www.audiosignal.co.uk

What’s new

 

Items added to this site since 1 August 2003

9/8/03

ArmGeometer v1 pickup arm/cartridge alignment software

Freeware

12/8/03

Gerzon Archive – a collection of magazine articles by Michael Gerzon

Gerzon archive

12/8/03

‘Why do equalisers sound different?’

Gerzon archive

12/8/03

‘Digital room equalisation’

Gerzon archive

13/8/03

‘Surround sound from 2-channel stereo’

Gerzon archive

13/8/03

‘A year of surround-sound’

Gerzon archive

15/8/03

Diagrams added to ‘A year of surround-sound’

Gerzon archive

15/8/03

Correction to AG_Readme.pdf (ArmGeometer information file)

Freeware

28/8/03

ArmGeometer v1.01 – data.txt and graph.txt output files are now closed immediately they have been written to allow them to be accessed while ArmGeometer is still running or to be over-written by a new calculation

Freeware

29/8/03

AddDistortion software for imposing static nonlinearity on a target Wave file

Freeware

30/8/03

Clarification of the distortion data generated by ArmGeometer added to AG_Readme.pdf (ArmGeometer information file)

Freeware

21/9/03

AddDistortion withdrawn pending an important amendment

Freeware

10/12/03

FaulknerDownsample v1 – downsamples 24-bit packed integer Wave files using Tony Faulkner’s adjacent sample averaging technique

Freeware

15/2/04

Gramophone’s Michael Gerzon obituary added plus a link to the Guardian’s obit on Martin Leese’s Ambisonic FAQ site

Gerzon archive

16/2/04

‘Surround-sound psychoacoustics’

Gerzon archive

17/2/04

‘What’s wrong with quadraphonics’

Gerzon archive

16/4/04

An index of my Hi-Fi News contributions

HFN index

7/7/04

CravenFilters v1 – applies Peter Craven’s example Wilkinson filters to 24-bit packed integer Wave files of 96 or 192kHz sampling rate

Freeware

4/11/04

AddLTEDistortion v1 – simulates lateral tracking error distortion in vinyl disc replay

Freeware

7/11/04

Note added to AddLTEDistortion readme file about aliasing distortion

Freeware

2/1/05

FlashPaper documents added to Gerzon Archive in place of HTMLs

Gerzon archive

2/1/05

‘Three channels: the future of stereo?’

Gerzon archive

3/1/05

ExtractQuantisationError v1 – extracts and amplifies the quantisation error that results from truncating a 24- or 32-bit mono Wave file to 16-bit resolution

Freeware

4/1/05

‘The gentle art of digital squashing’

Gerzon archive

6/1/05

‘Fixing it outside the mix’

Gerzon archive

10/1/05

‘Stereo shuffling: new approach – old technique’

Gerzon archive

12/1/05

‘Minimising Print-through’

Gerzon archive

29/1/05

AddDistortion v2, a replacement for the removed v1 – adds a user specified pattern of static nonlinear distortion, 2nd- to 20th-order, to any mono 16/44.1 Wave file of up to 60 seconds in length

Freeware

22/2/05

Correction to the Table in ‘Stereo shuffling: new approach – old technique’

Gerzon archive

3/5/05

‘Stabilising stereo images’

Gerzon archive

27/2/06

ChannelIsolate and ChannelCombine – utilities for splitting a stereo Wave file into two mono files or combining two mono files into a stereo file

Freeware

29/4/06

Wave Files page added, containing impulse responses from my measurements of valve amplifier microphony

Wave Files

29/4/06

WaveStats upgraded to v1.1, with WaveSplit utility added

Freeware

3/5/06

AddDistortion v2.1 replaces v2

Freeware

25/2/07

ITUMultichannelLayoutAssistant – a utility which assists with determining

5-channel speaker positions consistent with the ITU standard

Freeware

27/2/07

Chesky6LayoutAssistant – a utility which assists with determining speaker positions consistent with Chesky Records’ 6.0 layout

Freeware

7/3/07

ChangeSampleRate – a utility which alters the sampling rate in a Wave file header to a user-specified figure

Freeware

7/3/07

SurroundDelayCalculator – a utility which calculates the electronic delays required for each channel of an ITU 5-channel speaker layout

Freeware

3/8/07

DynamicsAnalysis – a utility which analyses and graphs the musical dynamics

in mono or stereo WAVE_FORMAT Wave files of 16-bit, 24-bit, 32-bit integer

or 32-bit float formats

Freeware

14/6/08

ClippingSimulator – a utility which simulates hard clipping of a source Wave file by generating output files clipped at 3, 6, 9, 12, 15 and 18dB below peak level

Freeware

17/2/09

RIAAPhaseError – a utility which simulates replay amplitude and phase errors caused by modification of the RIAA record characteristic at ultrasonic frequencies

Freeware

 

 

 

 

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