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dopwav large files
21-06-2017, 08:28
Post: #1
dopwav large files
As I tried to play a file DSD256 2.8GB (17 min.), the playback was normal without dopwav transcoding.
However, only the first 20 seconds could be played with dopwav.
The BubbleUPnP showed the correct duration 17 min. As soon as the playback started, it was reduced to 20 seconds. After 20 seconds, the next track started to play.

I thought a transcoding process took place while streaming, which means it does not matter how large the file size is.
How can I play this 2.8GB DSD256 file in DoP? It is the 3rd movement of Mahler Symphony No.5.
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21-06-2017, 15:49 (This post was last modified: 21-06-2017 15:49 by NickD.)
Post: #2
RE: dopwav large files
(21-06-2017 08:28)MINORISUKE Wrote:  As I tried to play a file DSD256 2.8GB (17 min.), the playback was normal without dopwav transcoding.
However, only the first 20 seconds could be played with dopwav.
The BubbleUPnP showed the correct duration 17 min. As soon as the playback started, it was reduced to 20 seconds. After 20 seconds, the next track started to play.

I thought a transcoding process took place while streaming, which means it does not matter how large the file size is.
How can I play this 2.8GB DSD256 file in DoP? It is the 3rd movement of Mahler Symphony No.5.

Transcoding this file to dopwav will produce a file in excess of 4GB that will not play. I had the same problem. The only solution was to break the original file into 2 sections and play back gapless. I used Vinyl Studio to break the file but I'm sure there are other such utilities available.
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22-06-2017, 06:01
Post: #3
RE: dopwav large files
As a further note of clarification, the 4 GB limitation is imposed by the WAV file format and not by MinimStreamer.
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22-06-2017, 06:52
Post: #4
RE: dopwav large files
Thank you for your reply, NickD and Simon.
At first, I thought about this as well. As I was not sure whether the transcoding took place at the beginning with creating a target file or during streaming, I asked this question.

It is still unclear to me why the transcoding can be done in such a short period even for a file DSD256 with 2GB.
A "normal" off-line file conversion with foobar2000 from flac to WAV takes time of tens of seconds order, even for several hundreds of MB.
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22-06-2017, 15:44
Post: #5
RE: dopwav large files
Transcoding from DSD to DoP/WAV is a very simple operation that doesn't change the DSD audio data. Also, with transcoding "on the fly", there is no disk I/O needed and each chunk of audio data can be processed just before it is sent to the renderer (and while the renderer is playing the previous chunk).
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