Specifications

AMBE-3000™ Vocoder Chip Users Manual
Version 2.8, August, 2011
Dat
a and Configuration Packets
current speec
h frame.
Output Speech packets ALWAYS include the number of samples contained in the
current speech frame.
0 1
Output Speech packets include the number of samples contained in the current
speech frame ONLY WHEN IT IS DIFFERENT FROM THE LAST FRAME.
1 0
Output Speech packets include the number of samples contained in the current
speech frame ONLY WHEN THE NUMBER OF SAMPLES DOES NOT EQUAL
160.
1 1
Table 65 PKT_SPCHFMT Data Settings
PKT_SPCHFMT Response field (1 byte) this field indicates the output Speech packet format has been changed.
PKT_SPCHFMT Response Field - Format
Field Identifier Response Field Data
1 Byte 0 Byte
0x16 No Data Needed
Table 66 PKT_SPCHFMT Response Field
PKT_PRODID field (1 byte total) this field will cause the AMBE-3000™ Vocoder Chip to respond with a string that contains
the product identification.
PKT_PRODID Field - Packet Format
Field Identifier Control Field Data
1 Byte 0 Byte
0x30 No Data Needed
Table 67 PKT_PRODID Field
PKT_PRODID Response field (11 byte) this field is a null-terminated string that contains the product identification for
example “AMBE3000”
PKT_PRODID Response Field - Format
Field Identifier Response Field Data
1 Byte varies <= 16 Bytes
0x30 Product ID Data
Table 68 PKT_PRODID Response Field
PKT_VERSTRING field (1 byte total) this field will cause the AMBE-3000™ Vocoder Chip to respond with a string that
contains the product version number.
PKT_VERSTRING Field - Packet Format
Field Identifier Control Field Data
1 Byte 0 Byte
0x31 No Data Needed
Table 69 PKT_VERSTRING Field
(Subject to Change) Page 63
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