Re: Digitizing audio cassettes and extracting the contents of digital cartridges.

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Here's the announcement I was referring to earlier. I saw it posted on the NFB in CS list, but it was forwarded to that list from another list. I had some trouble with the cutting and pasting, so hopefully the formatting comes through.



Perkins Library Product Sale Program

The Perkins Library, a division of the renowned Perkins School for the Blind, is now selling several products to assist and support your use of "talking books" and BARD (The Braille & Audio Reading Download Website) through the National Library Service for the Blind and Physically Handicapped (NLS) of the Library of Congress, in cooperation with state library agencies.

Through the use of Amazon Marketplace, several products are being made available for sale to individuals, organizations and agencies to support the "talking book" reading experience.

Listed below are the products that we now have for sale, including our pricing as well as links to purchase them online directly from Amazon.com.

Digital Cartridges

Until recently, only 4 gigabyte cartridges were available for the NLS Talking Book Player. This limitation kept people from putting all their favorite music, books, or their favorite book series on one cartridge. But now, Perkins School for the Blind has broken down that capacity barrier and will soon be offering cartridges in an 8 gigabyte version as well as a 16 gigabyte version. The 8 GB version will be able to hold a whopping 768 hours of audio, and the 16GB version will be able to hold over 1536 hours of audio. This means not only will you be able to put all your favorite books on one cartridge, but now most people will be able to store every single book from all of their favorite authors on one cartridge. Of course, every book is different in size, but we have found that a 4GB cartridge can hold 35-45 average sized books. This means that with our 16 gigabyte cartridge, on average you will be able to store up to an amazing 180 books on one cartridge!

* 4GB Blank Cartridge for Talking Book Players<http://www.perkins.org/4gb>
Price: $9.99 Each
* 8GB Blank Cartridge for Talking Book Players<http://www.perkins.org/8gb> NEW!
Price: $10.99 Each
* 16GB Blank Cartridge for Talking Book Players<http://www.perkins.org/16gb> NEW!
Price: $13.99 Each

These 4, 8 and 16 gigabyte cartridges can hold audio content in the NLS talking book format, play books that are downloaded from the NLS BARD website, and will play on the NLS Digital Talking Book Player. To download books from BARD (the NLS book download website) you must be an authorized "Talking Book" patron. DAISY, MP3, and WAV files (often used for music) can also be placed on digital cartridges.

Cartridges will work with the APH (American Printing House for the Blind) BookPort DT, and APH's Joy Player (Note: the APH Joy Player is not enabled to play NLS Talking Books). Digital cartridges are also compatible with Humanware's Victor Reader Stream (adapter or cable required).

It is important to know that in order to load data onto a cartridge, it requires a data transfer cable to connect it to your computer. This cable will work with any computer that has a standard USB port.

* Belkin Pro Series USB 2.0 Transfer Cable from Computer to Digital Cartridges <http://www.perkins.org/cable>
Price: $4.99 Each

This cable can be used to transfer data, audio books, mp3 files, and more, from any computer with a USB port to the cartridge.

* Container/Mailer for the Digital Talking Book Cartridges<http://www.perkins.org/container>
Price: $1.99 Each

This custom-made light gray plastic mailing container also doubles as a protective holder for the cartridges. Each postage-free container holds a single cartridge, can be used to safely send cartridges through the mail, and comes with the imprint: "Free Matter for the Blind or Handicapped".

* Travel Case for the National Library Service (NLS) Digital Talking Book Player<http://www.perkins.org/travelcase>
Price: $54.95 Each
Made from a soft, water-and-stain resistant, black, durable Italia faux leather, this form-fitting case is custom made to fit the National Library Service for the Blind and Physically Handicapped/Library of Congress Digital Talking Book Player. Its soft, leather-like material fits the Talking Book Player like a second skin and makes it easy to carry. No need to ever remove the Talking Book Player from this durable case. The unit can be carried on a comfortable shoulder strap or a hand carry strap. The case is designed to allow easy access to load your cartridges, access all of the buttons, the USB port, and the headphone jack. It comes with a zippered pocket/flap that can accommodate up to three cartridges, or other accessories. The pocket/flap can be secured in an open position by fastening the flap under the unit. In the closed position, the pocket/flap protects the keys, covers the cartridge area, power cord area in the rear, and protects the overall unit. This case fits both the standard and advanced NLS players. * "Over the Ear" Style Earphone for Talking Book Players<http://www.perkins.org/earphone>
Price: $8.99 Each
This "Over the Ear" style Earphone with a single-earpiece speaker may look unusual, but is very comfortable, durable, and has great audio quality. Used by many in law enforcement and news program listeners for steadfast listening where dependable, crisp audio, and long duration comfort is a concern. Fits ear without fatigue or pain after prolonged use. It stays on your ear better than buds, and won't fall off. It even makes for a comfortable pillow speaker while in bed. A great value for the price with excellent sound quality, with a 5-foot length cord and a 3.5 mm jack.

Please visit the new Perkins Library Store<http://www.perkins.org/nls> for links to all of our products.

To order our products in quantities of 100 or more, please contact Tim McGrath by email at: Tim.McGrath@xxxxxxxxxxx<mailto:Tim.McGrath@xxxxxxxxxxx>.

FAQ:

Q. Can people order the cartridges by phone, or is the phone number only for questions? A. The phone number is generally only for questions. We set things up so patrons will go directly to Amazon to make purchases. We do however realize that a small number of patrons will not have access to Amazon themselves, from a friend or from a family member. In those cases, they can call us and we can buy products from Amazon for them, provided they are willing to give us their credit card to do so.

Q. Can individuals also purchase products through the Perkins Library Products web site as well as on Amazon.com? A. The Perkins Library Products page is merely a portal leading to the products on Amazon.com

Q. Your assistance with patrons and their credit cards, would this only be for Perkins Library patrons, or patrons of any talking book library? A. We will help anyone make purchases if they have no other way to do it. This includes patrons nation-wide as well as any other non-patrons worldwide.

If you have any other questions, please feel free to call the Perkins Library at 617-972-7240 or email Library@xxxxxxxxxxx<mailto:library@xxxxxxxxxxx>


On 09/10/2017 10:08 AM, Linux for blind general discussion wrote:
Okay, I'v managed to find Perkins branded Digital Cartridges on
Amazon, but there doesn't seem to be any listings for the cables. Does
anyone know if the cartridges include the cables? Either way, I'm
tempted to pick up a 16GB cartridge as a stop gap for playing the
encrypted files if I can't figure out how to play them on my Blaze ET
or Linux PC, though considering how anemic 16GB is for storage this
day and age, I find myself wondering if my digital cartridge player
can play audiobooks stored on an SD card in a dongle-style reader
connected to the USB port on the side of the player. *Tries it with
the 256GB card from my Blaze ET.* Okay, its been beeping for a few
minutes and the pause, fast forward, and rewind buttons just play a
please wait message with no explanation. I can only assume its trying
to scan the SD card for compatible files.

Given a suggestion to use a standard tape deck to rip two of a
cassette's four tracks at a time and do post processing to account for
tapes having non-standard formats, I've been searching for a suitable
one on Amazon, and while there are several rather affordable models
designed specifically for converting cassettes to digital files, it
isn't always clear which models are stand-alone, which rely on a PC
and specific drivers, and which should work with any recording device
with a line-in/microphone jack, and many sound like they're hardcoded
to output mp3, which I deem completely unacceptable in this age of
terabyte harddrives and 256GB memory cards, and even cutting record
time by more than half isn't worth lossy compression when I already
have a recording device with line-in and wav support, and there's no
mention of sample rate or bit depth on any of the product pages I've
checked. If anyone has any suggestions for cutting through the cruft,
it would be greatly appreciated.

I've only ever used sox for concatenating flac files, but I understand
its one of the most versatile command line tools for manipulating
streamed audio. Can anyone provide instructions on how to do the
following tasks in sox or via another command line tool?

-Reversing an audio stream in a way equivalent to playing an audio
cassette backwards.
-Altering the sample rate for playback without altering the samples
themselves. Also, am I correct that, if your analog source is playing
at double speed, you'd want to record at twice the target sample rate
before slowing the recording down?
-Splitting multi-channel files into single channels files or merging
single-channel files into multi-channel files.
-Trimming silence to a given length at the biginning/end of a stream
or splitting a stream into multiple files in the middle of internal
silence exceeding a certain length.
-Anything else that might be useful for the task at hand.

Oh, and my digital cartridge player eventually finished whatever it
was doing, but still offered no explanation, not even a "no content
found" message. The contents of my SD card seems unaffected putting it
back in my Blaze ET.

Sincerely,

Jeffery Wright
President Emeritus, Nu Nu Chapter, Phi Theta Kappa.
Former Secretary, Student Government Association, College of the Albemarle.

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Christopher (CJ)
Chaltain at Gmail

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