HeadMania.org Upsampler

1,000,000-taps audio processor in your pocket.

HeadMania UpSampler rebuilds your music with the same 64-bit filter engine as the desktop app, then feeds a USB DAC at the highest rate it accepts. On an M-series iPad, four million taps.

What you need

HeadMania UpSampler does not play through the iPhone or iPad speaker. It needs a real output:

• A USB-C or Lightning DAC — a plain USB-C-to-3.5 mm dongle counts, and so do wired headphones through one.
• Or a UPnP/DLNA network DAC or streamer on your Wi-Fi.

Bluetooth and AirPods are not supported. Room correction also needs a microphone.

To receive from a control point, both must be on the same Wi-Fi network, and you must allow Local Network access when iOS asks. On cellular alone nothing can discover it.

THREE WAYS TO FEED IT
- Your own files, stored on the device: FLAC, WAV, AIFF, ALAC, CAF, MP3
- Lossless internet radio, from stations whose operators have given written
permission to carry them
- UPnP/DLNA receiver — send to it from mconnect, JPLAY, Audirvana, or any control
point on your network

OUTPUT
PCM to 705.6 / 768 kHz over USB. (if the DAC supports it)

THE FILTERS
Six families, each at several kernel lengths, so you can hear the difference
between them rather than take it on trust:

- Organik — minimum phase, no pre-ringing
- Linear — symmetric, linear phase
- Mixed Phase — a defined position between the two
- Organik-Adaptive — minimum phase with an adaptive halfband stage
- Transient-Perfect — optimised for step response
- Kinetic — a polyphase design with its own character

Lengths run from 6,000 taps to 1,000,000 on iPhone, and to 4,000,000 on an
M-series iPad. The tap count shown for every preset is the measured length of the
kernel actually built, not a marketing number.

WHAT YOUR DEVICE CAN SUSTAIN
The longest kernels are demanding. If memory is short, or playback starts to
starve — sustained heat can do it — a lighter filter of the same family takes
over mid-track rather than dropping out, and the app says so. Your choice
returns at the next launch.

ROOM CORRECTION — NEW
Your room does more to the bass than any filter does. Play a test sweep, record
it with a microphone, and the app finds the resonances the room adds — where a
note hangs on and thickens into boom — then builds a few parametric cuts for
them. Each is aimed at the resonance itself, to stop it ringing rather than only
turn it down, and the app says filter by filter which of the two it managed.
Every filter can be adjusted by hand.

Bass only, and from one seat it cannot fix reflections — no equaliser can. No
decay filter yet. Without a microphone it can design from a room you describe.

Measuring is free, with the graph, the editor, and saving or exporting a room.
Hearing it applied is Signature Edition. The feature is new and says so in the app.

WHAT IS FREE, PERMANENTLY
Every filter below 500,000 taps — at every output rate your DAC supports. All
three input paths: local files, lossless radio, and UPnP receiving. Measuring
your room. No account, no time limit, nothing that stops working.

SIGNATURE EDITION
One optional purchase adds two things: the presets from 500,000 taps upward — the
500K trio, the 1M families, and on an M-series iPad the 2M and 4M ladders — and
hearing room correction applied. Output rates, every input path, and measuring
are free either way. One payment, no subscription.

A 30-day trial comes first. When it ends nothing you had before is taken away:
the selected filter moves to the deepest free preset in the same family and
playback continues.

PRIVACY
No account. No analytics, no crash reporting, no telemetry of any kind. The app
runs a local network listener so control points can find it, and connects out
only to radio stations you choose, the AutoEq database when you search it, and
the App Store. There is no HeadMania server, because there is nothing to send.

REQUIREMENTS
A USB DAC, and iOS 15 or later. This is a renderer and a player, not a music
service.