lilimike
Member
When I connect the Raspberry Pi (running the Linux application Mplayer2 streaming music or playing an MP3 file) to the phone system and I put a phone on hold, I hear next to nothing, I just barely distinguish that music is playing.
When I try to connect an 8Ω speaker directly to the analog output of the Pi I am getting just a little more volume as with the phone system. Since I do not have access to the phone system I am testing with the speaker. I figured it was close enough.
The phone system in question is a Norstar ICS 4.0 and from its manual it indicates the folowing:
My objective is to reach he maximum volume possible with no distortion and from this I can control (reduce) the volume from the Mplayer2 command line application.
When I try to connect an 8Ω speaker directly to the analog output of the Pi I am getting just a little more volume as with the phone system. Since I do not have access to the phone system I am testing with the speaker. I figured it was close enough.
The phone system in question is a Norstar ICS 4.0 and from its manual it indicates the folowing:
Code:
External music source (customer supplied)
The music source can be any approved low-power device such
as a radio with a high-impedance earphone jack. The
recommended ICS input level is 0.25 V rms across an input
impedance of 3300 Ω.
My objective is to reach he maximum volume possible with no distortion and from this I can control (reduce) the volume from the Mplayer2 command line application.