[ddots-l] Re: Scrubbing with Tranzport
- From: "Phil Muir" <ddots@xxxxxxxxxxxx>
- To: <ddots-l@xxxxxxxxxxxxx>
- Date: Thu, 30 Nov 2006 22:34:23 -0000
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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