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THE JOURNEY THROUGH TIME

Explore Black History

Explore the people, places, events, achievements, struggles and stories that shaped our journey.

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Civil Rights

Movements, leaders, victories and the continuing fight for equality.

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Black Inventors

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Sports

Pioneers, champions, Negro Leagues, records, activism and excellence.

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People

Meet the people whose lives, choices and achievements shaped the journey.

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Places

Black towns, communities, institutions and places where history happened.

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Events

Moments that changed communities, movements, institutions and the nation.

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MY'STORY

The MOVE Fire

This is a personal recollection on the Move fire on May 13, 1985 Philadelphia police fired thousands of rounds at the MOVE house, city officials approved dropping an explosive device on the roof, the resulting fire was allowed to burn, 11 people—including five children—died, and 61 homes were destroyed. Philadelphia City Council later called it a “brutal attack carried out by the City of Philadelphia on its own citizens” and acknowledged that no individual faced criminal consequences for the bombing. One timeline correction worth preserving for the BHP record: the major previous MOVE-police confrontation was August 8, 1978, about seven years before the bombing, not a year or two earlier. Officer James Ramp was killed, other police and firefighters were wounded, nine MOVE members were later convicted, and television cameras recorded police beating Delbert Africa during his arrest. The 1985 MOVE Commission later specifically criticized city planners for failing to adequately use lessons from that 1978 confrontation. And that actually strengthens the point you’re making: 1985 did not happen without precedent or institutional memory. There had already been a deadly confrontation with MOVE, years of conflict, negotiations and police involvement before Osage Avenue.

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BLACK FACTS
The Truths They Never Taught You...

Wilmington 1898 — An American Coup

Wilmington, North Carolina once had a thriving Black middle class and an elected interracial government. In 1898 white supremacists used violence to overthrow that government, kill Black residents and drive many others from the city.

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Wikipedia

Portable Sound Format

The Portable Sound Format (PSF) is a music file format ripped directly from video games from a variety of video game consoles. The format was originally used for PlayStation video games, but has since been adapted to support other systems.

The PSF format was publicly documented by Neill Corlett in 2003, who also wrote a Winamp plug-in named "Highly Experimental" that plays PSF1 and PSF2 files.

Generally, PSF files contain a number of samples and a music sequencer player program. This takes far less space than an equivalent streamed format of the same music (WAV, MP3) while still sounding high fidelity. Background music stored in PSF files can usually be looped forever, as the sequencer handles its own loop points.

Several PSF sub-formats also have a miniPSF/PSFlib capability, wherein data used by multiple tracks is stored only once in an accompanying PSFlib file. Further differences are stored in a miniPSF file, which can be compressed via zlib to further increase storage efficiency.

A PSF2 file is the PlayStation 2 equivalent of a PSF. PSF2 is internally structured as a file system, rather than PSF, which is a single PS executable. PSF's native sample rate is 44,100 Hz, while PSF2's is 48,000 Hz. Rates may vary from 8,000 Hz to 96,000 Hz.

Both PSF and PSF2 files contain a header which specifies the type of video game system the file contains data for, and an optional set of tags at the end which can give detailed information such as game name, artist and length.

PSF sub-formats

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PSF initially stood only for "PlayStation Sound Format", but with the addition of the PSF2, SSF (Sega Saturn Sound Format), DSF (Dreamcast Sound Format), USF (Nintendo Ultra 64 Sound Format), QSF (Capcom Q-Sound Format), GSF (Game Boy Advance Sound Format), and 2SF (Nintendo DS Sound Format) sub-formats, the more generic backronym "Portable Sound Format" was developed. As a result, PSF and PSF1 interchangeably refer to PlayStation sound data files.

GSF

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GBA Sound Format (GSF) is an emulated Game Boy Advance audio format developed by Caitsith2 and Zoopd. The basic GSF file structure is a sub-format of PSF.

GSF players emulate the files as sound-only Game Boy Advance ROMs, and as such can be processor intensive when compared to mainstream audio formats.

USF

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Nintendo Ultra64 Sound Format (USF) is a file format by Adam Gashlin that contains the sound-generating code from a Nintendo 64 video game. The basic USF file structure is a sub-format of PSF.

References

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  • Chang, KyuSik; Kim, GyuBeom; Kim, TaeYong (2007). "Video Game Console Audio: Evolution and Future Trends". Computer Graphics, Imaging and Visualisation (CGIV 2007). pp. 97–102. doi:10.1109/CGIV.2007.87. ISBN 978-0-7695-2928-8. S2CID 15780039.
[edit]

Players and plug-ins

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  • Audio Overload Mac/Windows/Linux chiptune player that supports 33 different music formats including PSF1 and PSF2.
  • Audacious Media Player Linux player that supports playback of PSF1 and PSF2 via plug-in.
  • Chipamp - Winamp plug-in bundle compiled by OverClocked ReMix allowing playback of over 40 chiptune and tracker formats
  • UPSE123 - UNIX PlayStation Sound Emulator, PlayStation sound emulator which concentrates on sound correctness. It plays PSF and MiniPSF format files.

Source: Wikipedia. Article content is retrieved live through the MediaWiki API.

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Wikipedia

Portable Sound Format

The Portable Sound Format (PSF) is a music file format ripped directly from video games from a variety of video game consoles. The format was originally used for PlayStation video games, but has since been adapted to support other systems. The PSF format was publicly documented by Neill Corlett in 2003, who also wrote a Winamp plug-in named "Highly Experimental" that plays PSF1 and PSF2 files. Generally, PSF files contain a number of samples and a music sequencer player program. This takes far less space than an equivalent streamed format of the same music (WAV, MP3) while still sounding high fidelity. Background music stored in PSF files can usually be looped forever, as the sequencer handles its own loop points. Several PSF sub-formats also have a miniPSF/PSFlib capability, wherein data used by multiple tracks is stored only once in an accompanying PSFlib file. Further differences are stored in a miniPSF file, which can be compressed via zlib to further increase storage efficiency. A PSF2 file is the PlayStation 2 equivalent of a PSF. PSF2 is internally structured as a file system, rather than PSF, which is a single PS executable. PSF's native sample rate is 44,100 Hz, while PSF2's is 48,000 Hz. Rates may vary from 8,000 Hz to 96,000 Hz. Both PSF and PSF2 files contain a header which specifies the type of video game system the file contains data for, and an optional set of tags at the end which can give detailed information such as game name, artist and length.

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Wikipedia

QSF

QSF may refer to: Quebec Soccer Federation Qalamoun Shield Forces, a Syrian militia IATA code for Ain Arnat Airport, an airport in Algeria Unofficial code for airports in the San Francisco Metropolitan Area, used in some ticketing systems but not approved by IATA An uncompressed variant of the Portable Sound Format Extension and file format for data files exported by Qualtrics online survey software

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Wikipedia

Synthetic music mobile application format

Synthetic music Mobile Application Format, abbreviated SMAF, is a music data format specified by Yamaha for portable electronic devices, such as cell phones and PDAs. The file extension for SMAF is .MMF and is common as ringtones for mobile phones with one of five sound chips. SMAF resembles MIDI, but also supports graphics and PCM sound playback. Its MIDI playback is produced via FM synthesis or PCM sample-based synthesis, where instrument data (parameters and/or PCM samples) is stored within the .MMF file itself, similar to module files. This enables users to create custom instruments, which will sound exactly the same on devices with the same chip. The feature set used in SMAF files usually orients itself at the chips produced by Yamaha for playback:

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Wikipedia

CD player

A CD player is an electronic device that plays audio compact discs, which are a digital optical disc data storage format. CD players were first sold to consumers in 1982. CDs typically contain recordings of audio material such as music or audiobooks. CD players may be part of home stereo systems, car audio systems, personal computers, or portable CD players such as CD boomboxes. Most CD players produce an output signal via a headphone jack or RCA jacks. To use a CD player in a home stereo system, the user connects an RCA cable from the RCA jacks to a hi-fi (or other amplifier) and loudspeakers for listening to music. To listen to music using a CD player with a headphone output jack, the user plugs headphones or earphones into the headphone jack. Modern units can play audio formats other than the original CD PCM audio coding, such as MP3, AAC and WMA. DJs playing dance music at clubs often use specialized players with an adjustable playback speed to alter the pitch and tempo of the music. Audio engineers using CD players to play music for an event through a sound reinforcement system use professional audio-grade CD players. CD playback functionality is also available on CD-ROM/DVD-ROM drive-equipped computers as well as on DVD players and most optical disc-based home video game consoles.

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TOPIC OF THE DAY

Greenwood / Black Wall Street

Before the 1921 destruction of Tulsa’s Greenwood District, Black residents had created a remarkable center of business and community life. The district included stores, professional offices, entertainment venues and homes owned by Black citizens. Understanding Greenwood means learning what was built—not only what was burned.

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TRIVIA QUESTION OF THE DAY

What prosperous Tulsa district became widely known as “Black Wall Street”?

The Greenwood District.