[icecast] problems setting the sample rate with icecast2 and darkice

Ian Howard ihoward at uwaterloo.ca
Thu Aug 14 09:28:21 PDT 2003



At present my stream is at 11.025 kHz and I want it to be at 44.1 kHz. 

Input is coming from line-in on my sound blaster card under linux (RH 9) using 
the sb driver. 

I presume that it is icecast that sets the sample rate on the dsp in the card, 
though when I change the settings in icecast.xml and darkice.cfg as show below 
the stream becomes choppy; or rather the sampling doesn't seem to change in 
icecast but only in darkice. i.e. icecast still feeds a 11kHz stream to darkice 
that is trying to stream at 44kHz.

Any ideas on this?

exerpts from my config are below.

Thanks!

Ian

<p>--snip--

darkice.cfg:
# this section describes the audio input that will be streamed
[input]
device          = /dev/dsp  # OSS DSP soundcard device for the audio input
sampleRate      = 44100     # sample rate in Hz. try 11025, 22050 or 44100
bitsPerSample   = 16        # bits per sample. try 16
channel         = 2         # channels. 1 = mono, 2 = stereo

icecast.xml:
   <encode>
        <samplerate>44100</samplerate>
        <channels>2</channels>
        <quality>10</quality>
        <!-- <minimum-bitrate>32000</minimum-bitrate>
         <maximum-bitrate>128000</maximum-bitrate>
        -->
    </encode>

...

     <module>oss</module>

        <param name="device">/dev/dsp</param>
        <param name="rate">44100</param>
        <param name="channels">2</param>
        <param name="metadata">1</param>
        <param name="metadatafilename">metadata_info</param>

<p>
-- 

Ian Howard
ihoward at uwaterloo.ca 
+1 519 888 4567 x5227 

GPG ID: D4D3 8028 8750 604D C9B7  6BF8 03CC 75E6 75F4 0388

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