You are here: Vocalocity Voice Browser: VoiceXML Implementation Reference > Standard Types and Defaults > MIME Type Mapping
The following are file extension to MIME type mappings if the Content-Type HTTP header is not provided.
|
MIME Type |
Format |
File Extension |
|---|---|---|
|
application/srgs |
|
gram |
|
application/srgs+xml |
|
grxml |
|
application/ssml+xml |
|
ssml |
|
application/voicexml+xml |
|
vxml |
|
audio/basic |
Headerless 8Khz 8-bit mu-law |
mulaw or ulaw |
|
audio/l16 |
Headerless 8Khz 8-bit L16 |
|
|
audio/vox |
Vox 8Khz 4-bit OKI_ADPCM |
vox |
|
audio/wav |
WAV 8Khz 8-bit mono mu-law |
wav |
|
audio/x-alaw-basic |
Headerless 8Khz 8-bit A-law |
alaw |
|
audio/x-fft |
WAV 6Khz 8-bit FFT |
|
|
audio/x-g726 |
Vox 8Khz 4-bit G726 |
|
|
audio/x-g729A |
Vox 6Khz 8-bit G729A |
|
|
audio/x-gsm610 |
WAV 8Khz GSM610 |
|
|
audio/x-vox |
Vox 8Khz 4-bit OKI_ADPCM |
vox |
|
audio/x-vox-11khz |
Vox 11Khz 8-bit OKI_ADPCM |
vox11 |
|
audio/x-vox-6khz |
Vox 6Khz 8-bit OKI_ADPCM |
vox6 |
|
audio/x-wav |
WAV 8Khz 8-bit mono mu-law |
xwav |
|
audio/x-wav-11khz |
WAV 11Khz 8-bit mono mu-law |
wav11 |
|
audio/x-wav-6khz |
WAV 6Khz 8-bit mono mu-law |
wav6 |
|
text/xml |
|
xml |
You can re-define any audio MIME type without having to define a new MIME type. For each MIME type, you can set rate (sampling rate), bitrate, and codec. Valid values are:
u rate = 6000, 8000, 11000, 16000
u bitrate = any number
u codec = alaw, mulaw, pcm
For example, the MIME type audio/x-wav is defined as 8Khz 8-bit mu-law. To change this to 16Khz 8-bit pcm, provide the following MIME type in your application:
|
audio/x-wav;codec=pcm;rate=16000
|