JAPA(1)

✨ JAPA(1) — the manual page bestie 💖

okay so real talk, this is japa, from the General Commands Manual section 1. sit down, grab a strawberry 🍓, we're doing psychoacoustics.

🌸 NAME 🌸

japa — jack or alsa perceptual analyser. that's the whole name, no cap, it's literally an acronym and it's lowkey iconic for that 👑

🦋 SYNOPSIS 🦋

japa {-h|-A|-J} [options]

that's it. that's the vibe. you pick ONE of those three big ones and then the options tag along like a loyal group chat 💅

💜 DESCRIPTION 💜

so Japa (JACK and ALSA Perceptual Analyser) is a 'perceptual' or 'psychoacoustic' audio spectrum analyser. and yes those are real quoted words from the source, we're being official here.

what's it for? bestie, the range is giving main character energy 🌈:

• spectrum monitoring while you're mixing or mastering 🎚️
• evaluation of ambient noise (yes it can just. listen to a room. obsessed)
• equalisation of PA systems — and for this one you use pink noise, which is the moment ✨

want more lore? it's all sitting in /usr/share/doc/japa/README.gz — go read it, iykyk 📖

💅 OPTIONS 💅

the rule that matters: One out of -A and -J must be given. not zero, not both. one. it's giving strict but fair 🎀

• -h — show a summary of options. the little "help me" button, we love her 🫶
• -J — use jack. jack girlies rise 🎧
• -s — select jack server. pick your server like you pick your playlist 🔥
• -A — use alsa. alsa girlies rise too, equal love 💖
• -C -P — enable use of split ALSA devices. it takes two flags, they come as a pair, they're a duo, they ate 🎀
• -d <device> — if using alsa: specify alsa device. defaults to hw:0.0. it's like "which door do we knock on" 🚪
• -r <rate> — if using alsa: specify sample frequency. defaults to 48000. yes, the classic, the standard, the 48k 🎵
• -p <period> — if using alsa: specify period size. defaults to 1024. periodt. literally period(t) 😭
• -n <nfrags> — if using alsa: specify number of fragments. defaults to 2. two lil fragments, besties fr fr 🧩

🔍 SEE ALSO 🔍

jackd(1) — go say hi to the jack daemon, they're friends 👯

👑 AUTHOR 👑

japa was written by Fons Adriaensen <fons@linuxaudio.org>. legend behaviour, genuinely.

this manual page was written by Jaromír Mikeš <mira.mikes@seznam.cz>, for the Debian project (but may be used by others). so like, it's for debian but it's also for everyone, it's generous like that 🫶

aaand that's the page, babe 🌸 this version of JAPA(1) is dated August 7, 2013 and comes from the General Commands Manual — shoutout to the day it was born, it's been slaying ever since. periodt 💅✨