[pulseaudio-discuss] Play audio files of high sample rates without hassle

[Milan Oravec]

Hi, I'm trying to setup my HTPC Linux box as HQ/"Audiophile" player. By 
default pulseaudio re-samples all played files that don't match default 
or alternate sample rate to those rates which is not appreciated in this 
scenario.

After some trial and investigation found reason for not working original 
patch of high sample rates playback without re-sampling posted here:

  https://patchwork.freedesktop.org/patch/124196/

This patch alternates src/pulsecore/source.c, but for successful 
implementation src/pulsecore/sink.c need to be patched too.

With this implementation are files with high sample rates played with 
their original sample rates without re-sampling if your HW supports 
media encoded sample rates.

I've successfully tested 44.1k,48k,88.2k,96k,176.4k and 192k flac files 
played with VLC on SundBlasterX G5 DAC.

Regards,

Milan



s pozdravom

Milan Oravec

CIKT UKF Nitra
Mobil: +421907670270
email: moravec at ukf.sk

On 20.01.2017 15:22, Milan Oravec wrote:
> Hi, I'm interested in your patch to play audio files of high sample
> rates without hassle. Have you chance to proceed with maintainer
> suggested changes?  I've tired your original patch yesterday, but didn't
> work for me. May be I miss something. So far I've done:
>
> Git cloned actual pulse-sudio
> patched src/pulsecore/source.c
> builded and instaled /usr/local/
> set default-sample-rate/alternate-sample-ratein /etc/pulse/daemon.conf
>
> Audio is working but the same way as before, e.g only two sample rates
> are used directly by DAC, other sample rates are re-sampled to default
> sample rate.
>
> Can you help me please? What I'm missing?
>
> Thank you for your help in advance!
>
> Kind regards,
>
> Milan
>
> --
>
> s pozdravom
>
> Milan Oravec
>
> CIKT UKF Nitra
> Mobil: +421907670270
> email: moravec at ukf.sk
>