【Hacker News搬运】秀HN：我制作了一个自动录制数字钢琴的微型设备

[hackernews]

Title: Show HN: I made a tiny device for automatically recording digital pianos

秀HN：我制作了一个自动录制数字钢琴的微型设备

Text: Hey HN!<p>A few years ago, I left my cushy big tech job to make hardware.<p>And made the device I always wanted - an automatic piano recorder!<p>I usually play piano improvisationally, and manually hitting record never meshed well with that. But there are always moments I wish I recorded, and now they are!<p>Hopefully it scratches a similar itch for some of you as well!<p>A few of the tech details:

• built on an esp32-s3
• custom injection molded enclosure
• BLE comms, sd card storage, DS1302 RTC
• android & ios apps with Flutter
• Shadertoy vfx support for video sharing<p>- Chip

嘿，HN<p> 几年前，我辞去了轻松的大型科技工作，转而制造硬件<p> 并制作了我一直想要的设备——自动钢琴录音机<p> 我通常即兴演奏钢琴，手动敲击唱片与之从来没有很好的配合。但总有一些时刻我希望我能记录下来，现在它们真的记录下来了<p> 希望它也能为你们中的一些人带来类似的瘙痒<p> 一些技术细节：*基于esp32-s3构建*定制注塑外壳*BLE通信、sd卡存储、DS1302 RTC*安卓&；带有Flutter的ios应用程序*Shadertoy vfx支持视频共享<p>-芯片

hn link

Url: https://jamcorder.com/

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Post by: chipweinberger

Comments:

sitkack: This is super cool, and I am so glad it has been made. I wanted this exact device (only RISC-V esp32 because why not).<p>For the room<p>The worlds smallest midi synthesizer <a href="https://www.youtube.com/watch?v=KTvVS8guBsY" rel="nofollow">https://www.youtube.com/watch?v=KTvVS8guBsY</a><p><a href="https://hpi.zentral.zone/flash" rel="nofollow">https://hpi.zentral.zone/flash</a>

sitkack: 这太酷了，我很高兴它被制作出来了。我想要这个确切的设备（只有RISC-V esp32，因为为什么不呢）<p> 对于房间<p>世界上最小的midi合成器<a href=“https:”www.youtube.com“watch？v=KTvVS8guBsY”rel=“nofollow”>https:”&#x2F；www.youtube.com；看？v=KTvVS8guBsY</a><p><a href=“https:&#x2F；hpi.zentral.zone/ flash”rel=“nofollow”>https:&quot&#x2F；hpi.zentral.zone；闪光灯</a>

pama: I’ve automagically recorded my digital piano musings starting about 28 years ago. Initially, I used a simple C code on a Linux server using select to dump from dev MIDI to a timestamped file per session (a variation of an answering machine I had previously hacked together with a friend). Later, I used pianoteq recording on an iMac, which also detects gaps and records separate timestamped files. The experience has been very positive and helpful for improving technique and composition, so I do recommend this hardware if you dont already record everything. One piece of advice, however: you want to let people who touch your piano know they get recorded, or ask them to wait until you turn off the recording. I tend to forget that I record everything after a while, and an unsuspecting friend might incorrectly assume that their improv does not lead to a permanent record. I had several people be surprised when they first learned about the automatic recording after the fact, and had to remove one or two files at their request (though the last time I needed to remove a file was around 1998; more recently, people didn’t seem to mind).

pama: 大约28年前，我开始自动录制我的数字钢琴沉思。最初，我在Linux服务器上使用一个简单的C代码，使用select将每个会话的开发MIDI转储到一个带时间戳的文件中（这是我之前和朋友一起破解的答录机的变体）。后来，我在iMac上使用了pianoteq录音，它还可以检测间隙并记录单独的带时间戳的文件。这次经历对提高技术和构图非常积极和有帮助，所以如果你还没有录制所有内容，我强烈推荐这款硬件。然而，有一条建议：你想让触摸你钢琴的人知道他们被录音了，或者让他们等到你关闭录音。我往往会忘记，过了一段时间我会记录下一切，一个毫无戒心的朋友可能会错误地认为他们的即兴表演不会导致永久记录。当他们事后第一次了解到自动录制时，我有几个人感到惊讶，不得不根据他们的要求删除一两个文件（尽管我上次需要删除文件是在1998年左右；最近，人们似乎并不介意）。

mh-: Congrats on launching, OP!<p>This might be the first Show HN that I insta-purchased after reading your landing page. The mobile interface looks extraordinarily well thought-out.

mh-: 恭喜发射，OP<p> 这可能是我insta在阅读您的登录页面后购买的第一个Show HN。移动界面看起来非常深思熟虑。

fewgrehrehre: I'm definitely not the target market for this, but I do want to say that this really scratches an itch for something that <i>should</i> exist, and I really want to compliment you on how fantastic the execution is! Very clean look in both the physical and digital realms, and I really appreciate just how fully featured it is! It really seems like the ideal version of what this product would be. Also love the idea of the bookmark pattern. Out of curiosity, is that customizable too?

fewgrehrehre: 我；我绝对不是这个目标市场，但我确实想说，这真的让人对<I>应该存在的东西产生了渴望，我真的想称赞你的执行有多棒！在物理和数字领域都非常干净，我真的很欣赏它的功能多么齐全！这看起来真的是这个产品的理想版本。我也喜欢书签图案的想法。出于好奇，这也是可定制的吗？

MrGando: Amateur Jazz Pianist here. Purchased. I love pianoteq, but also tracking how much I'm practicing every week is great, and love the idea of the bookmarks.

MrGando: 这里是业余爵士钢琴家。购买。我喜欢钢琴，但也喜欢追踪我有多喜欢钢琴；我每周练习都很棒，我喜欢书签的想法。