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Fix the README

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Christophe Jacquet 2014-04-28 19:21:42 +02:00
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@ -70,7 +70,7 @@ One way to measure the ppm error is to play the `pulses.wav` file: it will play
### Piping audio into Pi-FM-RDS
If you use the argument `-audio -`, Pi-FM-RDS reads audio data on standard input. This allows to pipe the output of a program into Pi-FM-RDS. For instance, this can be used to read MP3 files using Sox:
If you use the argument `-audio -`, Pi-FM-RDS reads audio data on standard input. This allows you to pipe the output of a program into Pi-FM-RDS. For instance, this can be used to read MP3 files using Sox:
```
sox -t mp3 http://www.linuxvoice.com/episodes/lv_s02e01.mp3 -t wav - | sudo ./pi_fm_rds -audio -
@ -139,6 +139,7 @@ The samples are played by `pi_fm_rds.c` that is adapted from Richard Hirst's [Pi
## History
* 2014-04-28: support piping audio file data to Pi-FM-RDS' standard input
* 2014-04-14: new release that supports any sample rate for the audio input, and that can generate a proper FM-Stereo signal if a stereophonic input file is provided
* 2014-04-06: initial release, which only supported 228 kHz monophonic audio input files