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Sender: "piclist-bounces@mit.edu" Date: Wed, 7 Oct 2020 13:57:16 -0700 Subject: Re: [EE] Looking for technique to record audio after level exceeds some value Thread-Topic: [EE] Looking for technique to record audio after level exceeds some value Thread-Index: AdadifDV3lcb/ZLwQPmWDGWxMiOiWw== Message-ID: <20201007205716.GB2651@laptop.org> References: List-Help: List-Subscribe: , List-Unsubscribe: , In-Reply-To: Reply-To: Microcontroller discussion list - Public. Accept-Language: en-US X-MS-Exchange-Organization-AuthAs: Anonymous X-MS-Exchange-Organization-AuthSource: TS500.efplus4.local X-MS-Has-Attach: X-Auto-Response-Suppress: All X-MS-Exchange-Organization-SenderIdResult: Pass X-MS-Exchange-Organization-PRD: mit.edu X-MS-TNEF-Correlator: received-spf: Pass (protection.outlook.com: domain of laptop.org designates 209.85.210.172 as permitted sender) receiver=protection.outlook.com; client-ip=209.85.210.172; helo=mail-pf1-f172.google.com; dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=laptop-org.20150623.gappssmtp.com; s=20150623; h=date:from:to:subject:message-id:references:mime-version :content-disposition:content-transfer-encoding:in-reply-to :user-agent; bh=9xd8B+KU6Vzhuj/NxkX4m7QMBHAQqiHf9VXZToM1BWQ=; b=mwV3kGQ5v5GHvA5jCSg/j+Y8kbk76sf+j8GzeT1PffKGJifPaMKfBVBDEg16nbjp4I x/PlSC9VZKE9nhX5K6edsuKKp7Dwc//rmT/v/nMVEUPqKMgGdVWBZANN19vGZWeZRx21 eI3/hNtt8UU/uKncTR6RiO6bSqIVo4cyEMXPo4AvQI8DIujDkuKHG2NGM9vPkr82S85x Z/kyrCZfSYUBT3S5/c3L1640TDuQR5xibySjTIg5xxB32TtgiDgzgNxD9jOI8BsxsDlM CZJRuNuf6qvF0+0qc+XHhWhdBrzOzJ1dMP6rLqPD4vrafBgu0uHPOaNy++hDy4nlz++F xVoQ== authentication-results: spf=pass (sender IP is 209.85.210.172) smtp.mailfrom=laptop.org; mit.edu; dkim=fail (body hash did not verify) header.d=laptop-org.20150623.gappssmtp.com; mit.edu; dmarc=bestguesspass action=none header.from=laptop.org; user-agent: Mutt/1.9.4 (2018-02-28) errors-to: piclist-bounces@mit.edu list-id: "Microcontroller discussion list - Public." list-post: x-beenthere: piclist@mit.edu x-mailman-version: 2.1.6 x-received: by 2002:a17:90a:1b6f:: with SMTP id q102mr752119pjq.10.1602104242586; Wed, 07 Oct 2020 13:57:22 -0700 (PDT) x-topics: [EE] Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 On Wed, Oct 07, 2020 at 02:28:51PM +0200, Nicola Perotto wrote: > I would use a Raspberry PI Zero W with an USB microphone, recording > connected to the WIFI LAN. Oh, it's a Linux but the duty is so > simple... After this you can analize the file audio like others > suggested. > =A0=A0=A0=A0 Nicola I agree. Bioacoustic studies use this combination often. There are also USB microphones integrated with a USB connector, about 22 x 18 x 7mm. Power the Pi from a USB battery. Reach out to it with SSH over WiFi at about the time the event is due, or was just heard. --=20 James Cameron http://quozl.netrek.org/ --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .