This is free android recorder and it can records best out of quality. Record yourself also with the quality of channels (MONO, STEREO), sampling rate or quality [ 8KHz (phone), 11KHz (phone), 16KHz (phone), 22KHz (FM radio), 32KHz (CD), 44.1KHz (CD) ].

Voice Recorder features:
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Low: 8KHz (phone), 11KHz (phone), 16KHz (phone)
Medium: 22KHz (FM radio), 32KHz (CD)
High:44.1KHz (CD)
UI sample interface
Audio rename, deleting, playing option
Analog and digital Volume Unit Meter display
Unlimited recording time