The m100 can receive files via the cassette port from almost any audio source. The trick is to use a an audio transformer. Something like an 8 ohm to 1.2k ohm. The 8 ohm end connects to the output of the audio device. The 1.2k ohm end connects to the ear end of the m100 cassette cable. I have done many experiments with this over the years. I called the final project "the Uber Cable". The only things I could not get the cable to work with was
1. a mini-disc recorder that used a VERY specific type of ATRAC recording algorithm (prior models worked just fine) and 2. super cheap micro cassette recorders. Some of them didn't have adequate signal to noise ratios to begin with. The cable worked with cassette recorders, olympus i400 mico cassette, digital dictation recorders, Music Cds (with programs on it), tiny mp3 player/recorders (like the Iriver T30), and audio ports on a computer, etc. If you make a recording of the audio of a m100 program file and want it to be in mp3 format, I would suggest a rate of 196k. Lower rates will work, but 196k is a sweet spot. The audio coming from an m100 is line level. Some recorders only take mic level. You will need a a line level to mic level passive attenuation circuit. As for the original post in this thread.... A TON of m100 programs could be placed on an iriver T30 or equivalent and played back with the names of the files on it's tiny display. It could also record the files, but no fancy names unless you edit the device. Something small like that would need fresh batteries when recording, but it works. ________________________________ From: M100 <[email protected]> on behalf of Stephen Adolph <[email protected]> Sent: Monday, July 31, 2017 1:29:50 AM To: [email protected] Subject: Re: [M100] Virtual cassette idea Pro systems have higher output levels than a consumer device. Wonder what the output specs are. On Sunday, July 30, 2017, Kurt McCullum <[email protected]<mailto:[email protected]>> wrote: A Sony PX333 digital recorder served me well when I was not near a computer for transferring files. But once I got mComm working on my Android phone, TPPD transfers became a reality anywhere. Now the recorder collects dust. But with the MP3 set to high quality, it worked every time. I have the 720 as well and that one worked just as well. Volume set to 100% and that was it. Kurt From: M100 [mailto:[email protected]<javascript:_e(%7B%7D,'cvml','[email protected]');>] On Behalf Of Stephen Adolph Sent: Sunday, July 30, 2017 3:55 PM To: [email protected]<javascript:_e(%7B%7D,'cvml','[email protected]');> Subject: Re: [M100] Virtual cassette idea I have to agree that it is possible but in my experience not reliable. Maybe it boils down to the device. I have an mp3 player that I was using and it works sometimes and not others very frustrating. On Sunday, July 30, 2017, John R. Hogerhuis <[email protected]<javascript:_e(%7B%7D,'cvml','[email protected]');>> wrote: On Sat, Jul 29, 2017 at 4:38 AM, Stephen Adolph <[email protected]> wrote: I think the problem is voltage level from common audio devices is not high enough. Need to have at least 2vpp. Most devices put out max 1. Well FWIW, I was able to load a program via MP3 file on my iPhone 7. -- John.
