Ivan Ivanov wrote: > If you've ever heard the spkmodem output, please could you try to > decode this stuff if its' easy for you, or at least to tell if it > sounds OK or not?
It sounds somehow like I remember spkmodem, but the file is very low amplitude (too quiet) and I can't confirm whether the signal is the correct speed. I've only received spkmodem successfully with the microphone right next to the speaker - moving the mic only a few cm lost signal. Note that spkmodem-recv requires 48k s16le mono PCM. I tried decoding, resampling and normalizing the ogg file without success so I suggest increasing amplitude at the source; move the mic closer to the speaker and use the parecord | spkmodem-recv command as documented in spkmodem-recv.c. Make sure to set your mic input volume to 0dB (and not higher!) so that you get the best possible signal, without attenuation. //Peter -- coreboot mailing list: [email protected] https://mail.coreboot.org/mailman/listinfo/coreboot
