Digital Voice Systems Net-2000 Spezifikationen PDF herunterladen (Seite 61)

Net-2000™ VCU Users Manual

Version 4.0, December, 2013

Interface Protocol

6.3.3.9 Voice Data Packet Bytes 20, 21, 22, 23 (tone.idx & tone.amp)

Values for tone.idx and tone.amp are the same as the tone.idx and tone.amp values for Channel Data Packets and are

listed in Table 24 tone.idx Parameter and Table 25 tone.idx Parameter (cont’d). When tone signaling is inactive

tone.i

dx should be set to NO TONE and tone.amp should be set to zero.

6.3.3.10 Voice Data Packet Bytes 24 and 25 (ws)

The ws element of the packet contains the number of voice samples that the Voice Data Packet contains. Values for

ws are listed in Table 36 ws Parameter.

ws = Number of voice samples.

16 bit Word

15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0

Description

Byte 24 Byte 25

Decimal Value

0 0 0 0 0 0 0 0 1 0 0 1 1 1 1 1 159

0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 160

0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 1 161

Table 36 ws Parameter

6.3.3.11 Voice Data Packet Bytes 26 and 27 (format)

The format element of the voice packet also indicates the format of the voice data in the voice[] array. Values for the

voice data type in the format element is listed in Table 37 format Parameter.

format = Soft decision & voice data

16 bit Word

15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0

Voice Data

Formats

Byte 26 Byte 27

Hex Value

Linear 16-bit PCM

0 0 0 0 x x x x 0 0 0 0 0 0 0 0 0xXX00

a-Law 0 0 0 0 x x x x 0 0 1 0 0 0 0 1 0xXX21

u-Law 0 0 0 0 x x x x 0 0 0 1 0 0 0 1 0xXX11

Table 37 format Parameter

The voice data format to synthesize is as follows: The voice data to be synthesized is 16 bit PCM

(format & 0x00ff) == 0x00

6.3.3.12 Voice Data Packet Bytes 28 to 346–350 (voice [0 to ws-1])

The number of elements in the voice[] array can vary between 159 and 161. The nominal number of elements

should be 160. The voice format is 16 bit PCM. Each element of the voice array should contain one linear 16 bit

voice sample.

Channel

[

192

]

16 bit Word

15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0

Bytes

(

)

(

n+1

)

Parameter Name

… … … …

28 - 29 x x x x x x x x x x x x x x x x voice [0-1]

30 – 31 x x x x x x x x x x x x x x x x voice [2-3]

32 – 33 x x x x x x x x x x x x x x x x voice [4-5]

… … … …

346 – 350 x x x x x x x x x x x x x x x x voice [ws-1]

Table 38 voice Parameter

(Subject to Change) Page 53

DVSI CONFIDENTIAL PROPRIETARY

1 2 ... 56 57 58 59 60 61 62 63 64 65 66 ... 74 75

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