How to make a clean setup: assign the equalization curve to internal speaker, not just plug event.įor example, say I plug a USB audio device and play audio through it. A proof-of-concept script fiddling with files then calling pulseaudio-equalizer interface.applysettings could change the settings, but the GUI wouldn't be aware. Regarding changing the equalizer curve I could not find any documentation about pulseaudio-equalizer-gtk. Meager starting points: sound - How to automatically change volume level when un-/plugging headphones? - Ask Ubuntu Jack detection for audio : Blueprints : Ubuntu I could not find documentation on the web, plus the keyword "jack" returns results regarding the jack software suite, irrelevant here. Questions How to make a quick-and-dirty hack ? How to detect jack plug from a script ? Unplug the stereo, internal speaker get their correction curve. Plug the external stereo, the flat curve is selected. It would be much better to have the correct equalizer preset applied when un/plugging the 3.5mm jack. Improvement: not only auto-mute but auto-select eq curve When unplugging, internal speakers are automatically activated again.When plugging the 3.5mm jack to the external stereo, internal speakers are automatically muted and volume adjusted by the Ubuntu stack.a 3.5mm jack.Ĭurrent situation in practice: auto un/mute, good but insufficient another (much flatter curve, so disabling equalization is often acceptable) when an external stereo is plugged to e.g.one for laptop speakers (with wildly varying equalization curve).This means I have two equalization profiles: Remaining problem: equalization curve is output-dependentĮqualization values are attached to the whole chain, though generally only the speakers are a major source of unequal response. For example, I installed PulseAudio Equalizer from Web Upd8.įor good results, equalization values should be chosen based on measurements, but that's another story (I could do it with Ubuntu alone though it's tricky, ask me for details). First-step solution: equalizationĮqualizing provides a valuable workaround, dramatically improving sound quality with a one-time effort. Normal people say: "they sound very bad". Context/problem: bad speakersĪs many people know, laptop speakers have "highly unequal frequency response" as audio professional would say. The pedal runs on a 9V battery (included) or with an optional external power supply.The facts below come from experience with Ubuntu 13.10 on a 64-bit laptop. As a bonus, the Auto-scrolling function, which automatically scrolls between all four presets at an adjustable rate, creates unique and dramatic effects similar to sequencer or tremolo units. The relay-based true bypass footswitch provides improved reliability, remote switching capabilities, and a completely unaffected, hard wire signal in bypass mode. Use the clean boost for an entirely transparent volume increase or go further and give your amp the front-end push needed for an aggressive natural break-up. The Programmable EQ offers a substantial clean boost of up to 12dB. Run a MIDI signal from your POD, Eventide Space reverb, TC Nova System or any other MIDI compatible multi-effects unit and vastly expand your tone horizon within each preset. The pedal’s MIDI input also provides remote access to user presets or engages/disengages the effect. Simply hold down the footswitch and let the pedal scroll through each preset at an adjustable rate – release to engage. Each preset is easily accessible via the hands-free footswitch scrolling function. Once you’ve dialed in the desired guitar or bass tone, save it in one of four programmable user presets. Engaging the Octave Extend systematically optimizes the pedal’s frequency spectrum to accommodate the specific frequency range of the bass. The Programmable EQ packs plus or minus 18dB of range over seven frequency bands, plus an additional frequency band at 62Hz, accessible via the Octave Extend function. Whatever your instrument, playing style, or genre, the Source Audio Programmable EQ is the essential tone-sculpting tool for your live rig. This compact, rugged, cast aluminum stompbox provides quick, hands-free access to four different user programmed EQ settings. The Source Audio Programmable EQ is a thoroughly modern and highly streamlined upgrade to traditional equalizer pedals.
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