Reply to this topicStart new topic
> Audacity Question
Old School Rocke...
post May 23 2008, 04:20 PM
Post #1


GMC:er
*

Group: Members
Posts: 137
Joined: 11-February 08
From: Burnaby, BC
Member No.: 4.208



Ok forgive my beginner-ness (I cant figure out a better word right now but anyway rolleyes.gif ) I was using Audacity and I was wondering, I've heard when using Audacity you can remove vocals and other parts of a song.

So right now im just playing the 2nd Solo for the song "Angel" By Aerosmith over and over and over and over again smile.gif and now I would like to remove vocals (if you can even do that huh.gif ) So if anyone has any knowledge of this I would appreciate it if you could help me out.
Go to the top of the page
 
+Quote Post
Saoirse O'Shea
post May 23 2008, 05:11 PM
Post #2


Moderator - low level high stakes
Group Icon

Group: GMC Senior
Posts: 6.173
Joined: 27-June 07
From: Espania - Cadiz province
Member No.: 2.194



There are quite a few bits of hardware (ie Karaoke) and software that claim they can remove vocals from a stereo mix - including Audacity. From what I've seen none of them are 100%.

Vocals tend to be mixed centre and usually with a bit more gain then the instruments, guitar is usually panned off centre. What you are effectively doing in vocal cancelling is wiping out the centre channel - and that means anything that is there: vocals, drums, anything, and rendering back to a much attenuated mono signal. To recover the other 'lost' information means you have to make another pass through and apply suitable low band pass filtering to bring those particular frequency ranges back into the mix. (It's usually low as it tends to be kick drums and bass frequencies that are most evident in the centre channel.)

Centre channel sort of works then because the left and right channels are pretty much identical. (Rarely totally identical though as usually reverb, or some other buss type effect is added in different amounts to left and right channel.) Inverting one will cancel (most of) the other. Instruments off centre though don't give identical left and right channel waveform images. Inversion here won't result in full cut and may end up as a messy compromise.

Anyway if you don't want to try phase inversion using Audacity othen you probably need to use the Invert Effect. I've never tried to do this with Audacity so I can't give you the specifics and don't know how effective it will be play with it - you never know.

Cheers,
Tony


--------------------
Get your music professionally mastered by anl AES registered Mastering Engineer. Contact me for Audio Mastering Services and Advice and visit our website www.miromastering.com

Be friends on facebook with us here.

We use professional, mastering grade hardware in our mastering studo. Our hardware includes:
Cranesong Avocet II Monitor Controller, Dangerous Music Liasion Insert Hardware Router, ATC SCM Pro Monitors, Lavry Black DA11, Prism Orpheus ADC/DAC, Gyratec Gyraf XIV Parallel Passive Mastering EQ, Great River MAQ 2NV Mastering EQ, Kush Clariphonic Parallel EQ Shelf, Maselec MLA-2 Mastering Compressor, API 2500 Mastering Compressor, Eventide Eclipse Reverb/Echo.
Go to the top of the page
 
+Quote Post
Old School Rocke...
post May 23 2008, 05:19 PM
Post #3


GMC:er
*

Group: Members
Posts: 137
Joined: 11-February 08
From: Burnaby, BC
Member No.: 4.208



Thank for the help Tony but all that you wrote is like chinese to me tongue.gif but it no big deal anyway il just have to leave it as is and just loop it but thanks for the help anyway.
Go to the top of the page
 
+Quote Post
Bogdan Radovic
post May 23 2008, 06:23 PM
Post #4


Bass & Beginner Instructor
Group Icon

Group: GMC Instructor
Posts: 15.612
Joined: 30-November 07
From: Belgrade, Serbia
Member No.: 3.410



Well in other words don't bother doing it because it can't be done properly smile.gif


--------------------
For GMC support please email support (at) guitarmasterclass.net
Check out my lessons and my instructor board.
Check out my beginner guitar lessons course! ; Take a bass course now!
My solo and band songs : Keep Going On, Night Vibe, Kad Te Vidim, Susret, Plava Silueta
Go to the top of the page
 
+Quote Post

Reply to this topicStart new topic
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:

 


RSS Lo-Fi Version Time is now: 26th March 2017 - 12:03 PM