lilimike
Member
I am looking for a cheap way to boost the analog sound from a Raspberry pi.
We have a phone system with a radio connected to it to play music for when a customer is on hold. Since the location gives poor signals and any radio station does not come in clear, I replaced the radio with a Raspberry pi and set it up to stream from the web.
Using mplayer2 there are some volume options to boost the sound but it comes with lots of distortion.
The phone system specs calls for an input level of 0.25 V rms across an input impedance of 3300 Ω.
Is there a circuit I can build for under $20 to boost the sound without distortion?
I don't need much level difference and the input is mono.
Mike
We have a phone system with a radio connected to it to play music for when a customer is on hold. Since the location gives poor signals and any radio station does not come in clear, I replaced the radio with a Raspberry pi and set it up to stream from the web.
Using mplayer2 there are some volume options to boost the sound but it comes with lots of distortion.
The phone system specs calls for an input level of 0.25 V rms across an input impedance of 3300 Ω.
Is there a circuit I can build for under $20 to boost the sound without distortion?
I don't need much level difference and the input is mono.
Mike