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Input codec

Codec for storing media

Codec information

File format

1 minute
file size

1 hour
file size

8 Khz codecs

PCM8

8 bit, 8 Khz, Mono

wav

470 Kbyte

27.5 Mbyte

8 bit, 8 Khz, Stereo

wav

936 Kbyte

54.9 Mbyte

PCM16

16 bit, 8 Khz, Mono

wav

936 Kbyte

54.9 Mbyte

16 bit, 8 Khz, Stereo

wav

1875 Kbyte

109.9 Mbyte

MSADPCM

4 bit, 8 Khz, Mono

wav

233 Kbyte

13.7 Mbyte

4 bit, 8 Khz, Stereo

wav

469 Kbyte

27.5 Mbyte

GSM FR
most used 

8 Khz, Mono

wav

100 Kbyte

6 Mbyte

Speex

8 Khz8Khz, Mono

ogg

45 Kbyte

2.7 Mbyte

8 Khz, Stereoogg58.5 Kbyte3.51 Mbyte
Speex VAD
(voice activity detection) 
8 Khz, Monoogg~34 Kbyte~2 Mbyte
8 Khz, Stereoogg~44 Kbyte~2.6 Mbyte

Opus

8 Khz, Mono

ogg

57 Kbyte

3.43 Mbyte

8 Khz, Stereo

ogg

114 Kbyte

6.86 Mbyte

Opus VAD
(voice activity detection) 

 

8 Khz, Mono

ogg

~50 Kbyte

~3 Mbyte

8 Khz, Stereo

ogg

~100 Kbyte

~6 Mbyte

G.711
(both A and μ)
8 Khz only
8 bit, 8 Khz, Monowav469 Kbyte27.5 Mbyte
8 bit, 8 Khz, Stereowav936 Kbyte54.9 Mbyte

16 Khz codecs

 

 

 

 

 

 

 

 

 

PCM8

8 bit, 16 Khz, Mono

wav

936 Kbyte

54.9 Mbyte

8 bit, 16 Khz, Stereo

wav

1875 Kbyte

109.9 Mbyte

PCM16

16 bit, 16 Khz, Mono

wav

1875 Kbyte

109.9 Mbyte

16 bit, 16 Khz, Stereo

wav

3749 Kbyte

219.7 Mbyte

MSADPCM

4 bit, 16 Khz, Mono

wav

469 Kbyte

27.5 Mbyte

4 bit, 16 Khz, Stereo

wav

936 Kbyte

54.9 Mbyte

GSM FR
most used 

8 Khz, Mono

wav

100 Kbyte

6 Mbyte

Speex

16 Khz, Mono

ogg

90 Kbyte

5.4 Mbyte

16 Khz, Stereo

ogg

117 Kbyte

7 Mbyte

Speex VAD

16 Khz, Mono

ogg

68 Kbyte

~4 Mbyte

16 Khz, Stereo

ogg

88 Kbyte

~5.2 Mbyte

Opus16 Khz, Monoogg120 Kbyte7.2 Mbyte
16 Khz, Stereoogg172 KByte10.35 Mbyte
Opus VAD
(voice activity detection) 
16 Khz, Monoogg100 Kbyte6 Mbyte
16 Khz, Stereoogg150 Kbyte9 Mbyte
Codecs with different sample rates depending on the PBX settingsG.711
(both A and μ)
8 bit, 8-48 Khz, Monowav469-2813 Kbyte27.5-165 Mbyte
8 bit, 8-48 Khz, Stereowav932- 5589 Kbyte54.9-327 Mbyte