Embodiments disclosed herein generally relate to a HAMR head. The HAMR head includes a main pole, a waveguide and a NFT disposed between the main pole and the waveguide. The NFT includes an antenna, and a portion of the antenna is disposed at a media facing surface. By increasing the volume of the antenna extending from the MFS, the temperature of the NFT during operation is reduced.

Embodiments disclosed herein generally relate to contact at the disk by the recording head in a hard disk drive. In one embodiment, a direct current is applied to an element in a HAMR head. An alternating current is then applied to the element over top of the direct current to cause the HAMR head to dither. By monitoring the head signal at the dither frequency, a touchdown or contact of a NFT on a disk may be detected based upon variations in the produced signal.

Methods, apparatuses and systems for detecting defective sectors on a recording medium, the method including calculating a servo gain for each servo sector of a track of a recording medium of a storage device; determining whether the servo gain of each servo sector exceeds a threshold value; and upon determining that the servo gain of a servo sector exceeds the threshold value, determining data sectors included in the servo sector to be defective sectors.

In a case where (i) a reflectance calculated from a reflected light amount obtained from a longest pit (P1max) or a longest space (S1max) in a first pit row is defined as a first reflectance and (ii) a reflectance calculated from a reflected light amount obtained from a longest pit (P2max) or a longest space (S2max) in the second pit row is defined as a second reflectance, the first pit row is formed such that the first reflectance becomes substantially identical with the second reflectance.

A heat assisted magnetic recording (HAMR) write apparatus is described. The HAMR write apparatus is coupled with a laser that provides energy. The HAMR writer has a media-facing surface (MFS) and a laser-facing surface. The HAMR write apparatus includes a free-standing reflector and at least one waveguide. The free-standing reflector resides on the laser-facing surface and has a concave reflective surface oriented to receive the energy from the laser. The waveguide(s) are optically coupled with the free-standing reflector and direct energy from the laser toward the MFS.

During field operation of a heat-assisted magnetic recording data storage device, a laser adjustment procedure is performed. The laser adjustment procedure involves writing on a recording medium at least three tracks. If a bit error rate of a middle tracks has increased, the laser current is swept while recording test tracks to determine a new laser current that results in a minimum bit error rate. The new laser current is used for subsequent write operations.

An optical-information recording/reproducing apparatus of the present invention is capable of carrying out position detection of a reproduction image even if reproduction image data with incomplete alignment marks (markers) is obtained. A relative correlation value is calculated from a first correlation value retained by a first correlation-value retaining unit and a second correlation value retained by a second correlation-value retaining unit, and pass/fail of a position detection result of the marker is judged according to the relative correlation value. The pass/fail of the position detection result is judged by mutually comparing the detection positions of the markers judged as passes by the relative correlation-value judgement, the positions of the markers judged as fail by the relative correlation-value judgement or the mutual position judgement is complemented, and the position of two-dimensional data is detected based on the pass-judged markers and the complemented markers.

The present technology relates to a recording control apparatus, a recording control method, a drive controlling controller, a drive controlling method, a recording medium, and a program capable of reading information more reliably. A manager generates DMSs as management information for managing user data areas and spare areas of an optical disc. Further, the manager records the generated DMS in a DMA area of DS0 of the optical disc, and, in addition, records the generated DMS in a DMA mirror area of the DS1 surface of the optical disc. As described above, since DMSs as management information are recorded in the different areas of the optical disc, even if DMS cannot be read from one area, DMS can be read from the other area. The present technology is applicable to a recording and reproducing apparatus.

There are provided an optical disk and an optical disk recording method which are capable of stable data reading in a case where a recording linear density is increased. According to an optical disk of the present disclosure, a run-in pattern recorded in a groove track and a run-in pattern recorded in a land track are made different patterns so that no great change is caused in the amplitude of an acquired signal due to interference between adjacent recording patterns, and thus, data may be stably read.

Provided is an optical information recording medium including: a continuously wobbling groove formed in advance by a CAV or a zone CAV. Information is allowed to be recorded on the groove and a land adjacent to the groove, address information is recorded by modulating the wobble, the address information includes a sync pattern indicating a position of the address information and address data, and the sync pattern includes a plurality of first wobble patterns and a second wobble pattern between the first wobble patterns, and at least part of intervals of the first wobble patterns are set to unequal intervals.

A combination of a semiconductor member and a metal member is selected appropriately from a view point of increasing an enhancement factor of a near-field light. A device (1) has a semiconductor member (101) and a metal member (102), a near-field light is generated at the metal member when an energy is supplied to the semiconductor member, the metal member is made of an alloy including a first metal and a second metal, a condition of Rm1

The present technology relates to an information processing device and method, a recording medium, and a program, which can improve a data transfer speed. In the recording medium, a recording area is divided into a plurality of simulated zones and a set of the plurality of simulated zones composes a simulated zone group. Then, an address is set to each area in the simulated zones so that the addresses are interleaved between the simulated zones composing the simulated zone group. By interleaving the addresses between the simulated zones in this manner, a local seek operation or a rotational delay can be reduced and the data transfer speed can be improved when recording or reproducing data to the recording medium in more than one channel at the same time. The present technology can be applied to an optical disk.

Methods and apparatuses for detecting mode hopping in a laser diode or other optical energy source in heat-assisted magnetic recording. An output power of the laser diode or other optical energy source is measured and the output power is differentiated over time to determine a rate of change. If it is determined that the rate of change exceeds a threshold value, a fault signal is asserted indicating a potential mode hopping event.

An optical information recording/reproducing apparatus and method thereof which compensate for the effect of mechanical instability on holographic data storage. A time dependent deviation profile of an optical beam during recording is determined. The time dependent deviation profile is related to a phase profile to be applied to a reference beam during recording or reproduction of a hologram, and the related phase profile is applied to the reference beam during recording or reproduction of the hologram.

A base for a magnetic recording medium includes, a substrate made of an Al alloy, and a film made of a NiP-based alloy and provided on the substrate. The Al alloy of the substrate includes Mg in a range of 0.2 mass % to 6 mass %, Si in a range of 3 mass % to 17 mass %, Zn in a range of 0.05 mass % to 2 mass %, and Sr in a range of 0.001 mass % to 1 mass %. An average grain diameter of Si grains in an alloy structure of the substrate is 2 μm or less. The film has a thickness of 10 μm or greater. The substrate has an outer diameter of 53 mm or greater, a thickness of 0.9 mm or less, and a Young's modulus of 79 GPa or higher.

As part of Audio-Technica’s ongoing series of resources that help users adjust to the circumstances brought about by the health crisis, the company offers its video tutorial series Basic Recording Techniques on YouTube, which features 20 different videos covering the basics of recording solo vocals, acoustic guitar, electric guitar, piano, saxes and more. The videos […]

The post Audio-Technica teaches users the fundamentals of professional recording appeared first on rekkerd.org.

Rast Sound has announced the release of its new sample library Distant Choir, a free Kontakt instrument library featuring a collection of solo vocal recordings from over 20 countries. The 210 MB library includes 5 playable choirs. Distant Choir is our solo vocal recordings, coming together as a choir through sound. We are releasing the […]

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SquadCast's version 2 brings new support for more browsers and even mobile devices! Plus, more accessible pricing.

The RØDECaster Pro is my new favorite piece of podcasting gear! I'll have a thorough review soon. In the meantime, here are some tips to help with one of the biggest complaints I've heard about the RØDECaster Pro.

Welcome to the Real Recording School Weekly series. Every week, Larry Crane leads a class of like-minded audio enthusiasts, engineers, and producers through a new recording or mixing challenge. Learn how to recognize and fix persistent sound issues like clicky bass, snare drum ring, boomy guitars, and hi-hat bleed, so that the music is all that listeners hear. The course features software and plugins, such as iZotope and Pro Tools, but almost all the techniques can be recreated in your favorite DAW. All you need to follow along is a pair of headphones and a passion for sound.

Note: Because this is an ongoing series, viewers will not receive a certificate of completion.

New from Drift Deeper and Sean Walsh. Download: Sean Walsh – The Resilience EP (Drift Deeper Recordings 012) Tracklist 01. I Thought I Lost Myself 02. Repitition Culture 03. The Grass is Always Greener Label: Drift Deeper Recordings (www.driftdeeper.com) – [ddr012] Format: 3 × File, .wav, LP, 1,411 kbps Released: 08 May 2015 Genre: Electronic [...]

The post Sean Walsh – The Resilience EP (Drift Deeper Recordings 012) appeared first on Drift Deeper Recordings.

Drift Deeper Recordings 013 is here, This one has been years in the pipeline, thankfully Andreiclv eventually got back to me to give the approval for release. The tracks were beautifully mastered by our friend Evaldas at Cold Tear Records. Some serious chilled people watching tracks on this release. Enjoy and share with your friends. [...]

The post Andreiclv – Cityscapes EP (Drift Deeper Recordings 013) appeared first on Drift Deeper Recordings.

Drift Deeper Recordings 014 is here, and things have changed a bit since our last release. You now will have to buy our music. Yes that’s right this is our first commercial release and we hope you all support the move from creative commons. BMinor Soundcloud Mastering by Cold Tear Records Buy: BMinor – Deep [...]

The post BMinor – Deep Forest EP (Drift Deeper Recordings 014) appeared first on Drift Deeper Recordings.

Dub Like Air Vol. 1 is a multi-artist project built around a simple concept – collaboratively creating sounds culminating in a complimentary but unique track. We started the project by deciding on a key and tempo (100 bpm and Dm), then each artist created a set of loops and sounds (drums, synths, bass, pads etc) [...]

The post Various – Dub Like Air Volume 1 (Drift Deeper Recordings 015) appeared first on Drift Deeper Recordings.

2 new tracks from Liquid Delay. Buy: Liquid Delay – AMFH (Drift Deeper Recordings 016) Tracklist 1.Liquid Delay – am5-UN 05:00 2.Liquid Delay – FH78i 05:46 Photography by Bailey Heredge Label: Drift Deeper Recordings (www.driftdeeper.com) – [ddr016] Format: 2 × File, .wav, LP, 1,411 kbps Released: 29 August 2016 Genre: Electronic Style: Dub Techno

The post Liquid Delay – AMFH (Drift Deeper Recordings 016) appeared first on Drift Deeper Recordings.

3 new tracks from Mr Zu. Buy: Mr Zu – Driftwood EP (Drift Deeper Recordings 017) Tracklist 1.Through The Fog 05:58 2.Echova 06:22 3.Chorus Drone 06:08 Label: Drift Deeper Recordings (www.driftdeeper.com) – [ddr017] Format: 3 × File, .wav, LP, 1,411 kbps Released: 12 September 2016 Genre: Electronic Style: Dub Techno, Ambient

The post Mr Zu – Driftwood EP (Drift Deeper Recordings 017) appeared first on Drift Deeper Recordings.

6 new tracks from Vis. Buy: Vis – Forest EP (Drift Deeper Recordings 018) Tracklist 1.Träume 09:28 2.Surface Noise 07:38 3.One Six Zero 16:54 4.One Time 08:35 5.Forest 10:54 6.Time 101 11:20 Label: Drift Deeper Recordings (www.driftdeeper.com) – [ddr018] Format: 6 × File, .wav, LP, 1,411 kbps Released: 01 November 2016 Genre: Electronic Style: Dub [...]

The post Vis – Forest EP (Drift Deeper Recordings 018) appeared first on Drift Deeper Recordings.

3 new tracks from Dijuma. Buy: Dijuma – Dub From The Ghetto EP (Drift Deeper Recordings 019) Tracklist 1.D-10 07:36 2.Dub C 07:44 3.Dub C (Dub Version) 06:45 Label: Drift Deeper Recordings (www.driftdeeper.com) – [ddr019] Format: 3 × File, .wav, LP, 1,411 kbps Released: 13 December 2016 Genre: Electronic Style: Dub Techno

The post Dijuma – Dub From The Ghetto EP (Drift Deeper Recordings 019) appeared first on Drift Deeper Recordings.

3 new tracks from Midub. Free Download: Midub – The Story Dub EP (Drift Deeper Recordings 020) Tracklist 1.Forest Dub 06:50 2.Horizon Dub 06:40 3.The Story Dub 06:32 Label: Drift Deeper Recordings (www.driftdeeper.com) – [ddr017] Format: 3 × File, .wav, LP, 1,411 kbps Released: 24 February 2017 Genre: Electronic Style: Dub Techno, Dub Ambient

The post Midub – The Story Dub EP (Drift Deeper Recordings 020) appeared first on Drift Deeper Recordings.

Offers more than a whistle-stop tour of the hits.

A Sunshine Coast man has been charged with rape and secretly recording a number of his female flatmates using hidden cameras, over the course of five years.

A Denmark man has pleaded guilty to more than 50 charges relating to filming, or attempting to film, his teenage step-daughter.

The details of a secret recording of a conversation between accused Adelaide wife killer Peter Dansie and his son are revealed in court.

Submitted by Nicole Hernandez: University Libraries participated in the RUSA Data in the Libraries webinar series this semester. The webinar recordings are now available online. The following webinar records are now available: Understanding and Working with APIs Data Processing and Visualization Open Data Data Basics and The Reference Interview Information on the webinar series, and […]

As Well As Building BMG's European Infrastructure, Casimir Was Instrumental In Developing BMG's Recordings Business

From September 2019 Onwards, Audials Generation 2020 Will Be Available On Online Shops And In Specialist Stores.

Seven Seas Music Will Now Represent The Re-recorded 11-track Album For Placements In Film Trailers, Advertising, Video Games, And More.

As Well As Building BMG's European Infrastructure, Casimir Was Instrumental In Developing BMG's Recordings Business

"Rock On" The Little Label That Did And Is Still!

Bongo Boy Music Group/Bongo Boy Records Are Very Excited To Sign A Complete Full-length Album By Talented Canadian Recording Artist Frank Trousdell.

TRB released a straight-to-recording series in April that presents highlights and findings of the NCHRP Domestic Scan 16-02 on Landscape Design Practices for Roadside Water Management . This scan investigated how transportation agencies are applying principles and practices of green infrastructure (GI) for roadside water management to mitigate adverse impacts of flooding, drought, and temperature extremes affecting their infrastructure. The videos are available on-demand at no charge. Presenters: Garrett...

This is one of the best interviews on American politics ever to be broadcasted. Ralph Nader and Jill Stein discuss our corrupt government and corrupt media controlled by corporations, and explain how we no longer have a democracy but corporate tyranny. Continue reading →

Audio recordings of two 911 calls placed moments before Ahmaud Arbery was killed confirm that at least two people were concerned that a black man was running in their Georgia neighborhood.

Audio recordings of two 911 calls placed moments before Ahmaud Arbery was killed confirm that at least two people were concerned that a black man was running in their Georgia neighborhood.

The release Friday of a 2005 videotape of Donald Trump making vulgar comments about women tested The Times' language standards and its print production deadlines.

Audio recordings of two 911 calls placed moments before Ahmaud Arbery was killed confirm that at least two people were concerned that a black man was running in their Georgia neighborhood.

Rafael Cardenas had a simple project for 2020: Take a daily photograph of Los Angeles. What he captured is a city under coronavirus lockdown.