參數(shù)資料
型號(hào)： KS0165
廠商： SAMSUNG SEMICONDUCTOR CO. LTD.
英文描述： Multimedia Audio(波表合成芯片)
中文描述： 多媒體音響（波表合成芯片）
文件頁(yè)數(shù)： 11/20頁(yè)
文件大小： 83K
代理商： KS0165
KS0165
MULTIMEDIA AUDIO
11/
20
memory overhead, compatibility problems, and
erratic audio quality associated with TSR-based
solutions are also completely eliminated. In addition
to handling the myriad chorus associated with
operating the wave table synthesizer, the embedded
CPU is also responsible for performing much of the
work of MPU-401 emulation. Unlike a purely
hardware-based solution, this makes possible future
software updates to support additional functionality,
such as full MPU-401 intelligent mode support.
S
YNTHESIZER
The synthesizer extends and improves upon the
functionality of the KS0164. The basic function
remains unchanged. but the following areas are
changed. The KS0164 digital filter worked quite
well, but at very low cutoff frequencies cutoff
coefficient is sensitive. At very low cutoff frequency,
a single-bit change in the coefficient created audible
artifacts. this made low-frequency filter sweeps all
but impossible. In Filter calculation datapath was
very easy to generate arithmetic overflow. This
makes unpleasant audio effects. To correct this, the
internal datapath have been expanded to 18 bits.
Because the KS0165 has a internal effect processor,
it provide a proper interface with Effect processor.
The specification for the synthesizer are follows:
Architecture : Digital Wavetable Synthesizer
Voices : 32
Polyphony : 32 Note Maximum
Multi timbral Capability
: Up to 16 Parts
Sample Memory
: Up to 16 MWords of
ROM/SRAM/DRAM
Available Sample Sets
: 1M*16bits, 512*16bits
D/A converter
: 16bit Linear Serial Converter,
All Common Data Formats Supported
Sample Playback Rate
: Fixed @ 44.1kHz
Level & Panning Controls
: Separate 16bit L&R Volume Control for
Each voice
Filters : 2 Separate 2 pole Resonant Digital filter
for each voice
Data Formats
: 8/16-bit signed linear or 8/12-bit
compressed
Envelopes : Hardware Envelopes for amplitude
and filters
Effects : Reverb, Chorus( Down load Effect
algorithm)
Firmware : Sequoia Development Group Pegasus
Compatibility
: Roland MT-322 Sound set Compatible
Customized Sound Sets available
E
FFECT
P
ROCESSOR
& D
ELAY
R
AM
KS0165 provides effects sound to D/A by embedded
effects synthesizer. Effects algorithm is downloaded
by host CPU from external MASK ROM. It generates
reverb, chorus and other effects. KS0165 does not
need any external SRAM & Delay RAM which are
used by buffer and effect delay ram.
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