From CCRMA Wiki
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.
|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-[Space]:||start selection definition|
|c-m:||place (or remove) mark at cursor location|
|c-w:||delete (cut) current region|
|M-w:||(copy) current region|
|c-y:||paste in last deleted region|
|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:
'''c-s-M''' (control-shift capital M)
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:
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
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.