Upsampling

[Discovery]

I am getting good results with a Raspberry Pi 2 into an Audiolab M-DAC. It would be great to upsample the output so that the DAC has less work to do.

[paranoidjack]

You can add this to the MPD config (/etc/mpd.conf) for 192Khz/24bit/2channel

Code: Select all

audio_output_format    "192000:24:2"
samplerate_converter    "soxr very high"

Using this with a Raspberry Pi2 and IQaudio DAC+

[mika-nl]

Are you hear that ?

[nbnb]

Are you hear that ?

i have a similar problem. not for sound quality but in order to use an external DAC which needs a fixed sample rate. i was able to use soxr to enable upsampling for mpd. however upsampling for shairport does not work this way. it seems that would have to be set up within alsa.

so my feature wish: enable upsampling/resampling to a chosen rate in runeUI, which then works for all sources. preferably by using a patched alsa which uses soxr for resampling (such a patch seems to exists somewhere in the interwebs but seems not to be included in alsa)

[Audiotone]

[quote="paranoidjack"]You can add this to the MPD config (/etc/mpd.conf) for 192Khz/24bit/2channel

Code: Select all

audio_output_format    "192000:24:2"
samplerate_converter    "soxr very high"

Would be nice if this was available in the settings menu...

[rikardo1979]

You can add this to the MPD config (/etc/mpd.conf) for 192Khz/24bit/2channel

Code: Select all

audio_output_format    "192000:24:2"
samplerate_converter    "soxr very high"

Would be nice if this was available in the settings menu...

+1 for this

You have this option in MoodeAudio, so it is possible to achive. It all depends on developers if they going to add it into RuneAudio

[Audiotone]

You can add this to the MPD config (/etc/mpd.conf) for 192Khz/24bit/2channel

Code: Select all

audio_output_format    "192000:24:2"
samplerate_converter    "soxr very high"

Would be nice if this was available in the settings menu...

+1 for this

You have this option in MoodeAudio, so it is possible to achive. It all depends on developers if they going to add it into RuneAudio

I tried to modify the mpd.conf file...saved it, opened it and mods were added...but after reboot mods are no longer in the conf file...what do I do wrong?

[hondagx35]

Hi,

if you want to set an option in mpd.conf you have to use:

Code: Select all

redis-cli hset mpdconf audio_output_format "96000:24:2"

on the console and reboot to get it active.

Frank

[rikardo1979]

Hi,

if you want to set an option in mpd.conf you have to use:

Code: Select all

redis-cli hset mpdconf audio_output_format "96000:24:2"

on the console and reboot to get it active.

Frank

I think you have a little typo there Frank. Should be

Code: Select all

redis-cli hset mpdconf audio_output_format "192000:24:2"

to get 24/192

[hondagx35]

Hi rikardo1979,

this was only an example.

Frank