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Upsampling MQA files to original resolution with sox
03-07-2017, 19:55
Post: #1
Upsampling MQA files to original resolution with sox
Can you do what's proposed in this CA threat with MinimStreamer?

https://www.computeraudiophile.com/forum...esolution/

Quote:
general usage:
sox -S input.mqa.flac output.flac -vsM 352800

so with the above MQA file:
sox -S 2L-087_06_stereo_DXD_FLAC.mqa.flac MQA_upsampled.flac rate -vsM 352800

Now playback

MQA_upsampled.flac
2L-087_stereo-DXD_06.flac

********
I already us SOXR for transcoding. If I understand the post correctly you could play decode and play MQA files this way.

Or am I mistaken? ... If so, please feel free to remove this post.
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04-07-2017, 02:20
Post: #2
RE: Upsampling MQA files to original resolution with sox
I think this would work using convOut in stream.options to pass the necessary upsampling parameters to libsoxr but it will be a few days before I can try it.
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04-07-2017, 19:59
Post: #3
RE: Upsampling MQA files to original resolution with sox
(04-07-2017 02:20)simoncn Wrote:  I think this would work using convOut in stream.options to pass the necessary upsampling parameters to libsoxr but it will be a few days before I can try it.

That would be great! Thank you!
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04-07-2017, 21:31
Post: #4
RE: Upsampling MQA files to original resolution with sox
I haven't been able to find a way to get ffmpeg to pass the -vsM options (or equivalent) to the libsoxr library. Any suggestions would be appreciated.
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