[linux-dvb] Re: DVB-T card for PCI-X + Digital-RADIO-Linux-Questions

Jon Burgess jburgess at uklinux.net
Fri Sep 30 22:56:12 CEST 2005


Miernik wrote:
> How can I record such DVB radio, so it only records the audio stream,
> and not also a blank video stream?
> 
> I recorded about 30 minutes of DVB radio with
> cat /dev/dvb/adapter0/dvr0 > file.mpg
> (first using szap -r)
> 
> and the file is 41 MB.
> 
> So I think it's so big, because it has blank video.
> 

41 * 1024 * 1024 * 8 / (30 * 60) = 190kBit/s which seems about right to 
me for audio only. It is very similar to this radio recording which I 
created from a DVB stream:

# file radio.mp2
radio.mp2: MPEG ADTS, layer II, v1, 192 kBits, 48 kHz, Stereo

	Jon



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