in a single frame. And, you don't find them-sonar does that for you 
>> using a setting in 
>> the snap to grid dialog.    As for correcting glyches, I believe that is 
>> exactly what setting 
>> your from and to points at zero crossings will do for you.  But again, you 
>> don't look for them, 
>> sonar finds them(the nearest ones to the from and thru times) when the 
>> checkbox for 
>> zero-crossings in the snap to grid dialog is checked.  Read about these 
>> things in the help 
>> system.
>>
>>
>>
>> Disclaimer: I'm not an audio engineer so my terms might not be correct, but 
>> I believe the basic 
>> premise is.  If I need correcting, please do so.
>>
>> ----- Original Message ----- 
>> From: "neville" <neville@xxxxxxxxxxxxxxxx>
>> To: <ddots-l@xxxxxxxxxxxxx>
>> Sent: Thursday, November 30, 2006 9:01 AM
>> Subject: [ddots-l] Re: Scrubbing with Tranzport
>>
>>
>>> How would one know where to find the zero crossing? Do they occur 
>>> frequently in the wave or are 
>>> they far and few. Can you fix the glitch that happens when you apply 
>>> affects destructively by 
>>> setting your from and through at zero crossings?
>>> thanks
>>> ----- Original Message ----- 
>>> From: "Phil Muir" <ddots@xxxxxxxxxxxx>
>>> To: <ddots-l@xxxxxxxxxxxxx>
>>> Sent: Thursday, November 30, 2006 2:46 AM
>>> Subject: [ddots-l] Re: Scrubbing with Tranzport
>>>
>>>
>>>> It's the point where you can cut into a wave form, at the point of least 
>>>> resistance.  E.G, if 
>>>> you apply edits at 0 crossings, then, you shouldn't get any pops and 
>>>> clicks, because there 
>>>> isn't much happening on the wave form at that point.
>>>>
>>>> Regards, Phil Muir
>>>> P J Muir Productions
>>>> Music And Audio Production
>>>> URL:
>>>> www.philmuir.com/
>>>> ----- Original Message ----- 
>>>> From: "neville" <neville@xxxxxxxxxxxxxxxx>
>>>> To: <ddots-l@xxxxxxxxxxxxx>
>>>> Sent: Thursday, November 30, 2006 2:36 AM
>>>> Subject: [ddots-l] Re: Scrubbing with Tranzport
>>>>
>>>>
>>>>> What are zero crossings?
>>>>> ----- Original Message ----- 
>>>>> From: "Gordon Kent" <dbmusic@xxxxxxxxxxxx>
>>>>> To: <ddots-l@xxxxxxxxxxxxx>
>>>>> Sent: Wednesday, November 29, 2006 11:56 AM
>>>>> Subject: [ddots-l] Re: Scrubbing with Tranzport
>>>>>
>>>>>
>>>>>> It really is as simple as it looks.  I personally never have a problem 
>>>>>> with zero crossings, 
>>>>>> but it depends on how fussy you want to get.
>>>>>> Gord
>>>>>> ----- Original Message ----- 
>>>>>> From: "Phil Halton" <philhalt@xxxxxxxxxxx>
>>>>>> To: "ddots-l" <ddots-l@xxxxxxxxxxxxx>
>>>>>> Sent: Tuesday, November 28, 2006 6:00 PM
>>>>>> Subject: [ddots-l] Scrubbing with Tranzport
>>>>>>
>>>>>>
>>>>>>> I've just installed sonar5.2, CT5.2 & the Tranzport.  Everything is 
>>>>>>> working fine(thanks for 
>>>>>>> asking).  Regarding Scrubbing audio with the Tranzport--is it really as 
>>>>>>> simple as it 
>>>>>>> appears?  I mean, Wow, what a difference.  I can't find anything on 
>>>>>>> scrubbing with a control 
>>>>>>> surface in the documentation, but it seems like all you do is Scrub 
>>>>>>> with the 
>>>>>>> Stop/Play/Wheel, set the F9&F10 points, select the region and edit as 
>>>>>>> you like.  Is that it? 
>>>>>>> Anything else I should know?  How about zero crossings--does that 
>>>>>>> happen automatically when 
>>>>>>> you set the F9&F10 from and thru points?
>>>>>>>
>>>>>>> One other thing-when scrubbing, I get this weird noise over the 
>>>>>>> audio-sounds like space 
>>>>>>> aliens or something.  Should I be getting that? Any suggestions?
>>>>>>>
>>>>>>>
>>>>>>>
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