Cypress S6J3200 Series, Manual

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CHAPTER 20:Sound Mixer
504 S6J3200 Series Hardware Manual Document Number: 002-04852 Rev. *G
3.3.
Sound Source Input and Internal Mixing Process Mode
Input the input sound source to PMIS0 to 4 in 32-bit units, regardless of the sound source format. Also
input using 32-bit units in the case of 16-bit monaural sound source input.
The sound source will be mixed internally by the mixer as a 32-bit stereo sound source. In other words,
the upper 16 of the 32 bits is considered to be the left sound source, with the lower 16 bits are considered
to be the right sound source, and this is mixed with the upper 16 bits and lower 16 bits of sound sources
that are input from other channels.
For input of 16-bit sound sources, the n-th sound source is input as the upper 16 bits and the n+1 sound
source is input as the lower 16 bits for 32-bit unit input. Note that n is a positive integer.
A processing mode can be selected from among those shown in Table 3-2 for monaural sound source
internal processing.
For information about configuring settings by software, see MXCHMONO under 4.5.
Table 3-2
Processing Mode Application Internal Process Overview
Stereo processing Stereo processing Mixes input 32-bit stereo sound source.
Monaural processing R Right-side mixing
Mixes by converting to 32-bit data (Upper 16 bits = ALL 0, Lower 16 bits =
Monaural sound source).
Monaural processing L Left-side mixing
Mixes by converting to 32-bit data ('Upper 16 bits = Monaural sound
source, Lower 16 bits = ALL 0).
Monaural processing LR Both side mixing (Left=Right)
Mixes by converting to 32-bit data (Upper 16 bits = Lower 16 bits =
Monaural sound source).
An example of monaural processing is shown in Figure 3-1.
Figure 3-1
: : : : : :
: : : : : :
Source 6 Source 5 Source 6 Source 5 Source 6 Source 5
Source 4 Source 3 Source 4 Source 3 Source 4 Source 3
Sound source Source 2 Source 1 Sound source Source 2 Source 1 Sound source Source 2 Source 1
: : : : : :
: : : : : :
0000 Source6 Source6 0000 Source6 Source6
0000 Source5 Source5 0000 Source5 Source5
0000 Source4 Source4 0000 Source4 Source4
0000 Source3 Source3 0000 Source3 Source3
0000 Source2 Source2 0000 Source2 Source2
Process 0000 Source1 Process Source1 0000 Process Source1 Source1
Upper 16bit Lower 16bit Upper 16bit Lower 16bit Upper 16bit Lower 16bit
Monaural process L Monaural process LR Monaural process R
Notes:
−
A change in processing mode made while sound source is transferred to the sound source input
channels PMIS0 through PMIS4 is prohibited.
−
Monaural processing cannot be used on a 32-bit stereo sound source. Attempting to do so will
result in improper sound.