The HiFi Hobbyist Podcast

In a previous podcast, we looked at Chi-Fi, Chinese-manufactured Hi-Fi, which is gaining increasing recognition in the international Hi-Fi market. In this podcast, we will look in more detail at how this industry has developed from a low-cost manufacturing centre to an innovation and R&D hub, and how Chinese brands are now building products based on their own innovations that can match or outperform traditional rivals from the West.  In the first part, we look at the historical development of the industry before moving on to policy and economic drivers. After that, we will consider examples of technological innovations originating in China and the Hi-Fi products developed from them. The podcast concludes by considering potential future directions and trends.  The accompanying music is by Frédéric Sylvestre and hosted at pixabay.com, and is used under a Pixabay content licence.

Last week's podcast looked at the issue of room acoustics and room treatment. This week, we hand over the topic to AI protagonists for a debate about whether specialist room treatments are required in a domestic setting, or whether simpler pragmatic adjustments to room decor with the potential addition of digital signal processing can suffice. As always, the purpose of deploying AI is to provide an alternative view of the issue.  The accompanying music this week is from the Planet Suite by Gustav Holst, played by the USAF Heritage of America Band and supplied by musopen.org, and available in the public domain.  I hope you enjoy the debate!

 Recent opinion pieces on the HiFi Hobbyist website have reported on differing views from online commentators on the importance of room acoustics and room treatments. In this podcast, we will look in more detail at the underlying scientific theory and seek our own conclusions on the topic.  Part 1 of the podcast outlines the basic acoustics theory, Part 2 looks at the implications of the Schroder frequency and the need to handle upper and lower frequencies differently and then Part 3 looks at treatments designed to alleviate problems caused by reflections and reverberations, before a final conclusion.  The accompanying music consists of two concertos in the Baroque style, created by the HiFi Hobbyist with the help of Mureka software.

This week's podcast is a generated discusison take a deeper look into how the recording quality of live albums improved over the 1970s. The discussion is not limited to the five albums I discussed last week, and the discussion has a more U.S-centric feel which may balance things for those who think my choices last week were too UK-biased. Once again, I have generated accompanying music to show how AI thinks live rock music from this period sounds .

For me, the 1970s were a golden age of the double live album. Of course, these were the days of vinyl, so we’re talking about four sides, giving a total playing time of up to about 90 minutes. Speaking personally, this was how I got to know some of my favourite bands of this era. In this podcast, I will seek to identify my five favourite live albums from the period and discover how they were recorded. What are your favourite live albums from the era? What memories do they evoke? I hope you enjoy the podcast  

This week’s podcast is the last in a cycle of four. Using the same sources as the Hi-Fi Hobbyist did last week, our AI protagonists discuss the significance of the key recordings of Beethoven’s 9 Symphonies.  This week’s music accompanying the podcast are selections from an early recording of Arturo Toscanini conducting the BBC Symphony Orchestra in a performance of Beethoven’s Symphony No. 6 in F major, Opus 68, the ‘Pastorale' at the Queen's Hall, London in 1937, first released in 1943 and now in the public domain and available at Wikimedia Commons. Listen for the genuine surface noise of a 78 rpm shellac record faithfully reproduced on the digital transcription!  I hope you enjoy the discussion and want to listen to more podcasts from the HiFi Hobbyist, including the last three about the Beethoven Symphonies, if you have arrived at this one first! 

This week’s podcast is the third of a four-week cycle. This week will review recordings of Beethoven’s nine symphonies from the last one hundred years. This will be followed next week by letting our AI protagonists discuss the most significant recordings of Beethoven’s symphonies.  The podcasts are all accompanied by extracts from the Symphonies. This week’s recordings of the Eroica Symphony are performed by The Czech National Symphony Orchestra and published by the Musopen Kickstarter Project under a Creative Commons PDM 1.0 Licence and hosted at classicals.de I hope you enjoy this week’s podcast, and if you do, please come back next week for the last podcast in the cycle, or if you have not done so, catch up with the previous podcasts.

This week's podcast is the second in a cycle of four in which our AI protagonists discuss Beethoven’s 9 Symphonies. Using the same sources as the Hi-Fi Hobbyist did last week, our AI protagonists select and rank their favourite three symphonies, and then go on to justify and debate their choices. Whose choice will resonate with you? The Hi-Fi Hobbyist, or one of our AI protagonists? It is perhaps appropriate, given the subject matter, that this cycle of podcasts about Beethoven’s symphonies is the most ambitious the HiFi Hobbyist has yet produced. This week's music accompanying the podcast is the final movement from Beethoven’s 9th Symphony. The first part covers the section where Beethoven revisits the themes from the preceding movements and effectively rejects them. The second part introduces the Ode to Joy theme, and the podcast concludes with the glorious conclusion to the movement, the Symphony, and Beethoven’s Symphonic output. The recording is provided by the European Archive of Music, hosted at musopen.org and made available in the public domain. Enjoy the debate and stick around to listen to the conclusion to Beethoven’s 9th Symphony at the end of the podcast.

This week’s podcast is the first of a four-week cycle. This week we will review Beethoven’s nine symphonies and choose a top five. This will be followed next week by letting our AI protagonists discuss the symphonies and the Hi-Fi Hobbyists ranking. After that, the following week’s podcast will consider some of the greatest recordings of Beethoven’s 9 Symphonies cycles, both from a musical and audio perspective, as befits a Hi-fi hobbyist podcast. The four-week cycle will conclude with an AI discussion of the different recordings. The podcasts are all accompanied by extracts from the Symphonies. This week’s recordings are performed by performed by The Fulda Symphonic Orchestra, who were recorded live on March 10, 2002 at the Grosser Saal der Orangerie. The recordings are provided by classicals.de and used under Creative Commons - Attribution-ShareAlike 4.0 International Licence. I hope you enjoy this week’s podcast and if you do, please come back in future weeks for the later podcasts.

This week’s podcast is a generated debate to decide whether Chi-Fi represents a dream or a nightmare for the Hi-Fi Hobbyist. The AI protagonists use the sources from last week's podcast to create their arguments.  Once again, the music accompanying this podcast consists of tracks of Chinese music by Kazoom, played on traditional Chinese instruments, hosted by Pixabay.com, and used under a Pixabay licence.

A few weeks ago, the main Hi-Fi Hobbyist looked at the emergence of Chi-Fi. Chi-Fi describes an industry phenomenon where independent Chinese brands deliver high-performance audio equipment at disruptive prices. It marks a shift from OEM manufacturing of Western designs to the emergence of Chinese designed kit offered by Chinese brands and sold on global platforms such as Amazon. This podcast looks in more detail at how it has developed, and the implications for Hi-Fi Hobbyists and Hi-Fi manufacturers in the West.

In last week's podcast we looked at the different amplifier classes and how they linked to the sound quality of key exemplar amplifiers of each type. One of the conclusions was that the vast majority of modern amplifiers are either Class AB or Class D. For this week's podcast, we have generated a debate between two AI protagonists, one championing the virtues of Class AB, the other, the benefits of Class D amplifiers.  For accompaniment, we have stuck with electronic techno by Nick Panek, this time a track entitled "Ridiculous". It is hosted by Pixabay and used under a Pixabay licence. I hope that you enjoy the debate. Happy listening!

A few weeks ago, we looked at the the difference between valves and solid-state components such as transistors or integrated circuits in hi-fi amplifiers. One of the issues that emerged from that podcast was the question of amplifier topology or class. It appeared from the research undertaken that the amplifier topology could have as much impact on the ultimate sound as the nature of the devices doing the amplification. In this podcast, we will consider the most common amplifier classes, the characteristics of the sound with which they are associated and some examples of highly regarded amplifiers within each class. The very fact that there are highly regarded amplifiers in each class suggests that no one class is best, but rather each has its own characteristics, and in conjunction with the loudspeakers used will generate its own particular sound quality.

In last week's podcast, I selected my favourite five Jethro Tull albums. The selection was based on musical and lyrical quality, rather than the sound quality of the original releases, but as this was a Hi-Fi Hobbyist podcast, sound quality was raised, especially in relation to the Steve Wilson remixes where available.  For this week's podcast, we have generated a debate between two AI protagonists, one set the task of defending my ranking, the other required to oppose it in classic debating fashion.  We have reused the version of Bourrée from J.S. Bach's Lute Suite in E minor, BWV 996, that inspired Jethro Tull’s famous Bourrée track when Ian Anderson heard Martin Barre play it on his guitar. This version is by Jakob Lindberg, and the recording is in the public domain.

Jethro Tull have been producing music since 1968, and therefore selecting 5 favourite Jethro Tull albums for this podcast is a difficult task. This week's podcast is the Hifi Hobbyist's attempt to select a Top Five Jethro Tull albums. Only five in the list in order to try to explore the merits of each title in some detai,l particularly with reference to the sound quality of each album. The Jethro Tull catalogue has been well served by a series of remixes by Steve Wilson, often on the 40th anniversary of the original release. Many of Jethro Tull’s early albums, in particula,r push the boundaries of what was then technically possible, and this perhaps explains why the quality of some of the original releases was less than ideal. In selecting my favourite 5 albums, I have taken into account that some of the Jethro Tull albums can be seen as companion pieces. Thus, a Passion Play and a Thick as a Brick both represent concept albums and share a common tongue-in-cheek approach. Heavy Horses and Songs from the Wood represent a more rural and folksy approach to music. Stormwatch whilst musically similar to Heavy Horses and Songs from the Wood looks forward lyrically to the more apocalyptic themes of A. Crest of a Knave and Rock Island represent a harder rock sound, whilst Minstrel in the Gallery and Too old to Rock'n'Roll, Too Young to Die can be seen as concept albums based around relatively short individual tracks. In order to reduce my options, I elected to set the criteria that no two albums that represent companion pieces could appear in my top five. The selection is based on musical and lyrical quality, rather than the sound quality of the original releases, but as this is a hifi hobbyist podcast, we will certainly discuss sound quality, especially in relation to the Steve Wilson remixes where available. As usual, we cannot use Tull’s music for copyright reasons, so the music featured is a version of Bourrée in E minor from J.S. Bach's Lute Suite in E minor, BWV 996. This is the piece that inspired Jethro Tull’s famous Bourrée track when Ian Anderson heard Martin Barre play it on his guitar. Our version is by Jakob Lindberg, and the recording is in the public domain.

Welcome to this week’s podcast, which is a generated debate about the different approaches to performing and recording Handel’s Messiah, as discussed in last week's Christmas podcast.  The AI protagonists debate the merits of the newer authentic or "historically informed" performances compared to the more traditional larger scale performances popular in the early years of vinyl LP records.  The selections of Messiah that accompany the podcast are again supplied from Wikimedia Commons. They are used under a Creative Commons 2.0 licence. Given the topic and the availability of the recordings, some of the musical clips are longer than usual. I do hope that you enjoy the podcast! 

Happy Christmas from the HiFi Hobbyist! This week’s podcast considers Handel's Messiah, which has become a staple at Christmas. We shall consider its origins, its impact, and the HiFi Hobbyists favourite recordings The selections of Messiah that accompany the podcast are supplied from Wikimedia Commons. They are used under a Creative Commons 2.0 licence I hope that you enjoy the podcast!

This week’s generated discussion iis about last week’s podcast about the relative merits of valve and solid-state (transistor) circuitry in high-fidelity audio amplification. It takes the form of a debate about the merits of each technology with each participant championing one of the technologies This week’s music is entitled Digital Sunset by Nver Avetyan and used under a Pixabay licence.  I hope that you enjoy the discussion.

This week’s podcast which considers the relative merits of valve and solid-state circuitry in high-fidelity audio amplification. We use the term “solid state’ because the discrete transistors of early designs have now largely been superseded by integrated circuits incorporating many transistors Transistors largely replaced valves in the 1960s, but have retained a niche market in high-end, and also some budget enthusiast products, and we will try to understand why. As valve amplification is often associated with fans of acoustic music, this week’s music is a piece of acoustic jazz entitled Fast Jazz by WaveMaster and used under a Pixabay licence.  I hope that you enjoy the podcast!

This week’s generated discussion uses the evidence gathered for last week’s podcast about Dark Side of the Moon and Wish You Were Here by Pink Floyd to debate the merits of each album with each AI participant championing one of the titles. Will they agree with the (human) HiFi Hobbyist?