interference and so lower volume

[kensukekita]

hello, i connected the antena to the gpio 4 pin and when i'm transmitting i got so much interference and low volume

i tried with lot of frequencies but all what i listen to is statics interference and low volume it's hard to listen the song tat i'm transmitting

i used this command

ffmpeg -i opus.mp3 -f s16le -ar 22.05k -ac 1 - | sudo ./fm_transmitter -f 102.9 - and tried this one

sox 1.wav -r 22050 -c 1 -b 16 -t wav - | sudo ./fm_transmitter -f 102.9 -

but none works(both works but with the problems that i already told in this topic)

[diaphon]

did you try to push the volume with -v 10 ? sox -v 10 1.wav -r 22050 -c 1 -b 16 -t wav - | sudo ./fm_transmitter -f 102.9 - worked for me (see #40 )

[kensukekita]

I will try thank you I will reply if it worked

[kensukekita]

it didn't worked i still listening the stactic and interference :c

[kensukekita]

i just noticed that when i tried to transmit on 104.9 it transmit on 105.1 i dont know why it happens :c

[kensukekita]

i just reinstalled raspbian and it is working now! thanks @diaphon

[kensukekita]

yes it is working pretty good now thanks for your help :)

[diaphon]

good to hear ;-)