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

[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

[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).

[zulunation]

Thanks, It worked!

[bidid]

hello sir please can you give me the code i needed thanks

[zulunation]

See the datasheet.
There is a code sample there.

I noticed that REG_VOL does not change monitor volume during recording.
As stated in datasheet.
Also I see that DAC_VOL does not change also.
Is that correct?

[pasi]

I noticed that REG_VOL does not change monitor volume during recording.
As stated in datasheet.
Also I see that DAC_VOL does not change also.

In the vs1053b encoding mode a change in SCI_VOL isn't detected without the patches package. DAC_VOL should still work, because it's a direct hardware register.

If you're using an app (Ogg Vorbis Encoding App, or the VS1053/VS1063 WAV PCM Recorder Application), they may behave differently.