I call someone a sounddesigner if he/she makes new soundFX based on original recorded sounds - organic or synthesized. (I guess because they think it sounds more flash than re-recording mixer or whatever). I get credited and listed all the time as sounddesigner, mainly because I do everything and the production companies often don't even ask me how I want to appear on the credits. I think Geo explained it very well above. When I work on a short film, its often just me and a Foley team so I do sometimes get credited as "Sound Designer/Re-Recording Mixer" While I do consider myself and my crew sound designers, we actually rarely use that in the credits. When one guy is overseeing the dialogue, he gets dialogue editor added etc, same with shooting ADR or Foley. They get credited usually as "Sound Editor" as to us its an all encompasing "i edited sound on this picture" sort of thing. My guys that work with me edit dialogue, foley, adr, backgrounds, sfx you name it. I oversee the editorial and handle major design moments, the films entire "soundtrack" is my responsibility therefore the SSE title works in those situations. I usually go by Supervising sound editor as work with a small team. I guess it up to the editor and the producer to decide what to call the position based on the work.
![sound editor sound editor](https://www.avs4you.com/static/dd7b40717b56175d67333f626fca9332/412e5/audio_editor_en_header.png)
Am I a sound editor, music editor, sound designer, re-recording engineer, or what? then mix the whole thing in the dub stage. I've been know to take music, edit the crap out of it, create ambience and backgrounds that play into, around, and with the music, then take sound effects and "tune" them to be in key ( or out of key ) to the music and ambience work. I guess its up to the editor and the producer to decide what to call the position based on the work. If i'm the one coming up with all the ideas and pulling the pre-dubs together and it's my sound field, I might call myself a Sound Designer.
![sound editor sound editor](https://s2.glbimg.com/Nt_7bV0caq-RkXXrC051VwAXHEs=/0x600/s.glbimg.com/po/tt2/f/original/2014/09/11/c340e0e7012feb04123139268817.jpeg)
I guess for me, if i'm one of the people building pre-dubs and prepping for a mix by creating pieces of the puzzle. Today, heck I know a lot of people who do all of the above. Then another editor might put all of this together and pass it off to the re-recording engineer and their team to mix. Or they might hire the Production Recordist to provide room tone and other surrounding sounds.
![sound editor sound editor](https://altitudetvm.com/images/multimedia/download-wavepad-audio-editor-949_2.png)
Then another sound editor might create effects and background sound. Add in a music editor to cleanup and re-edit the music for the project. Perhaps a Foley walker to perform the Foley while a Foley Recordist records the Foley. Once upon a time you might hire a Dialogue editor to edit dialogue recorded on set and the an ADR recordist to record ADR, followed by the ADR editor or maybe the dialogue editor editing the dialogue. In fact, definitions and roles in sound are just getting more and more blurry, especially in post.
![sound editor sound editor](https://pt.all10soft.com/images/upload/1/5/wavepad-sound-editor-windows-10-screenshot.jpg)
I truly, find it difficult to define either as separate. If you pinned me to a wall for a difference, I might suggest a Sound Designer is someone who creates the overall sound scape for a project, where a sound editor is someone who simply created or manipulates various parts of a sound field. on a lot of projects they are, in fact, the same person. IMHO: A sound editor can be a sound designer, and a sound designer can be an editor.