Hi Martin,
This is a common problem when recording D.I. along with mic signals. You can 
certainly try to delay the D.I. track by roughly one millisecond per foot that 
the mic is away from the cabinet. There are tools like Auto Align from Sound 
radix that does the alignment for you but I have yet to use it independently. 
It certainly works well but I have to figure out how to get VoiceOver to play 
nice.
Slau

> On Jul 3, 2017, at 5:33 AM, Martin (Punky) Sopart <[email protected]> wrote:
> 
> Hi Slau!
> 
> Thank you for the files.
> 
> My current "problem" is that I realized phase issues when listening back to 
> guitar recordings.
> One track recorded via mic and another via di.
> 
> When now phase shifting one of those tracks the low frequencies are 
> represented much better.
> 
> So I'm thinking about if this is the normal physic - the mic signal takes 
> longer to be recorded than than the di signal.
> Or is one of the stages between my guitar and the track in pro tools phase 
> shifted.
> 
> Guitar pre amp out, cable from guitar into the di, the di, the xlr cable into 
> the patchbay, the patchbay, the xlr cable into the soundcard.
> Or maybe a stage on the mic side...
> Or both? :-)
> 
> For sorting this out I was searching for some tools.
> 
> Talking to sighted people they zoom into the desired tracks by 100 % and 
> compare the waveforms.
> So they can see if the shifting is 90 degrees or something else.
> Then they move the two tracks exactly that way, that their waveforms are 
> congruent.
> 
> Using the phase shifting tool in e.g. the 7 band eq always shifts by 90 
> degrees.
> Better than nothing but maybe to much.
> 
> I hope that you could understand my thoughts.
> 
> Best! / Martin
>> -----Original Message-----
>> From: [email protected] [mailto:[email protected]]
>> On Behalf Of Slau Halatyn
>> Sent: Sunday, July 2, 2017 8:41 PM
>> To: [email protected]
>> Subject: Re: Cable- signaltest
>> 
>> While it's certainly a good idea to be able to recognize phase issues while 
>> in
>> front of monitor speakers, it's sometimes necessary to verify phase from
>> across the room while possibly adjusting things like cables, speaker wire, 
>> etc.
>> In those cases, it's handy to have files that will play back left channel 
>> versus
>> right channel, both in phase and out of phase. When I lived in London, I met
>> Alan Parsons at an APRS show and he gave me a CD he and a colleague
>> produced called "Soundcheck." While the files are obviously 16-bit, they're
>> nevertheless handy as utilities. There are 99 tracks on the disc including a
>> bunch of music files. I've taken the first 59 files and thrown them into a
>> folder. Grab it here:
>> https://www.dropbox.com/s/weiz6cfwmdduga0/Soundcheck%20reference
>> %20tones.zip?dl=1
>> <https://www.dropbox.com/s/weiz6cfwmdduga0/Soundcheck reference
>> tones.zip?dl=1>
>> 
>> I'll keep it up there for a week or so.
>> Slau
>> 
>> 
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