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content/docs/computer/pro-audio.md
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@ -333,7 +333,7 @@ or set the environment variable `PIPEWIRE_QUANTUM=128/48000` to start the applic
#### Systemic latency
For recording overdubs in Ardour the systemic latency[^14] must be set. It adds to the round-trip time (RTT) of an audio interface and can be measured through a loopback. Using a cable to feed the output to the input of the audio interface I can create a loopback to measure RTT and systemic latency.
For recording overdubs in a [#DAW](#daw) the systemic latency[^13] must be set. It adds to the round-trip time (RTT) of an audio interface and can be measured through a loopback. Using a cable to feed the output to the input of the audio interface I can create a loopback to measure RTT and systemic latency.
First close Ardour opened in the previous section for [#Quantum evaluation](#quantum-evaluation), and use the pw-metadata command to force the previously evaluated quantum size as parameter. For exmaple, I use this command:
@ -424,7 +424,7 @@ In my case it reports 203 frames ($128 + 75 = 203$) per playback and capture dev
## DAW
A Digital Audio Workstation[^13] is primarily used to record, edit, and mix music. It integrates a lot of features, such as a multi-track recorder and digital mixing console, to provide a professional audio studio environment. I use [Ardour](https://ardour.org) provided by the [ardour](https://archlinux.org/packages/?name=ardour) package, which is installed by:
A Digital Audio Workstation[^14] is primarily used to record, edit, and mix music. It integrates a lot of features, such as a multi-track recorder and digital mixing console, to provide a professional audio studio environment. I use [Ardour](https://ardour.org) provided by the [ardour](https://archlinux.org/packages/?name=ardour) package, which is installed by:
```bash
sudo pacman -S ardour
@ -522,7 +522,7 @@ In a mixing only setup I just go with PipeWire's defaults and if I don't have my
### Plugins
This is a comprehensive topic by itself and I won't go into the details. I rather list my favorite LV2[^16] plugins with a description based on how I use them:
This is a comprehensive topic by itself and I won't go into the details. I rather list my favorite LV2[^15] plugins with a description based on how I use them:
| Package name | Description | More info |
|-----------------|--------------------------|------------------------------|
@ -563,13 +563,13 @@ sudo pacman -Sg lv2-plugins
### Samples
An alternative to synthesizing sounds is to use sampling[^17]. I use [CC0](https://creativecommons.org/publicdomain/zero/1.0/) (public domain) samples for the following instruments:
An alternative to synthesizing sounds is to use sampling[^16]. I use [CC0](https://creativecommons.org/publicdomain/zero/1.0/) (public domain) samples for the following instruments:
- [#Drums](#drums)
- [#Piano](#piano)
- [#Orchestra](#orchestra)
After installation I can open their SFZ[^18] files using the sfizz-lv2 plugin installed in the [#Plugins](#plugins) section before.
After installation I can open their SFZ[^17] files using the sfizz-lv2 plugin installed in the [#Plugins](#plugins) section before.
#### Drums
@ -583,7 +583,7 @@ Alternatively, download an [archive of the master](https://github.com/michaelwil
#### Piano
The [Salamander Grand Piano](https://freepats.zenvoid.org/Piano/acoustic-grand-piano.html#SalamanderGrandPiano) provides a realistic piano sound and is public domain as of 2022-03-04[^19]. I prefer the sound bank containing the samples in FLAC format to save disk space. I use `curl` to download the archive using the current [direct link](https://freepats.zenvoid.org/Piano/SalamanderGrandPiano/SalamanderGrandPiano-SFZ+FLAC-V3+20200602.tar.gz) (as of writing this guide):
The [Salamander Grand Piano](https://freepats.zenvoid.org/Piano/acoustic-grand-piano.html#SalamanderGrandPiano) provides a realistic piano sound and is public domain as of 2022-03-04[^18]. I prefer the sound bank containing the samples in FLAC format to save disk space. I use `curl` to download the archive using the current [direct link](https://freepats.zenvoid.org/Piano/SalamanderGrandPiano/SalamanderGrandPiano-SFZ+FLAC-V3+20200602.tar.gz) (as of writing this guide):
```bash
curl --output SalamanderGrandPiano-SFZ+FLAC-V3+20200602.tar.gz https://freepats.zenvoid.org/Piano/SalamanderGrandPiano/SalamanderGrandPiano-SFZ+FLAC-V3+20200602.tar.gz
@ -625,10 +625,9 @@ To conclude this guide, remember to keep evaluating and improving your setup. Bu
[^10]: [What is the Pro Audio Profile](https://gitlab.freedesktop.org/pipewire/pipewire/-/wikis/FAQ#what-is-the-pro-audio-profile) in the PipeWire wiki
[^11]: [FramesPeriods](https://www.alsa-project.org/main/index.php/FramesPeriods) in the ALSA wiki
[^12]: ALSA properties section in the [pipewire-devices](https://docs.pipewire.org/page_man_pipewire-devices_7.html#device-param__alsa_properties) man page
[^13]: [Digital audio workstation](https://en.wikipedia.org/wiki/Digital_audio_workstation) in the Wikipedia
[^14]: [Systemic latency configuration](https://discourse.ardour.org/t/how-does-pipewire-perform-with-ardour/107381/12) by Robin Gareus
[^15]: [The SPA-JSON format](https://pipewire.pages.freedesktop.org/wireplumber/daemon/configuration/conf_file.html#the-spa-json-format) in the PipeWire documentation
[^16]: [Project site](https://lv2plug.in/) of the LV2 plugin standard
[^17]: [Sampling (music)](https://en.wikipedia.org/wiki/Sampling_(music)) in the Wikipedia
[^18]: [SFZ (file format)](https://en.wikipedia.org/wiki/SFZ_(file_format)) in the Wikipedia
[^19]: [Blog post](https://rytmenpinne.wordpress.com/2022/03/04/good-news-everyone/) by Alexander "rytmenpinne" Holm
[^13]: [Systemic latency configuration](https://discourse.ardour.org/t/how-does-pipewire-perform-with-ardour/107381/12) by Robin Gareus
[^14]: [Digital audio workstation](https://en.wikipedia.org/wiki/Digital_audio_workstation) in the Wikipedia
[^15]: [Project site](https://lv2plug.in/) of the LV2 plugin standard
[^16]: [Sampling (music)](https://en.wikipedia.org/wiki/Sampling_(music)) in the Wikipedia
[^17]: [SFZ (file format)](https://en.wikipedia.org/wiki/SFZ_(file_format)) in the Wikipedia
[^18]: [Blog post](https://rytmenpinne.wordpress.com/2022/03/04/good-news-everyone/) by Alexander "rytmenpinne" Holm