Radio Stream downstreaming and metadata

[ditusade]

Hi Simon,
Can Ministreamer downstream a radio stream (say from 192k to 48k)? Also is there any way to send the metadata (song, artist) for internet radio streams?

A quick search seems both are nay but just wanted to check if I am missing something.

Thanks

[simoncn]

Is this 192 kHz (sample rate) or 192 kbps (bit rate)? Both of these can be changed by MinimStreamer transcoding. If you post your m3u entry for the radio stream, I can provide specific configuration settings for doing this.

It isn't possible to include metadata when streaming a radio station using MinimStreamer. For an explanation, see this post.

[ditusade]

This is the radio station's entry:
#EXTINF:-1, [1;*] 60North Radio
http://r5.zetcast.net/flac

Below is my current transcode setting. In fact, I need all music sources to play at 44k or 48k sample rates as one of my player only accepts those.
I use DSP hence I applied conversion to wav24 across. Ideally, I wanted everything to go though WAV transcoding maintaining their bit depth (16b stays at is) but down-sampled to 44k (88k, 176k) or 48k (96k, 192k). If you have a simpler transcoding setting suggestion, that would really help.
(Pardon if I may not properly understand sample vs bit rate). Thanks

*:wav24, flac(16;44):wav24;44,flac(16;48):wav24;48,flac(16;88):wav24;44,flac(16;96):wav24​;48,flac(16;176):wav24;44,flac(16;192):wav24;48, flac(24;44):wav24;44,flac(24;48):wav24;48,flac(24;88):wav24;44,flac(24;96):wav24​;48,flac(24;176):wav24;44,flac(24;192):wav24;48, wav(16;44):wav24;44,wav(16;48):wav24;48,wav(16;88):wav24;44,wav(16;96):wav24;48,​wav(16;176):wav24;44,wav(16;192):wav24;48, wav(24;44):wav24;44,wav(24;48):wav24;48,wav(24;88):wav24;44,wav(24;96):wav24;48,​wav(24;176):wav24;44,wav(24;192):wav24;48

[simoncn]

Thanks for clarifying that you are changing the sample rate.

This radio station is an Ogg stream with a sample rate of 44.1 kHz, so the transcoding setting of *:wav24 will be applied and the player will receive an output stream of WAV 44.1 kHz 24 bits.

You can shorten your transcode setting to the following:

*:wav24,flac(44):wav24,flac(48):wav24,flac(88):wav24;44,flac(96):wav24​;48,flac(​176):wav24;44,flac(192):wav24;48,wav(44):wav24,wav(48):wav24,wav(88):wav24;44,wa​v(96):wav24;48,wav(176):wav24;44,wav(192):wav24;48

[ditusade]

I think there could be some hidden characters in the provided transcode as it had errors. I troubleshooted it in Notepad and it worked.
I realised I sent you the wrong Radio Stream. Below is the one I wanted to downsample. I added the ogg transcode as below but it still plays at 24/192.
#EXTINF:-1, [21;*] ,EasyRadio
http://live.easyradio.bg/flac

*:wav24,
flac(44):wav24,flac(48):wav24,flac(88):wav24;44,flac(96):wav24;48,flac(176):wav2​4;44,flac(192):wav24;48,
ogg(44):wav24,ogg(48):wav24,ogg(88):wav24;44,ogg(96):wav24;48,ogg(176):wav24;44,​ogg(192):wav24;48,
wav(44):wav24,wav(48):wav24,wav(88):wav24;44,wav(96):wav24;48,wav(176):wav24;44,​wav(192):wav24;48

[simoncn]

I had the same problem with hidden characters when I copied the transcode setting from your post. I think these are added by the forum software when it needs to break a long line.

The 'ogg' transcode input type is only for local ogg files, not ogg network streams (see the list of input types in the the user guide). This is why your ogg(192):wav24;48 transcode setting is not being applied to this radio stream.

The usual workaround for this limitation is to specify * for the input type and a number of users are doing this. Unfortunately the * input type doesn't allow filters, so you can't apply different transcoding settings for different sample rates.

To enable you to do what you want, the solution could be either to add support for the ogg transcoding input type on a network stream or to add support for filters with the * input type. The code in this area is complex and I will need to ensure that any changes don't cause problems with any functionality that people are currently using.

I am away for the next two weeks and I will start looking into this after I return.

[ditusade]

Thanks SImon. Its just a "nice to have" as I have plenty of other good stations to listen to. If its available in future, that would be great as it would open doors for upsampling streaming too for other use cases. No stress either way as Minimserver as is performs so well and is really versatile.