audenc

The audenc command is used to manage encoder audio acquisition settings. The audenc start and audenc stop commands can be used to start and stop encoding of the audio input.

ID is either the encoder ID or all. You can specify a range or a comma-separated list of IDs for the operation, as shown in the examples that follow.

The Makito X1 supports up to 4 audio encoders, the encoder ID numbers are 0-3.

Synopsis

audenc ID start
audenc ID stop
audenc ID mute
audenc ID unmute
audenc ID set parameter=value [parameter=value...]
audenc ID get [config, stats, all]
audenc ID clear

Actions

Action	Description
start	Activates encoding of the audio input.
stop	Stops encoding of the audio input.
mute	Mutes encoding of the audio input (i.e., causes the encoder to encode silence instead of the selected audio input.) Tip This may be used when you do not wish to encode the audio but the decoder being used does not support decoding of video-only streams.
unmute	Resumes encoding of the audio input (when muted)
set	Configures encoder audio parameters. A series of one or more `parameter=value` pairs can be specified at once. See Parameters below.
get	Displays encoder audio status information. You can specify configuration, statistics, or all audio information. Tip To display a summary of all the encoders in a table format, you can use `audenc all get table`.
clear	Clears the encoder’s statistics.
help	Displays usage information for the audenc command

Parameters

Parameter	Default	Description/Values
name	Audio Encoder 0, 1, 2...	A unique descriptive name of up to 63 characters. Using 'none' will revert the audio encoder's name to the default.
input	SDI1CH1+2	The Audio Input for the encoder. Options are: Analog SDI1CH1+2, SDI1CH3+4, SDI1CH5+6, SDI1CH7+8, SDI1CH9+10, SDI1CH11+12, SDI1CH13+14, SDI1CH15+16
language	n/a	The language used for input. Enter a 3-character long ISO639-2 code or none. If you don't know the code for a language, you can directly enter one of the languages below in full or abbreviated form: Albanian, Arabic, Armenian, Bulgarian, Chinese, Croatian, Czech, Danish, Dutch, English, Estonian, Finnish, French, German, Greek, Hebrew, Hindi, Hungarian, Indonesian, Irish, Icelandic, Italian, Japanese, Khmer, Korean, Latvian, Lithuanian, Malay, Maltese, Mongolian, Norwegian, Punjabi, Persian, Polish, Portuguese, Romanian, Russian, Slovak, Slovenian, Spanish, Swahili, Swedish, Turkish, Ukrainian, Vietnamese.
level	6	(Analog Input only) Adjusts the maximum analog Audio Input signal level (0 dBfs). Level range: -6dBu to 0dBu
mode	stereo	The number and type of audio channels to encode. mono (left) monoright stereo (2.0) 3 ch (3.0) 4 ch (4.0) 5 ch (5.0) 6 ch (5.1) 7 ch Note 7ch mode is available only when the algorithm is set to 16BitPassThrough. 8 ch (7.1)
algorithm	[mpeg2]adts	The audio compression algorithm: [mpeg2]adts - Encodes audio using the ISO/IEC 13818-7 MPEG-2 AAC-LC algorithm with an ADTS header. loas - Encodes audio using the ISO/IEC 14496-3 MPEG-4 AAC-LC algorithm with a LOAS/LATM header. 16BitPassThrough - 16 bit Audio PCM data is passed through the encoder without compression.
sample rate	48 kHz	The number of audio samples per second taken from the incoming signal. 48 kHz (SDI audio is always sampled at 48 kHz) 16 kHz (Available for Analog Input only) Note See `bitrate` (below) since the allowed bitrate ranges for 16 kHz sample rate are different than what was previously available for 48 kHz.
bitrate	128 kbps	The Audio Bitrate for the encoder. Overall range: 4...2016 Note The available bitrate range depends on the current `mode` and `sample rate`.

Examples

# audenc 0,2,3 start

Starts audio encoders 0, 2 and 3. You will receive the following confirmation:

3 audio encoders started successfully.

# audenc 0-3 stop

Stops audio encoders 0, 1, 2 and 3.

4 audio encoders stopped successfully.

# audenc 0 set input=SDI1CH1+2

Sets the Audio Input to SDI1CH1+2

# audenc 0 set bitrate=128

Sets the Audio Bitrate to 128. You will receive the following confirmation:

Audio encoder configured successfully

# audenc 0 get

or

# audenc 0 get config

Returns audio configuration information for the encoder, such as:

Encoder ID              : 0
  Name                  : "Audio Encoder 0"
  Configuration:
    Audio Input            : SDI1CH1+2
    Audio Language         : (None)
    Audio Bitrate          : 128 kbps
    Audio Samplerate       : 48 KHz
    Audio Mode             : Stereo
    Audio Algorithm        : MPEG2-ADTS

# audenc 0 get stats

Returns audio status information for the encoder, such as:

Encoder ID           : 0
Name                 : "Audio Encoder 0"
Statistics:
  State                 : WORKING
  Encoded Frames        : 881,906
  Encoded Bytes         : 301,024,128
  Encoded Bitrate       : 128 kbps
  Encoder Errors        : 0
  Encoder PTS           : 0x06503e698
  STC Source Interface  : BNC-1

# audenc 0 get stats

Returns audio configuration information for a Rugged encoder configured for Analog Input, such as:

Encoder ID           : 0
Name                 : "Audio Encoder 0"
Configuration:
  Audio Input           : Analog
  Audio Language        : (None)
  Audio Bitrate         : 5 kbps
  Audio Samplerate      : 16 kHz
  Audio Mode            : Stereo
  Audio Algorithm       : MPEG2-ADTS
  Audio Input Level     : 6 dBu

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