Need help for figuring out what guitar notes in a song

[mlgnncy666]

windows 8.1 pro / audacity 2.1.3 (.exe)

I want to isolate guitars (which are really downtuned, fast, intricate, lots of pinched harmonics but most of all that have a lot of distortion (technical brutal death metal if you know what I mean))

my questions are:

- what can I do in order to isolate these guitars so I can easily hear accurately notes played in some specific sections of the files (songs) (most parts of whole songs)
- does sample rate and bit depth make a difference in this situation
- TO SUM IT UP ALL I WANT IS TO BE ABLE TO EASILY HEAR SUPER LOW PITCHED AND SUPER DISTORTIONNED AND SUPER FAST CRAZY GUITAR PARTS ENOUGH CLEARLY IN ORDER TO NOTATE MUSIC SHEETS FOR THESE GUITAR

(sorry my english is bad it is not my first language )

here's a link to one of those songs (there are many (all from the same band)):

https://www.youtube.com/watch?v=0YXwhR2COFU

I am new to this forum and would really appreciate just a little help to make this easier to achieve I am newbie in sound programs any advice is more than welcome

Thanks in advance

[kozikowski]

Audacity can't take apart a song into separate voices, instruments or other sounds. That's for a regular song. It's really difficult if the song has pitch shifting and special effects applied.

Koz

[mlgnncy666]

well i've been exploring the program for a couple of hours now and I kinda found what I think I need to figure the notes : plot spectrogram

I have removed vocals and separated stereo tracks to keep only the left track (one of the guitars) and changed it into mono.
I see that in the spectrogram that with some of the different types of graphs you can chose it shows notes (C-C#-B...) but how can I really determine those notes in the song using the graph cause as I move the cursor to the right the notes are simply enumerated in descending order so all I wanna is how can use this graph to see the frequency / note name.

Thanks for your help

[kozikowski]

plot spectrogram

That's two different tools.

Analyze > Plot Spectrum gives a traditional display with volume top to bottom and pitch left to right. Rumble/earthquakes on the left and dog's hearing/bats on the right. You can increase the detail of the display by dragging it bigger and bigger, and changing "Size" to a higher number.

Spectrogram option from the left-hand drop-down menu is slightly different. That one is pitch up and down (bats on top) and time left to right. It's another way to view the timeline.

Neither one will win any awards for your job. Spectrogram will tell you where the notes in the song are, but is sloppy about telling you which notes. Analyze > Plot Spectrum will tell you exactly what the tones are, but not where in the song. If you try to increase Plot Spectrum accuracy, it will complain about not having enough of the song to inspect. Reduce the "Size" setting to allow smaller portions of the song, and the tonal accuracy goes into the mud.

The desperation method is listen to the song and try to play the same notes on your keyboard or guitar. When you hit a match, the sound will be flat and dead. The worst problem with this method is sometimes you can hit an octave up or down by accident. Trying to match instruments that have effects and processing is difficult.

Koz

[mlgnncy666]

first of all thanks for mentionning there is a spectrum with pitch from bottom to top thats one thing I was looking for but aside from what you said about determining (that its hard to figure out notes from music instruments that has a lot of processing and effects) would you any tips on reducing any elements of those instruments which make it hard to decipher accurately what's going (for ex: playback speed, pitch change, eq, etc..) cause I am now at the state of desperation and I plan on seriously listen intensively the song in question to find out whats going so any advice or tip on how to use the program is more than appreciated.

thanks in advance