Product support.

Qurvature shapes frequency balance with 31-band equalisation and per-band Dynamic EQ. Pulse shapes dynamics with compression, detector controls and optional character.

Both desktop products are for Windows 10/11 (x64).

Qurvature is £29 and Pulse is £19. See each product page for availability.

Yes. Qurvature and Pulse both include a 30-day free trial. Download the Windows installer from the software downloads page.

Yes. Buy Now opens a product purchase page, followed by Square-hosted checkout. Qurvature is £29 and Pulse is £19. Read the product’s licence and download information before paying.

Qurvature and Pulse desktop processing attaches an audio effect to a selected Windows audio endpoint, rather than requiring a virtual audio device.

Both desktop products support selecting a Windows input or playback endpoint. Check that the endpoint selected in the application is the one your audio is using.

A separate Windows x64 VST3 edition of Qurvature is described on its product page. It runs inside a compatible DAW.

The Pulse product described here is a Windows audio-device processor. A Pulse VST3 edition is not currently listed.

Email info@satyastudios.uk with the product name, version, Windows version, selected device and a description of what happened. Include screenshots where useful; never send passwords or payment details.

Qurvature has 31 bands, with independent frequency, gain and Q controls.

Graphic faders offer a familiar bank of band-level controls. Parametric mode lets you move bands freely and adjust their frequency and Q.

Q controls the width of an EQ band. A higher Q focuses the adjustment on a narrower frequency region; a lower Q makes it broader.

Band frequency spans 20 Hz–20 kHz, subject to sample-rate limits. Gain ranges are selectable at ±12, ±18 or ±24 dB, and Q spans 0.1–10.

Dynamic EQ changes the response of an individual band according to signal level. Each band can have its own threshold, ratio, maximum change, attack and release.

Cut applies level-dependent attenuation in the selected frequency region. Boost applies level-dependent gain. Use the maximum-change control to limit the amount.

Threshold is −72–0 dBFS, ratio is 1:1–20:1 and maximum change is 0–12 dB. Attack is 0.1–200 ms and release is 5–2,000 ms.

Yes. Qurvature supports linked stereo, independent left/right settings and Mid/Side processing.

Mid represents the shared centre information and Side represents stereo differences. Separate EQ can help shape the centre and width-related frequency balance; check the result in mono as well.

Warmth adds analogue-inspired colour. Drive controls intensity, Tone adjusts its balance and Mix blends the effect. The Warmth stage uses 4× oversampling.

Drive spans 0–18 dB, Tone spans −100–100% and Mix spans 0–100%.

Yes. The high-pass range is 10 Hz–20 kHz and the low-pass range is 20 Hz–24 kHz, with nominal slopes of 6–48 dB per octave. Available frequencies depend on sample rate.

It provides live input/output spectrum analysis alongside the EQ response so you can compare frequency content with your adjustments.

Use the A/B snapshots to compare settings and bypass to compare processing with the unprocessed signal. The desktop edition also includes RMS comparison.

The switchable lookahead output limiter includes input gain, a true-peak ceiling, release and 1×/4× modes. Overload warnings remain visible before compensation.

The documented fixed processing delay is 256 samples, including bypass. Device and host buffering add their own delay.

The desktop edition includes a desktop preset library, separate LUFS and test-signal windows, RMS comparison and tray integration. Those separate desktop tools are not included in the VST3 build.

Yes. Its listed features include host automation, mono/stereo buses, project-state recall and Cubase Quick Controls.

No. Windows endpoint processing does not cover every ASIO, exclusive/raw or protected path. If your audio is unchanged, check the endpoint and the audio path used by the playback application.

The desktop edition has PC-specific licensing and a documented 30-day trial. Desktop licensing does not apply to the separate VST3 edition; do not assume it activates that edition.

Pulse is a dynamics processor for shaping punch, controlling peaks and smoothing levels on a selected Windows audio device.

Threshold sets the level where compression begins. Ratio controls how strongly levels above that point are compressed. Pulse offers −60–0 dB threshold and ratios from 1:1 to 20:1.

Attack sets how quickly compression responds and release sets how quickly it eases back. Pulse offers 0.1–100 ms attack and 10–2,000 ms release.

Yes. Automatic release is available when you want the processor to manage release behaviour rather than rely only on a manually chosen release time.

Knee changes how gradually compression begins around the threshold. Pulse provides a continuous 0–24 dB range, from hard to soft.

Hold controls how long gain reduction is retained before recovery. Lookahead lets detection anticipate upcoming peaks. Hold spans 0–500 ms and Lookahead spans 0–20 ms.

Yes. The 0–100% Mix control blends processed and unprocessed sound. Lower settings retain more of the unprocessed signal.

The Output control spans −24 to +24 dB. Watch the output meters when adding gain.

Yes. Optional estimated automatic makeup gain is available. It is an estimate, so compare by ear and check the output meters rather than assuming perfect loudness matching.

Peak detection responds to peaks, while RMS detection follows an averaged measure of level. RMS Time controls the averaging interval in RMS mode.

RMS Time is disabled in Peak mode because it applies to RMS detection. Switch to RMS to use its 1–100 ms range.

Stereo Link controls how strongly the channels share detection behaviour, from 0–100%. It lets you balance independent response against linked stereo control.

Yes. Pulse offers Stereo and Mid/Side routing, with independent Mid/Side detectors and shared controls.

The internal high-pass and low-pass filters shape the detector signal that drives compression. They help focus what the compressor responds to rather than acting as the main programme EQ.

Use Sidechain Listen to audition it. Switch Listen off when returning to normal monitoring.

The high-pass and low-pass controls span 20 Hz–20 kHz, limited where necessary by sample rate. Filtering is switchable.

Clean is intended for transparent level control. Character adds analogue-inspired colour with an adjustable 0–100% amount.

Measured RMS matching attenuates the louder reference for compression/bypass comparisons rather than adding gain. Overload indications remain visible before that comparison attenuation.

The graphs show live input/output levels and a separate gain-reduction history. Dynamics display ranges are selectable at −60, −36, −24 or −12 dBFS to 0.

It plots the input/output relationship and updates when threshold, ratio or knee changes. A moving input marker changes from cyan below threshold to amber above it.

Use Reset Meters. This clears the resettable holds and clip indications so you can observe a fresh section of audio.

Pulse has a fixed 20 ms processing delay, including bypass. Device buffering can add further delay.

Yes. Background WAV processing accepts mono/stereo PCM16 or float32 WAV input and exports float32 WAV with processing latency trimmed. It protects the source from being overwritten.

Drag a knob or use the mouse wheel. Shift-drag gives finer control, and double-clicking allows numerical entry.

Pulse provides Undo and Redo, Ctrl+Z/Ctrl+Y shortcuts, A/B settings banks and bank swap. It also supports saving/loading presets and recalling the previous session.

Pulse distinguishes attached, waiting, bypassed and processing states. Processing depends on a changing audio-engine heartbeat; a selected endpoint alone does not guarantee active audio is being processed.

Effect removal restores the backed-up endpoint settings. Pulse also includes device rescanning and reconnection handling.

No. Purchase first, then download and install. For Qurvature, copy the Installation ID from Settings → Licensing and email it with your Square receipt reference to info@satyastudios.uk.

No. Licence keys are generated and emailed manually after payment is checked. The download is available immediately; an automatic payment receipt is not a licence key.

Open Software Downloads for the Windows installers and activation instructions. Both products include a 30-day trial and an Installation ID under Settings → Licensing.