參數(shù)資料
型號(hào): VS1001
廠商: Electronic Theatre Controls, Inc.
元件分類: Codec
英文描述: MPEG AUDIO CODEC
中文描述: MPEG音頻編解碼器
文件頁(yè)數(shù): 31/39頁(yè)
文件大?。?/td> 415K
代理商: VS1001
VLSI
Solution
y
DATASHEET
VS1001
K
8. OPERATION
8.8.3
Sine Test
Sine test is initialized with the 8-byte sequence: 0x53 0xEF 0x6E
n
0 0 0 0, where
n
(48..119) defines
the sine test to use. If we define
FsIdx
= (
n
48)
mod
9
and
FSin
= (
n
48)
/
9
, the following tables
may be used:
FsIdx
Fs
0
1
2
3
4
5
6
7
8
44100 Hz
48000 Hz
32000 Hz
22050 Hz
24000 Hz
16000 Hz
11025 Hz
12000 Hz
8000 Hz
FSin
Length of Sin
32.000 samples
16.000 samples
10.667 samples
8.000 samples
6.400 samples
5.333 samples
4.571 samples
4.000 samples
0
1
2
3
4
5
6
7
Example: Sine test is called with a test value of 62. 62-48 = 14, FsIdx = 5 and FSin = 1. From the tables
we get the sample rate 16000 Hz, and the sine wave length, which is 16 samples. Thus, we’ll get a 1 kHz
voice.
To exit the sine test, send the sequence 0x45 0x78 0x69 0x74 0 0 0 0.
Note: The sine test signals go through the digital volume control, so it is possible to test channels
separately.
Version 4.11,
2003-09-18
31
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
VS1001K 制造商:未知廠家 制造商全稱:未知廠家 功能描述:MPEG AUDIO CODEC
VS1002D 制造商:未知廠家 制造商全稱:未知廠家 功能描述:MP3 AUDIO CODEC
VS1003 制造商:未知廠家 制造商全稱:未知廠家 功能描述:MP3 / WMA AUDIO CODEC
VS1003-BB 制造商:Distributed By MCM 功能描述:VS1003 MP3/WMA BREAKOUT BOARD
VS1003B-L 制造商:CONSONANCE 制造商全稱:CONSONANCE 功能描述:芬蘭VLSI廠家生產(chǎn)的音頻編解碼芯片