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Question of audio delay from HDMI input to I2S,SPDIF on ADV7842

Question asked by kamei Employee on Jan 23, 2012
Latest reply on Jan 25, 2012 by raymondcarter

Hi,

 

My customer would like to know the internal audio delay time( mimimum ) from HDMI to I2s or SPDIF output on ADV7842.

This question is not for mute function. This question is internal audio delay time in ADV7842.

 

According to our HW manual of ADV7842, we can see the following description.

For best audio muting performance, the following settings are recommended

when the audio sampling frequency of the audio stream is greater than 48 kHz:


( Set AUDIO_MUTE_SPEED to 1 )
Set MAN_AUDIO_DL_BYPASS to 1
Set AUDIO_DELAY_LINE_BYPASS to 1

 

Probably, I think the bypass of audio delay line is the minimum delay time in ADV7842. But I am not sure actual delay time( msec ).

 

Thank you,

 

regards,

Shinji

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