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ML2302

Recording and Playback LSI with Built-in 2-Bit ADPCM2 Supported FIFO

Oki Electric Industry

ML2302 Datasheet PDF : 24 Pages

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OKI Semiconductor

FEDL2302DIGEST-05

ML2302

FUNCTIONAL DESCRIPTION

Voice Synthesis Algorithms

The ML2302 supports five PCM algorithms to process various kinds of voices.

1. 4-bit OKIADPCM algorithm

2. 4/5/6/7/8-bit OKIADPCM2 algorithm

3. 2-bit OKIADPCM algorithm

4. 8/16-bit straight PCM algorithm

5. 8-bit OKI Non-linear PCM algorithm

Voice Synthesis Algorithms and Sampling Frequencies during Recording and Playback

The relationships between the voice synthesis algorithms and sampling frequencies available during recording and

playback are shown in Tables 1.1.1 and 1.1.2.

Table 1.1.1 During Recording

fsam (kHz)

Voice

4.0 5.3 6.1 6.4 8.0 9.8 10.7 11.6 12.8 14.2 16.0 18.3 21.3 25.6

synthesis algorithm

4-bitADPCM

4/5/6/7/8-bitADPCM2

2-bitADPCM2

8-bit straight PCM

16-bit straight PCM

8-bit Non-linear PCM

°°°°°

°°

×××××× × × × × × × × ×

Table 1.1.2 During Playback

fsam (kHz)

Voice

4.0 5.3 6.1 6.4 8.0 9.8 10.7 11.6 12.8 14.2 16.0 18.3 21.3 25.6

synthesis algorithm

4-bitADPCM

4/5/6/7/8-bitADPCM2

2-bitADPCM

8-bit straight PCM

16-bit straight PCM

8-bit Non-linear PCM

°°°°°°

°°°

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