VS1053: how to disable output to line out when recording from mic

Writing software that controls the system and peripherals such as displays, SD cards, Buttons, LEDs, Serial Ports etc.
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zulunation
Senior User
Posts: 36
Joined: Mon 2012-02-06 23:04

VS1053: how to disable output to line out when recording from mic

Post by zulunation »

HI ALL,

I noticed when vs1053 recording from mic it outputs data to output in real-time.
Is any way to disable output to line out when recording from mic or line in?
Thanks
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pasi
VLSI Staff
Posts: 2053
Joined: Thu 2010-07-15 16:04

Re: VS1053: how to disable output to line out when recording from mic

Post by pasi »

You can set the monitoring volume to -96dB. The monitoring volume doesn't affect the encoding itself.

Either write 0xc0c0 to SCI_VOL well before starting encoding so that it has ended up as DAC volume by the time you start encoding, or write to DAC_VOL directly (see 10.8.7. of the vs1053 datasheet).
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zulunation
Senior User
Posts: 36
Joined: Mon 2012-02-06 23:04

Re: VS1053: how to disable output to line out when recording from mic

Post by zulunation »

Thanks, It worked!
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