Mute and Unmute not working

Hi all,

I am working on an ecall application on AR7554 modem, the audio path is routed to I2S, but during a call, if i am trying to mute or unmute the audio stream i see this in the log:

Jan  6 00:03:44 (none) user.debug Legato:  DBUG | _UNKNOWN_[475]/framework T=main | LE_FILENAME le_audio_Unmute() 1726 | Sending message to server and waiting for response : 4 bytes sent
Jan  6 00:03:44 (none) user.err Legato: =ERR= | audioDaemon[447]/le_pa_audio T=main | pa_audio.c pa_audio_Mute() 3398 | This interface (9) is not supported
Jan  6 00:03:44 (none) user.err Legato: =ERR= | audioDaemon[447]/audio T=main | le_audio.c le_audio_Unmute() 1752 | Cannot unmute the interface

I am using Legato 16.10.3.

Anyone also had this problem before?

Hi Mihaipop,
Using which inteface you are trying to mute/unmute the audio? Muting/unmuting the speaker interface(le_audio_OpenSpeaker()) is supported. Muting/Unmuting of interfaces Receiver and transmitter is not supported by firmware i think.

Please let me know using which interface you are trying to mute/unmute.

Muralidhara N.

Hello, thank you for replying. I want to mute this interface:

feOutRef = le_audio_OpenI2sTx(LE_AUDIO_I2S_STEREO);