OS remains the same – It must not require the user to make any changes to their existing phone operation system.Offline Recording – Must have a feature to record offline and share via Bluetooth. Browser Adaptability – Voice recorder app should be adaptable across client browsers like Firefox, Safari, Opera, Google Chrome, Internet Explorer etc.Must function across platforms – could be a cross-platform or hybrid application.Supports Multiple File Formats – These apps must allow audio recording file extensions (including uncompressed, lossless and lossy compression) like M4A Audio File Type, FLAC, MP3, MP4, WAV, WMA and AAC, m4a, AAC, FLAC, wav, WMA, Ogg, amr etc.Allows Transcription – It must allow transcription with a single-tap.Editing/Playback – There must be playback and editing capabilities to edit/trim the audio recording.Share Recordings – Audio sound recorder apps must be able to share the recording via email, SMS, MMS, social media and drop-box/cloud storage locations as well.Microphone Collaboration – Microphone gain collaboration tool must/can be there.Background Recording – It is good to have the ability to record in the background (or in absence of display).MP3 Encoding – Sound recorder apps must come along with mp3 encoding with an adjustable sample rate (8-44 kHz).Live Analyzer – The voice recorder app must feature a live audio spectrum analyzer.Play/Pause/Resume/Save/Delete – The audio/sound/voice recording application must have features to save/pause/resume/cancel the recording process control recordings list.User Interface – Should have a simple user interface ease of use and user-friendliness must be the core of audio recorder apps.High Quality – Should have the ability to record voice with high quality.What should be the main features of audio sound recorder apps? So let’s begin with discussing the main features and how to create the easiest voice recorder apps. Sometimes voice recorder apps are so sensitive that they pick up just about any noise, good enough to record music at concerts. Besides smartphones, such apps can also work equally well on smartwatches and tablets. Audio Recorder apps are free to use and are sometimes appended with some advertisements, depending upon the monetization model. Normally smartphones come with two microphones and one voice recorder application pre-installed within them.
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