Differences

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--- doc:appunti:hardware:raspberrypi_nas_audio [2021/03/22 10:27] – [Raspberry Pi NAS: The audio subsystem] niccolo
+++ doc:appunti:hardware:raspberrypi_nas_audio [2025/10/13 09:16] (current) – [Digital audio through HDMI] niccolo
@@ Line 17: / Line 17: @@
 {{ .:raspberrypi:raspberry-pi-hdmi-video-audio-cable.jpg?180|HDMI video and audio cable}}
-This is the first natuarl choiche, at least when watching videos using Kodi. I use an old **Raspberry Pi 3** as a Kodi media center, connected to an HDMI monitor capable of audio too; the sound quality is acceptable and it is aligned to the medium quality of the speakers inside the monitor. Unfortunately I discovered that the **Raspberry Pi 4** has a **worse audio quality** than the Pi 3: I ear continously **pops, clicks and little gaps in the music**. I tried to swap the power supply and the HDMI cable with better quality ones, but **the problem remains**. It seems that the problem is not hardware related, but it is introduced when I add Pulseaudio in the software stack. If I select direct Raspberry **PI:HDMI** as sound device in Kodi, the audio **playback is OK**.
+This is the first natural choiche, at least when watching videos using Kodi. I use an old **Raspberry Pi 3** as a Kodi media center, connected to an HDMI monitor capable of audio too; the sound quality is acceptable and it is aligned to the medium quality of the speakers inside the monitor. Unfortunately I discovered that the **Raspberry Pi 4** has a **worse audio quality** than the Pi 3: I ear continously **pops, clicks and little gaps in the music**. I tried to swap the power supply and the HDMI cable with better quality ones, but **the problem remains**. It seems that the problem is not hardware related, but it is introduced when I add Pulseaudio in the software stack. If I select direct Raspberry **PI:HDMI** as sound device in Kodi, the audio **playback is OK**.
 I prefer to avoid the HDMI audio output mainly because the audio of the HDMI monitor is of poor quality, but another problem is that if **the monitor goes into standby** (as Kodi does, when you don't play anything), also **the audio goes standby**. In this condition even the Music Player Damon cannot play to HDMI.