JEITA  CP-3451 - 85 - The specific values of the information stored in fmt-ck and fact-ck in the case of the IMA-ADPCM format are given in Table 27 and Table 28. Table 27 IMA-ADPCM Format fmt-ck and fact-ck Information (1) IMA-ADPCM (DVI-ADPCM) Format Members Code ckSize(fmt-ck) 00000014.H (20 bytes) wFormatTag 0011.H (IMA-ADPCM format) nChannels 0001.H (monaural) or 0002.H (stereo) nSamplesPerSec The values of each mode are as follows. 00001F40.H (8.0 kHz) 00002B11.H (11.025 Hz) 00005622.H (22.050 Hz) 0000AC44.H (44.10 Hz) nAvgBytesPerSec The values of each mode are as follows. 00000FD7.H (8.0 kHz, 4-bit monaural) 00001FAE.H (8.0 kHz, 4-bit stereo) 000015D4.H (11.025 kHz, 4-bit monaural) 00002BA9.H (11.025 kHz, 4-bit stereo) 00002B5C.H (22.05 kHz, 4-bit monaural) 000056B9.H (22.05 kHz, 4-bit stereo) 0000566D.H (44.10 kHz, 4-bit monaural) 0000ACDB.H (44.10 kHz, 4-bit stereo) Definition: nSamplesPerSec*nBlockAlign/wSamplesPerBlock nBlockAlign The values of each mode are as follows. 0100.H (8.0 kHz, 4-bit monaural) 0200.H (8.0 kHz, 4-bit stereo) 0100.H (11.025 kHz, 4-bit monaural) 0200.H (11.025 kHz, 4-bit stereo) 0200.H (22.05 kHz, 4-bit monaural) 0400.H (22.05 kHz, 4-bit stereo) 0400.H (44.10 kHz, 4-bit monaural) 0800.H (44.10 kHz, 4-bit stereo) Although the definition is (N+1) * 4 * nChannels, the use of 256 * nChannels * max (1,nSamplesPerSec / 11.025kHz) is recommended. wBitsPerSample 0004.H (4 bits) cbSize 0002.H