Show pageOld revisionsBacklinksAdd to bookExport to PDFBack to top This page is read only. You can view the source, but not change it. Ask your administrator if you think this is wrong. ====== DAC ====== * [[http://r3dux.org/2013/12/how-to-enable-high-quality-audio-in-linux/|interesting]] <code> aplay -v -D plughw:1,0 test192.wav </code> <code> aplay -l [-L] </code> <code> flac -d 01-Wednesday\ Night\ Prayer\ Meeting.flac -c | aplay --device=hw:1,0 </code> <code> cat /proc/asound/card1/pcm0p/sub0/* </code> <code> pacmd list-sinks </code> <code> pactl list short sinks </code> <code> for card in `aplay -L | grep "CARD=DAC"`; do echo ./hw_params $card; ./hw_params $card | grep Sample; sleep 1; done </code> ===== E5 ===== <code> cat /proc/asound/card3/stream0 Creative Technology Ltd Sound Blaster E5 at usb-0000:02:00.0-1.1.2, high speed : USB Audio Playback: Status: Stop Interface 1 Altset 1 Format: S24_3LE Channels: 2 Endpoint: 1 OUT (ASYNC) Rates: 44100, 48000, 88200, 96000 Data packet interval: 500 us </code> ===== REGA ===== Usando il comando aplay -l identificare la scheda con SPDIF, ad esempio card1 Trovare il nome della scheda <code> cat /proc/asound/card1/id ... </code> Creare ~/.asoundrc mettendo al posto di DAC il nome trovato nel punto precedente <code> pcm.DAC { type hw card "DAC" } ctl.!default { type hw card "DAC" } pcm.!default { type plug slave { pcm "DAC" rate "unchanged" } } </code> suonare con <code> aplay file </code> verificare con <code> watch cat /proc/asound/card1/pcm3p/sub0/hw_params </code> <code> Burr-Brown from TI USB Audio DAC at usb-0000:02:00.0-1.1.4.4, full speed : USB Audio Playback: Status: Stop Interface 1 Altset 1 Format: S16_LE Channels: 2 Endpoint: 2 OUT (ADAPTIVE) Rates: 32000, 44100, 48000 Interface 1 Altset 2 Format: S16_LE Channels: 1 Endpoint: 2 OUT (ADAPTIVE) Rates: 32000, 44100, 48000 </code> ===== hifiberry ===== ==== rasberry ==== /boot/config.txt <code> dtparam=i2c_arm=on #dtparam=audio=on dtoverlay=hifiberry-digi </code> /etc/asound.conf <code> pcm.!default { type hw card 0 } ctl.!default { type hw card 0 } </code> tips/dac.txt Last modified: 2016/07/27 20:00by scipio