doc:appunti:hardware:raspberrypi_nas_audio
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doc:appunti:hardware:raspberrypi_nas_audio [2021/03/10 15:37] – created niccolo | doc:appunti:hardware:raspberrypi_nas_audio [2021/03/22 09:27] (current) – [Raspberry Pi NAS: The audio subsystem] niccolo | ||
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====== Raspberry Pi NAS: The audio subsystem ====== | ====== Raspberry Pi NAS: The audio subsystem ====== | ||
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+ | This page is about configuring the **audio subsystem** on a Raspberry Pi installed with RaspiOS, to be used as NAS and mediacenter. See the main index at **[[raspberrypi_nas]]**. | ||
I want to use **Kodi** for **HDMI video and audio** playback, but I want also occasionally to play music using **Music Player Daemon**, routing the audio to an external amplifier which has **RCA stereo connectors**. Once the cables are connected, it is also desiderable to play Kodi videos routing video to **HDMI monitor** and routing audio to the **stereo amplifier**. | I want to use **Kodi** for **HDMI video and audio** playback, but I want also occasionally to play music using **Music Player Daemon**, routing the audio to an external amplifier which has **RCA stereo connectors**. Once the cables are connected, it is also desiderable to play Kodi videos routing video to **HDMI monitor** and routing audio to the **stereo amplifier**. | ||
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For the **hardware** part, you can use the **digital HDMI audio** or the **analog 3.5 mm jack** (which carries video and stereo audio signals over a CTIA 4 poles connector). For a **better audio quality** you have to connect and **audio hat** or an external **USB audio sound card**; as explained below the integrated audio devices are of unacceptable quality also for an occasional user, let alone an audiophile one! | For the **hardware** part, you can use the **digital HDMI audio** or the **analog 3.5 mm jack** (which carries video and stereo audio signals over a CTIA 4 poles connector). For a **better audio quality** you have to connect and **audio hat** or an external **USB audio sound card**; as explained below the integrated audio devices are of unacceptable quality also for an occasional user, let alone an audiophile one! | ||
- | ===== Audio hardware: Raspberry | + | ===== Pi 4 audio hardware |
+ | |||
+ | There are several possibilities of getting audio from a Raspberry Pi 4. | ||
==== Digital audio through HDMI ==== | ==== Digital audio through HDMI ==== | ||
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==== Using an externa USB sound card ==== | ==== Using an externa USB sound card ==== | ||
+ | {{ .: | ||
For a decent audio quality, I decided that the only acceptable solution is to relay on an external USB sound card connected to my stereo amplifier. I choosed a model based on the **C-Media Electronics** chip (USB Id **0d8c: | For a decent audio quality, I decided that the only acceptable solution is to relay on an external USB sound card connected to my stereo amplifier. I choosed a model based on the **C-Media Electronics** chip (USB Id **0d8c: | ||
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* **[[https:// | * **[[https:// | ||
- | ==== Use PulseAudio with Kodi ==== | + | ===== Use PulseAudio with Kodi ===== |
With the PulseAudio running as a system service, you can start Kodi and go to **Settings** => **System** => **Audio** = **Audio output device** and select **PULSE: Default**. Here you can also switch between HDMI and stereo jack: | With the PulseAudio running as a system service, you can start Kodi and go to **Settings** => **System** => **Audio** = **Audio output device** and select **PULSE: Default**. Here you can also switch between HDMI and stereo jack: | ||
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The **mpd** user must be addedd to the relevant groups: **audio**, **pulse** and **pulse-access**. | The **mpd** user must be addedd to the relevant groups: **audio**, **pulse** and **pulse-access**. | ||
+ | ===== Web References ===== | ||
+ | |||
+ | * **[[https:// | ||
+ | * **[[https:// | ||
doc/appunti/hardware/raspberrypi_nas_audio.txt · Last modified: 2021/03/22 09:27 by niccolo