The supported audio formats on BlackBerry devices are the following:
AAC (Advanced Audio Coding) – The supported formats include MPEG2 and MPEG4, as well as HE-AAC / AAC+. The supported sample rates are 8 KBps, 11.025 KBps, 12 KBps, 16 KBps, 22.05 KBps, 32 KBps, 44.1 KBps and 48 KBps. The supported channels are all configurations of mono and stereo (Note: Depending on the BlackBerry Device Software version, AAC+ may not support parametric stereo ).
AMR (Adaptive Multi-Rate) – The supported AMR-NB rates are 4.75 KBps, 5.15 KBps, 5.9 KBps, 6.7 KBps, 7.4 KBps, 7.95 KBps, 10.2 KBps, and 12.2 KBps; and the input must conform to RFC3267 Section 5 on the Internet FAQ Archive web site.
MIDI – Partial support of MIDI on older BlackBerry devices refers to a buzzer capable of buzzing at various frequencies and volumes. All other BlackBerry devices support polyphonic MIDI.
MP3 – Currently, the supported format is MPEG-1 Layer 3; the supported sample rates are 32KHz, 44.1KHz, and 48KHz; and the supported channels are 1 (mono) and 2 (stereo).
ADPCM2 – This is a proprietary sampled audio format.
WAV – The supported encodings include PCM, uLaw, and aLaw. The supported sampling rates are 8 kHz, 16 kHz, 22.05 kHz, 32 kHz, 44.1 kHz, and 48 kHz with 8-bit and 16-bit depths in mono or stereo.