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--- electronic_music:toward_a_rasperry_pi_softsynth_performance_setup [2023/07/23 00:04] – [Install Raspberry Pi OS] mithat
+++ electronic_music:toward_a_rasperry_pi_softsynth_performance_setup [2023/07/23 03:38] (current) – [Configure audio] mithat
@@ Line 38: / Line 38: @@
 Next, let's get audio working.
 === I2S DAC ===
+== Hardware connections ==
+TBD
+== Software configuration ==
+Our cheap audio board doesn't have the EEPROM that "official" I2S audio boards have that tells the OS about themselves. So, we need to manually configure things via the ''/boot/config.txt'' and ''/etc/asound.conf'' files.
+Make a backup copy of both of these files so you can get back home if you get lost.
+<code bash>
+sudo mkdir -p /opt/backup-files
+sudo cp /boot/config.txt /opt/backup-files
+sudo cp /etc/asound.conf /opt/backup-files
+</code>
+I'm putting these into a directory under ''/opt'' because I don't know whether having extra cruft in ''/boot'' will bork things. If /boot doesn't care, then this should also work:
+<code bash>
+sudo cp /boot/config.txt /boot/config.txt.BAK
+sudo cp /etc/asound.conf /etc/asound.conf.BAK
+</code>
+The rest of this is from:
+  * Himbeer's [[https://blog.himbeer.me/2018/12/27/how-to-connect-a-pcm5102-i2s-dac-to-your-raspberry-pi/|"How to connect a PCM5102 I2S DAC to your Raspberry Pi"]]
+  * https://raspberrypi.stackexchange.com/questions/76188/how-to-make-pcm5102-dac-work-on-raspberry-pi-zerow
+  * https://www.hifiberry.com/docs/software/configuring-linux-3-18-x/
+  * https://www.mathworks.com/help/supportpkg/raspberrypi/ug/play-high-quality-audio-from-raspberry-pi-using-i2s-based-dac.html
 TBD