I2s using hifiberry dac pro raspberry 3

[pistollero]

Hello, i need some help. I m using hfberry dac pro i2s out to another dac but i have problems because i can only play 24 bit files or 32. 16 bit flac or wav i get white noise. How can i change mpd.conf to feed 24 bit? I tried by ssh but when i reboot it erases the line.

I was thinking if is a bug of the hifiberry driver or not.

[PeteB]

...i can only play 24 bit files or 32. 16 bit flac or wav i get white noise. ...

Can you ex[plain this in a little more detail please?

List which files you tried, which files play, and which do not. Separately, not in one sentence. With that information, someone can probably help you.

[pistollero]

...i can only play 24 bit files or 32. 16 bit flac or wav i get white noise. ...

Can you ex[plain this in a little more detail please?

List which files you tried, which files play, and which do not. Separately, not in one sentence. With that information, someone can probably help you.

Ok:
16 bit wav : white noise
16 bit flac : white noise

24 bit mp3: ok
24.192 flac: ok

If i use archphile and change mpd.conf to format to 24 bit or 24_3 or 32 everything plays ok.

So the problem is on 16 bit files.
but on rune i cannot change mpd.conf.

[PeteB]

Hi,

I would try to confirm what is actually being sent to your DAC when you get the white noise. Maybe you have done that already, but if not, look at the sound car hw parameters. The DAC will be card1 or card0 (not sure which it would be for you). So, one of these commands while playing should do it:

Code: Select all

cat /proc/asound/card1/pcm0p/sub0/hw_params

cat /proc/asound/card0/pcm0p/sub0/hw_params

[hondagx35]

Hi pistollero,

I m using hfberry dac pro i2s out to another dac

Please give us a bit more details on that.

You can try:
- edit the file "/srv/http/db/redis_acards_details"
from

Code: Select all

$redis->hSet('acards_details', 'snd_rpi_hifiberry_dacplus', '{"sysname":"snd_rpi_hifiberry_dacplus","extlabel":"HiFiBerry DAC+ (I²S)","mixer_numid":"1","mixer_control":"Digital","hwplatformid":"01","type":"i2s"}');

to

Code: Select all

$redis->hSet('acards_details', 'snd_rpi_hifiberry_dacplus', '{"sysname":"snd_rpi_hifiberry_dacplus","extlabel":"HiFiBerry DAC+ (I²S)","mixer_numid":"1","card_option":"format\t\"*:32:*\"","mixer_control":"Digital","hwplatformid":"01","type":"i2s"}');

- execute these commands:

Code: Select all

redis-cli del acards
php /srv/http/db/redis_acards_details

- reboot

[pistollero]

Hi,

I would try to confirm what is actually being sent to your DAC when you get the white noise. Maybe you have done that already, but if not, look at the sound car hw parameters. The DAC will be card1 or card0 (not sure which it would be for you). So, one of these commands while playing should do it:

Code: Select all

cat /proc/asound/card1/pcm0p/sub0/hw_params

cat /proc/asound/card0/pcm0p/sub0/hw_params

access: RW_INTERLEAVED
format: S16_LE
subformat: STD
channels:2
rate: 44100 (352800/8)
period_size:4410
buffer_size: 22050

[pistollero]

Hi pistollero,

I m using hfberry dac pro i2s out to another dac

Please give us a bit more details on that.

You can try:
- edit the file "/srv/http/db/redis_acards_details"
from

Code: Select all

$redis->hSet('acards_details', 'snd_rpi_hifiberry_dacplus', '{"sysname":"snd_rpi_hifiberry_dacplus","extlabel":"HiFiBerry DAC+ (I²S)","mixer_numid":"1","mixer_control":"Digital","hwplatformid":"01","type":"i2s"}');

to

Code: Select all

$redis->hSet('acards_details', 'snd_rpi_hifiberry_dacplus', '{"sysname":"snd_rpi_hifiberry_dacplus","extlabel":"HiFiBerry DAC+ (I²S)","mixer_numid":"1","card_option":"format\t\"*:32:*\"","mixer_control":"Digital","hwplatformid":"01","type":"i2s"}');

- execute these commands:

Code: Select all

redis-cli del acards
php /srv/http/db/redis_acards_details

- reboot

hi,
i did that and now it plays ok

[pistollero]

buttttt i still cannot play spotify.... on spotify i ear the same evil white noise

[hondagx35]

Hi,

buttttt i still cannot play spotify.... on spotify i ear the same evil white noise

Spotify doesn't use MPD, so the changes are not valid for Spotify.

I m using hfberry dac pro i2s out to another dac

Please give us a bit more details on that.

????

Frank

[pistollero]

Do you have any patch so i can listen to spotify?