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comparison FC-handset-spec @ 86:8df29c96327a

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FC-handset-spec: mention FC-HDS4, i.e., headset already made
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 15 Apr 2022 01:40:32 +0000
parents e279a924f7a3
children 78d4d362c086
comparison
equal deleted inserted replaced
85:7fc66c5b54dd 86:8df29c96327a
575 headset earpiece driver will be single-ended (HSO and GND), but the same headset 575 headset earpiece driver will be single-ended (HSO and GND), but the same headset
576 can also be plugged into other FreeCalypso devices in which the jack is wired 576 can also be plugged into other FreeCalypso devices in which the jack is wired
577 to the main Iota audio channel, with Iota EARP & EARN driving Tip and Ring2 on 577 to the main Iota audio channel, with Iota EARP & EARN driving Tip and Ring2 on
578 the TRRS headset jack. 578 the TRRS headset jack.
579 579
580 We already have an official FreeCalypso headset with a TRRS plug and BTL-wired
581 earpiece speaker as described above: it is called FC-HDS4, it was custom-made
582 for us by a professional headset manufacturer company, and we have made 100 pcs
583 at the time of our initial order in the fall of 2021 - this quantity is expected
584 to be a lifetime supply for us.
585
580 1.8. Ringtone generation 586 1.8. Ringtone generation
581 587
582 In terms of the physical sound-emitting element, there are two principal ways 588 In terms of the physical sound-emitting element, there are two principal ways
583 in which cellphone ringing sounds can be produced: 589 in which cellphone ringing sounds can be produced:
584 590