Appendix E

Voice Encoding Formats

Value	Name	Description
1	VCE_ENCODE_NMS_16	NMS ADPCM, 16 kbit/s
2	VCE_ENCODE_NMS_24	NMS ADPCM, 24 kbit/s
3	VCE_ENCODE_NMS_32	NMS ADPCM, 32 kbit/s
4	VCE_ENCODE_NMS_64	NMS framed PCM 64 kbit/s

10	VCE_ENCODE_MULAW	mu-law 64 kbit/s
11	VCE_ENCODE_ALAW	A-law 64 kbit/s
13	VCE_ENCODE_PCM8M16	PCM, 8 k samples/sec., 16 bits per sample

14	VCE_ENCODE_OKI_24	OKI ADPCM 6 k samples/sec., 24 kbit/s
15	VCE_ENCODE_OKI_32	OKI ADPCM 8 k samples/sec., 32 kbit/s

16	VCE_ENCODE_PCM11M8	PCM, 11 k samples/sec., 8 bits per sample, mono
17	VCE_ENCODE_PCM11M16	PCM, 11 k samples/sec., 16 bits per sample, mono

20	VCE_ENCODE_G726	CCITT G.726 ADPCM, 32 kbit/s

22	VCE_ENCODE_IMA_24	IMA/DVI ADPCM 8K samples/sec., 24 kbits/s
23	VCE_ENCODE_IMA_32	IMA/DVI ADPCM 8K samples/sec., 32 kbits/s

24	VCE_ENCODE_GSM (Natural Access 4.x only)	MS-GSM, 13 kbit/s

		Encoding Information	WAVE Information
Name	Value	Frame Size (Bytes)	Frame Time (msec)	WAVE Type	Num Chan	Sample Rate	Data Rate	Block Size	Bits/ Sample
VCE_ENCODE_NMS_16	1	42	20	0x38	1	8000	2100	42	2
VCE_ENCODE_NMS_24	2	62	20	0x38	1	8000	3100	62	3
VCE_ENCODE_NMS_32	3	82	20	0x38	1	8000	4100	82	4
VCE_ENCODE_NMS_64	4	162	20	0x38	1	8000	8100	162	8

VCE_ENCODE_MULAW	10	80	10	7	1	8000	8000	1	8
VCE_ENCODE_ALAW	11	80	10	6	1	8000	8000	1	8
VCE_ENCODE_PCM8M16	13	160	10	1	1	8000	16000	2	16

VCE_ENCODE_OKI_24	14	30	10	0x17	1	6000	3000	1	4
VCE_ENCODE_OKI_32	15	40	10	0x17	1	8000	4000	1	4

VCE_ENCODE_PCM11M8	16	110	10	1	1	11025	11025	1	8
VCE_ENCODE_PCM11M16	17	220	10	1	1	11025	22050	2	16

VCE_ENCODE_G726	20	40	10	2	1	8000	4000	1	4

VCE_ENCODE_IMA_24	22	36	10	0x11	1	6000	3600	244	4
VCE_ENCODE_IMA_32	23	46	10	0x11	1	8000	4600	244	4

VCE_ENCODE_GSM (Natural Access 4.x only)	24	130	80	0x31	1	8000	1625	65	NA

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