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+--- Thread: 32 bit floating point wav files (/showthread.php?tid=3632)
32 bit floating point wav files - roadster - 16-10-2016 19:08
Audacity creates 32 bit floating point wav files because this seems to be the format it uses internally. It seems that Minimserver doesn't recognise these as legitimate PCM files and rejects them on scanning.
For example from debug log:-
Quote:18:08:06.147 main: WaveFileReader: ignoring non-PCM file AamusicHQ/Van Morrison/Concert2016/16-Brown Eyed Girl.wav (length 399772812)
Is that unfixable or should I be trying to update ffmpeg on my server? (SLAX Linux).
Thanks.
RE: 32 bit floating point wav files - simoncn - 16-10-2016 21:37
Updating ffmpeg won't make any difference to whether MinimServer can handle these files.
It looks like Audacity can export files in PCM WAV format (see this page). This should be a reasonable solution.
I would be surprised if there are many other UPnP servers and UPnP renderers that can play 32-bit floating-point WAV files. I would be interested in any information you may have about this.
RE: 32 bit floating point wav files - roadster - 17-10-2016 09:57
Here is the information from such a file reported from a program called MediaInfo:-
Quote:GeneralOn a different page it does also report the word format as floating point.
Complete name : D:\music\HQaudio\Van Morrison\Concert2016\01-Its Too Late.wav
Format : Wave
File size : 273 MiB
Duration : 3 min 6 s
Overall bit rate mode : Constant
Overall bit rate : 12.3 Mb/s
Album : Concert
Track name : 1-Its Too Late
Track name/Position : 1
Performer : Van Morrison
Director : Van Morrison
Original source form/Name : Concert
Comment : / Tagged by NCH Software
ITRK : 1
Audio
Format : PCM
Format profile : Float
Codec ID : 3
Codec ID/Hint : IEEE
Duration : 3 min 6 s
Bit rate mode : Constant
Bit rate : 12.3 Mb/s
Channel(s) : 2 channels
Sampling rate : 192 kHz
Bit depth : 32 bits
Stream size : 273 MiB (100%)
Screen capture from wavewizard also attached.
[attachment=1285]
RE: 32 bit floating point wav files - simoncn - 17-10-2016 10:26
This information is interesting but it doesn't change the fact that this is not a standard PCM format for most UPnP renderers and servers (as far as I am aware).
RE: 32 bit floating point wav files - roadster - 17-10-2016 17:00
(17-10-2016 10:26)simoncn Wrote: This information is interesting but it doesn't change the fact that this is not a standard PCM format for most UPnP renderers and servers (as far as I am aware).It was no great problem to convert them to 24 bit using foobar2000 bulk conversion, I'll be more careful to avoid that format in future.