Hi. I recently got myself an ADS InstantFM USB radio tuner card. This is exactly what I always wanted, a tuner with a built-in USB soundcard, so no need for loopback cables or anything.
It also happens to have RDS, which can be programmed from user-space since 2.6.32. So to celebrate the release of 2.6.32, I wrote a small command-line tool (basically for myself) to work with that card. The tool impelemnts the following features as of now: * Decode most important RDS messages (program name, radiotext) * Allow for playback via JACK or ALSA * Allow to record to an OGG file The recording and playback features are currently implemented using helper tools: arecord, aplay, oggenc and alsa_in. Here is the URL: http://delysid.org/linux-si470x.tar.xz Future ideas: * Write the capture and playback code in C to allow for: * Stop during playback, buffering the audio for later playback. * Record during playback like time-machine: Buffer a defined amount of audio from the past, and use it when the user requests recording. * Maybe integrate libSoundTouch for realtime pitch shifting and time compression (if playback is behind realtime). If you have such a card (luck you!) give the RDS decoding a whirl. Patches of course always welcome. P.S.: A very good existing tool for realtime playback of audio for this tuner card is mplayer: mplayer -radio adevice=hw=2.0:arate=96000 -rawaudio rate=96000 radio://91.2/capture If all you need is this, by all means, go with mplayer. linux-si470x is more geared towards integrating RDS decoding into a command-line tool for operating these tuner cards. P.S.2: Version 0.1 of linux-si470x is now 2 days old. So this is indeed a very early pre-release. But since I didn't find anything equivalent, I thought I'd release it anyway in case someone can make early use of it. -- CYa, ⡍⠁⠗⠊⠕ _______________________________________________ Linux-audio-dev mailing list [email protected] http://lists.linuxaudio.org/mailman/listinfo/linux-audio-dev
