Using my site's app search by permission to check for voice recorders having the GET_ACCOUNTS permission required to figure your Dropbox account (but could also be used for other cloud services), I could find 7 possible candidates I've checked a little closer:
According to its description, Voice Recorder - Dictaphone fits your needs:
Manual and ...
There is a IFTTT Recipe for this. You can pre-select a folder that whenever a file is a New file in that folder, It uploads it to dropbox.
here is the recipe
Drobox automator also lets you do the same thing by adding a pre-select folder to sync with Dropbox. So you can add the folder where your voice recordings are getting stored be it on the SD Card or ...
You need What did I say?:
works on Windows: yes, requires .NET 4.5
constantly records the last X minutes of audio: yes, configurable time span
in the background: once configured, the window disappears and changes into a notification icon
being inputted into the microphone: the source can be selected if there are multiple
whenever my PC is on: not ...
Cogi-Notes and Voice Recorder
Cogi is an easy-to-use, free and ad-free note taking and voice
recording app that allows you to capture only the important parts of
meetings, lectures and conversations – all while remaining completing
engaged, listening to what’s being said.
Cogi puts you in control, letting you record only the “aha moments”
create announcement file (wave S16LE, 8ksps); it must be as long as the longest call voicemail should record as call would be disconnected when file would end, thus it should consist of few seconds of prompt, period of silence and perhaps warning at the end that call is about to be terminated
configure softphone to register to your provider, enable ...
I would suggest using MoviePy and a variation of this 30 lines of code which does the reverse for video files, (detecting high levels of sound to extract and splice video files to get the highlights of football/soccer matches).
The changes necessary would be to:
use AudioFileClip rather than VideoFileClip.
Look for pauses, (lows), rather than peaks in the ...
i can't guarantee that it works with your phone but i guess your best chances would be with Call Recorder from axet.
it has several cool features:
you can choose the source for recording (Auto, System Default, System RAW, Voice Line or Mic), since the audio-streams are handled different from phone to phone. - if it seems to not work, simply try & error....
From what I can see the app Recordense Voice Recorder meets all of your requirements (except battery usage which I don't know, but with the screen off I doubt it will suck much battery.)
Even let's you add tags from the lock screen notification directly.
Has a free version with some limitations (the worst of which is only 3 tags per recording https://play....
I use Cubase which is good but not cheap. There are GNU projects trying the FOSS equivalent of Cubase that you can look at. Then you can get a plugin and many effects. I think that your question might be better suited for https://sound.stackexchange.com/
You can use Matlab or its open source alternative Octave.
An example of how this can be accomplished in Matlab:
Here is the code that I used:
load handel.mat % An example dataset included in Matlab
plot(y) %Plot the graph without noise
y = y + randn(size(y))*.1; % Add additive white ...
If you are looking for a VoIP recorder specifically for skype then Pamela would be the best option. Its Feature Includes
Free Skype Call Recording Skype Chat Recording Record calls
automatically Skype Conference Call manager Answering Machine Auto
Chat Reply Email Forwarding Blogging & Podcasting Free Skype Video
Recording Skype Call ...
Although I have never tried any of these but maybe worth a check:
Voxal Voice Changer
Morph voice in real time(Includes robot, girl, boy, alien, ethereal, echo and many more)
Works on Windows and MAC OS X
Powerful, real-time voice changing software
Modify, change and disguise your voice in any application or game that
uses a microphone to ...
Fake Voice - Free Voice Changer should meet your needs:
It will morph your voice in real time.
It has a specific setting for sounding robotic.
It is free of charge (gratis).
It works on Windows.
The only requirement I'm not sure about is if can be used as an input source for Mumble, but I don't see any reason why not as long as your sound input for Mumble ...
There is software to do this, but it's pretty expensive.
If you're starting off you could get software like Audacity to do some basic audio (voice) manipulation because it's free.
Or if you have some cash to spend you could buy a program from this website.
The price range is from 70 USD to 700 USD.
You can do this with the native app, at least you can on the GS5...
Just tap the hamburger icon (the three bars) !
to get to your list of recordings and tap and hold the recording you want to upload.
You will get the "Share" icon, (the three interconnected dots,)
The trash icon and the more options ellipses.
Tap the Share and a list of options will appear. ...