yamamoto2002 posted a comment on ticket #23

Hi, Windows XP has fundamental design flaw on its audio subsystems especially on sample rate determination algorithms and it cannot deliver consistent quality sound reliably with user mode API. it is abandoned and new Windows audio engine is introduced on Windows Vista, with new OS - application interface WASAPI . And PlayPcmWin uses WASAPI, therefore it does not run on Windows XP

Anonymous created ticket #23

Old Windows XP versions

yamamoto2002 committed [r1270] on Code

PlayPcmWin Shared mode SDM downsample status display fix

yamamoto2002 committed [r1269] on Code

Half band filter code cleanup

yamamoto2002 committed [r1268] on Code

halfband filter downsampler code cleanup

yamamoto2002 committed [r1267] on Code

delete stale code

yamamoto2002 committed [r1266] on Code

ConvertDsfToFlac

yamamoto2002 committed [r1265] on Code

DSF 5.6MHz support

yamamoto2002 committed [r1264] on Code

DsfToFlacConsole

yamamoto2002 committed [r1263] on Code

fix comment

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added comment

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comment updated

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simplify half band filter in/out param

yamamoto2002 committed [r1259] on Code

rename variables

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fix function name discrepancies

yamamoto2002 committed [r1257] on Code

fix function name discrepancies

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comment added

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rename queues

PlayPcmWin released /others/DsfToFlacGui100.zip

yamamoto2002 committed [r1254] on Code

document updated

yamamoto2002 committed [r1253] on Code

DsfToFlacGui version 1.0

yamamoto2002 committed [r1252] on Code

DsfToFlacConsole

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DsfToWav DoP wav generation

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added missing files

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WWOfflineResampler Enable Bilinear transform

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fix typo

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fix typo

PlayPcmWin released /others/WWOfflineResampler119.zip

yamamoto2002 committed [r1246] on Code

WWOfflineResampler 1.19

PlayPcmWin released /others/WWOfflineResampler118.zip

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WWOfflineResampler 1.18

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WWOfflineResampler 1.18

yamamoto2002 committed [r1243] on Code

WIP WWOfflineResampler testing

yamamoto2002 committed [r1242] on Code

WIP WWOfflineResampler Z-plane Pole-Zero graph plot

yamamoto2002 committed [r1241] on Code

WIP WWOfflineResampler

yamamoto2002 committed [r1240] on Code

debugging WWOffilneResampler

yamamoto2002 committed [r1239] on Code

WIP WWOfflineResampler

yamamoto2002 committed [r1238] on Code

WIP WWOfflineResampler high-prec conversion

yamamoto2002 committed [r1237] on Code

arbitrary precision Bilinear transform

yamamoto2002 committed [r1236] on Code

96bit precision Cauer IIR filter design

yamamoto2002 committed [r1235] on Code

Jenkins Traub RPoly doubleprec

yamamoto2002 committed [r1234] on Code

partial fraction decomposition

yamamoto2002 committed [r1233] on Code

polynomial long division, multiply, add

yamamoto2002 committed [r1232] on Code

pow efficiency fix

yamamoto2002 committed [r1231] on Code

natural logarithm performance problem fixed

yamamoto2002 committed [r1230] on Code

rational number test project fix

yamamoto2002 committed [r1229] on Code

arctan perf fix

yamamoto2002 committed [r1228] on Code

Arbitrary precision Cauer Elliptic filter design WIP

yamamoto2002 committed [r1227] on Code

Atan2(y,x), Pow(x,a), Hypergeometric Series 2F1(a,b;c;z), Inverse hyperbolic cosine, Inverse hyperbolic sine, Arithmetic geometric mean, Rational Complex

yamamoto2002 committed [r1226] on Code

artibrary precision Exp(x) Ln(x)

yamamoto2002 committed [r1225] on Code

arbitrary precision Pi Sin Cos Tan ArcTan

yamamoto2002 committed [r1224] on Code

sqrt bugfix

yamamoto2002 committed [r1223] on Code

-inf double to Rational conversion bugfix

yamamoto2002 committed [r1222] on Code

Rational::Sqrt arbitrary precision

yamamoto2002 committed [r1221] on Code

arctan 1 pi calculation

yamamoto2002 committed [r1220] on Code

Get exact rational characteristic polynomial from Frobenius normal form matrix

yamamoto2002 committed [r1219] on Code

Similarity transformation onto Frobenius canonical form from upper Hessenberg matrix

yamamoto2002 committed [r1218] on Code

Similarity transformation onto upper Hessenberg matrix

yamamoto2002 committed [r1217] on Code

Some performance optimizations

yamamoto2002 committed [r1216] on Code

fix build err

yamamoto2002 committed [r1215] on Code

repo sync

yamamoto2002 committed [r1214] on Code

typo

yamamoto2002 committed [r1213] on Code

added missing string.h

yamamoto2002 committed [r1212] on Code

Rational bignum

yamamoto2002 committed [r1211] on Code

WWRational Rational bignum arithmetic

yamamoto2002 committed [r1210] on Code

WWShowUSBDeviceTree shows SPDRP_LOCATION_PATHS

yamamoto2002 posted a comment on ticket #22

Maybe it is another glitch of operating system and it will be self healed with future Windows update... I'm waiting to fix the bug of query function of USB transfer speed :)

Anonymous posted a comment on ticket #22

thanks for your reply. It's strange, because if you use the windows 10 automatic resampler (ie. don't use the resampler object at all, just set the desired MF_MT_AUDIO_SAMPLES_PER_SECOND on the partial type fed to IMFSourceReader::SetCurrentMediaType to convert the output) then it works fine, so it's not the codecs, just the resampler object setup to add more to the confusion, on windows 7 where the resampler object is the ONLY way to downsample, everything works fine on the same media files that...

yamamoto2002 modified a wiki page

PlayPcmConsole

yamamoto2002 created a wiki page

PlayPcmConsole

PlayPcmWin released /others/PlayPcm107.zip

yamamoto2002 committed [r1209] on Code

PlayPcm Console version 1.0.7

yamamoto2002 posted a comment on ticket #22

I don't downsample PCM files to 10kHz so I don't know about your problem, sorry. I experienced the resampler glitch when 44.1kHz upsample to 768kHz and comversion process simply failed

Anonymous created ticket #22

rare resampling error

yamamoto2002 posted a comment on ticket #20

True. I'm fixing the bottleneck part. Not completed yet. There are a lot of workaround code for malformed WAV files on C# WAV file read program and I'd like to port it to native C++ code to keep compatibility and it takes some time...

Anonymous posted a comment on ticket #20

Thanks, but in my system there is no improvement.

yamamoto2002 committed [r1208] on Code

WIP: WAV file native read

yamamoto2002 committed [r1207] on Code

WIP: native WAV file read/conversion read performance fix

yamamoto2002 modified a wiki page

ChangelogJp

yamamoto2002 modified a wiki page

ChangelogJp

yamamoto2002 modified a wiki page

ChangelogJp

yamamoto2002 modified a wiki page

PlayPcmWinEn

yamamoto2002 modified a wiki page

PlayPcmWinEn

yamamoto2002 committed [r1206] on Code

fix crash on Windows 8

yamamoto2002 posted a comment on ticket #20

Implemented on PlayPcmWin 5.0.85 but read performance improvement is not enough. Found the read performance bottleneck is on C# marshaling part of the code...

yamamoto2002 modified a wiki page

ChangelogJp

yamamoto2002 committed [r1205] on Code

encoding fix

yamamoto2002 modified a wiki page

ChangelogJp

yamamoto2002 modified a wiki page

ChangelogEn

yamamoto2002 modified a wiki page

PlayPcmWinEn

PlayPcmWin released /PlayPcmWin/PlayPcmWin585x64Portable.zip

yamamoto2002 committed [r1204] on Code

PlayPcmWin5.0.85

yamamoto2002 committed [r1203] on Code

PlayPcmWin integrated Native Wav reader

yamamoto2002 committed [r1202] on Code

WIP fast WAV file read / AVX512 WAV sample format conversion

yamamoto2002 committed [r1201] on Code

WIP WWNativeSoundFileReader

Anonymous created ticket #21

Add a option to select system default audio device

yamamoto2002 committed [r1200]

WWNativeSoundFileReaderLib bugfix

yamamoto2002 committed [r1199]

WWNativeSoundFileReaderCs

Anonymous posted a comment on ticket #20

Wow, great!

yamamoto2002 committed [r1198]

WIP integrate WWNativeSoundFileReader to PPW