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Transcode AAC to WAV - Printable Version

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Transcode AAC to WAV - radekker - 28-09-2016 18:17

Hello,

I'm using Minimserver/streamer for a while now on a QNAP NAS (TS-119P).
Unfortunately I cannot stream my favorite radio station as it is in AAC format and my Hegel H160 player/DAC does not support AAC.
So I put to put "aac:wav" in "stream.transcode" (Minimwatch) and restarted Minimserver, but no sound at all.
The radio stream in the playlist looks like this:
#EXTINF:-1,[RPA] Radio Paradise
http://stream-uk1.radioparadise.com/aac-320
Can anyone tell me what I've done wrong?


RE: Transcode AAC to WAV - simoncn - 28-09-2016 19:43

Some renderers need to know the stream type before they start to play it. You can do this by changing the #EXTINF line to:
#EXTINF:-1,[RPA;aac] Radio Paradise

For more information about what this does, see the last part of this section.


RE: Transcode AAC to WAV - radekker - 28-09-2016 20:28

(28-09-2016 19:43)simoncn Wrote:  Some renderers need to know the stream type before they start to play it. You can do this by changing the #EXTINF line to:
#EXTINF:-1,[RPA;aac] Radio Paradise

For more information about what this does, see the last part of this section.

No luck so far.
I presume that the the old TS-119P cannot transcode at all.


RE: Transcode AAC to WAV - simoncn - 28-09-2016 20:55

(28-09-2016 20:28)radekker Wrote:  No luck so far.
I presume that the the old TS-119P cannot transcode at all.

I am transcoding on my TS-119 (even older than the TS-119P), so this isn't the reason. I am fairly sure the problem is with the renderer capabilities. What radio streams is the renderer able to play?


RE: Transcode AAC to WAV - radekker - 29-09-2016 08:50

This is what it says in the manual.

The Hegel H160 can play your media files using a UPnP compatible media player.
The Hegel H160 supports the following formats from a UPnP compatible player:
PCM (WAV/AIFF), FLAC, MP3, Ogg

As it cannot playback AAC I put "aac:wav" in "stream.transcode".


RE: Transcode AAC to WAV - simoncn - 29-09-2016 09:53

Are you able to play mp3 radio stations on the renderer without transcoding?

Are you able to play .aac (ADTS) files on the renderer with aac:wav transcoding? If you don't have any .aac files, you can download a test file from this link.


RE: Transcode AAC to WAV - radekker - 29-09-2016 12:18

(29-09-2016 09:53)simoncn Wrote:  Are you able to play mp3 radio stations on the renderer without transcoding?

Are you able to play .aac (ADTS) files on the renderer with aac:wav transcoding? If you don't have any .aac files, you can download a test file from this link.

I tried some MP3 radio stations, and they all sound fine.
I also played the AAC test file, it sounds good too (with "aac:wav").


RE: Transcode AAC to WAV - simoncn - 30-09-2016 10:06

(29-09-2016 12:18)radekker Wrote:  I tried some MP3 radio stations, and they all sound fine.
I also played the AAC test file, it sounds good too (with "aac:wav").

OK, we have established that trancoding to WAV is working with your renderer for files but not for radio streams. Please do the following:

1) Set the stream ID to [RPA;aac] as mentioned in an earlier post
2) Set stream.transcode to aac:wav
3) From the minim icon, select Rescan
4) From the minim icon, select 'Show log'
5) In the log window, change the logging level to Debug
6) In the log window, click Clear
7) Leave the log window open
8) Try to play the [RPA] radio station
9) You should see some messages appear in the log window
10) In the log window, click 'Save as' to create a log file
11) In the log window, change the logging level back to Info
12) Zip the log file and attach it to a post here

This should help me see why the renderer is having a problem with the transcoded WAV stream.


RE: Transcode AAC to WAV - radekker - 30-09-2016 13:28

(30-09-2016 10:06)simoncn Wrote:  
(29-09-2016 12:18)radekker Wrote:  I tried some MP3 radio stations, and they all sound fine.
I also played the AAC test file, it sounds good too (with "aac:wav").

OK, we have established that trancoding to WAV is working with your renderer for files but not for radio streams. Please do the following:

1) Set the stream ID to [RPA;aac] as mentioned in an earlier post
2) Set stream.transcode to aac:wav
3) From the minim icon, select Rescan
4) From the minim icon, select 'Show log'
5) In the log window, change the logging level to Debug
6) In the log window, click Clear
7) Leave the log window open
8) Try to play the [RPA] radio station
9) You should see some messages appear in the log window
10) In the log window, click 'Save as' to create a log file
11) In the log window, change the logging level back to Info
12) Zip the log file and attach it to a post here

This should help me see why the renderer is having a problem with the transcoded WAV stream.

I created two log files , both attempting to stream [RPA;aac] radio station.


RE: Transcode AAC to WAV - simoncn - 30-09-2016 15:01

(30-09-2016 13:28)radekker Wrote:  I created two log files , both attempting to stream [RPA;aac] radio station.

Thanks for this. These logs only show browsing activity. There is no request from the renderer attempting to play the radio stream.

The problem might be caused by some incompatibility between your control point and your renderer. Can you try a different control point?