View source for Snd:Editing Soundfiles

= Editing soundfiles with SND =

To edit soundfiles using SND, good advice is to use 'emacs-like' keyboard combinations (see below), and then try them on a SND listener window. To make things easier start with a short (3 secs) mono (one-channel) soundfile. 


:: '''c-x''' means control-x or the keyboard combination ''<ctrl>-<x>''  
::  '''M-x'''  means meta-x and at CCRMA is the keyboard combination ''<esc>-<x>''


If you have a soundfile in the active window try the following combinations and watch the cursor in the displayed soundfile active window. If you don't have a soundfile you can use the open command in the file pull-down menu of SND.

== Keybindings ==

{|
|''c-a:'' || 
| move cursor to window start
|- 
| ''c-e:'' ||
| move cursor to window end
|-
| ''c-v:'' ||
| move cursor to mid-window
|-
| ''c-l:'' ||
| position window so cursor is in the middle
|-
| ''c-f:'' ||
| move cursor ahead one sample
|-
|'' c-b:''  ||
| move cursor back one sample
|-     
| ''c-q:'' ||
| play current channel starting at cursor
|-
| ''c-t:'' ||
| stop playing
|-
|-      
| ''c-[Space]:''  ||
| start selection definition
|-
|-
| ''c-m:'' ||
| place (or remove) mark at cursor location
|-
| c-j: ||
| goto mark
|-      
| ''c-w:'' ||
| delete (cut) current region
|-
| ''M-w:'' ||
| (copy) current region
|-
| ''c-y:'' ||
| paste in last deleted region
|-      
| ''c-_:'' ||
| undo
|-
|'' c-x c-s:'' ||
| save your current edition.
|-
|}

== Playing a Soundfile ==
* To play a sound file from a place other than the beginning:
** Activate sync or sync/unite modes in the lower right check-boxes 
** Create a synchronize marker by: 

<pre>
 '''c-s-M''' (control-shift capital M)
</pre>

You should you get markers for all the channels. 

** To play from that location just click on the triangle in any of the markers. 
** Playback should start. 
** You can also move this markers and even 'rock the reels' by dragging the mouse. 

* More complex operations:

** Move forward or backward in the soundfile using the following combinations:

<pre>
      c-a            ;;; move cursosr to the beginning
      c-u 0.4 c-f    ;;; move cursor forward 0.4 seconds
      c-e            ;;; move cursor to the end
      c-u 1.12 c-b   ;;; nove cursor backwards 1.12 seconds
      c-[Space]      ;;; start selection definition
      c-e            ;;; a selection of 1.12 seconds
</pre>

'''Note:''' These combinations and more can be viewed on the online Help menu at the overview command at the right side of the '''SND''' active window.