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Convoluted Convo

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Comments

  • rcfrcf

    @espiegel123 said:
    Btw, I am having fun using Rooms to do non-reverb convolution by using instruments and such as IRs. Great for drones and such. I'll post some examples in the coming days.

    I also use parallel instances of Rooms in AUM in the same way; ambient and noise heaven. I recently recorded some Koshi Wind Chimes, smeared the resulting audio with some granular processing, filtering and phasing, then mixed it half and half with a Blackhole reverb IR. Processing the audio in this way helps to mitigate the uncontrollable resonant peaks you would otherwise get when playing notes that coincide with the pitch content of the IR.

  • rs2000rs2000

    @espiegel123 said:

    @Gravitas said:

    @espiegel123 said:
    Btw, I am having fun using Rooms to do non-reverb convolution by using instruments and such as IRs. Great for drones and such. I'll post some examples in the coming days.

    Intriguing.

    Looking forward to the examples.

    FWIW, using IRs this way is very similar to vocoding. I used to work on a sound design app that let you arbitrarily convolve sounds against each other. A lot of horror and sci-fi soundtracks featured liberal use of it. Apesoft's Sparkle does something along these lines I think.

    Anyone remembers the old "Transform multiplication" like seen in the E-mu samplers?

    Just did that yesterday with a vocal line breeded with a drum beat in AudioShare plus AltiSpace. Unexpected results 🤪

  • espiegel123espiegel123

    @rcf said:

    @espiegel123 said:
    Btw, I am having fun using Rooms to do non-reverb convolution by using instruments and such as IRs. Great for drones and such. I'll post some examples in the coming days.

    I also use parallel instances of Rooms in AUM in the same way; ambient and noise heaven. I recently recorded some Koshi Wind Chimes, smeared the resulting audio with some granular processing, filtering and phasing, then mixed it half and half with a Blackhole reverb IR. Processing the audio in this way helps to mitigate the uncontrollable resonant peaks you would otherwise get when playing notes that coincide with the pitch content of the IR.

    Here is an example of Rooms! being used for a decidedly not reverb use. Sadly this is mono as my iPad is still on iOS 12.x.

    @Gravitas

  • GravitasGravitas

    @espiegel123

    In the old days of recording companies bearing
    the cost of such recordings yes and even then the recording
    companies only provided an advance but not anymore.

    Recording companies still try to take the bulk of the % and
    the artist foots the bill before it even reaches discussion
    level with the record company.
    To this day signed artists still have to provide demo's.
    Always have done actually.

    It's why I went independent and remain so to this day.

    For the IR's, staying on topic, the technique you've used to create the IR's is great.

    I'll have a look at Apesoft's Sparkle after I've done the heavy lifting on my tracks.

    What your experiment has done is shown that the iOS devices can provide
    quality sound that wouldn't be discernible to even professional listeners.

    An iPad with an external audio interface could easily
    replace standalone reverb units and effects processors
    many times it's asking price.

    Serious kudos for idevices.

  • GravitasGravitas

    @espiegel123 said:

    @rcf said:

    @espiegel123 said:
    Btw, I am having fun using Rooms to do non-reverb convolution by using instruments and such as IRs. Great for drones and such. I'll post some examples in the coming days.

    I also use parallel instances of Rooms in AUM in the same way; ambient and noise heaven. I recently recorded some Koshi Wind Chimes, smeared the resulting audio with some granular processing, filtering and phasing, then mixed it half and half with a Blackhole reverb IR. Processing the audio in this way helps to mitigate the uncontrollable resonant peaks you would otherwise get when playing notes that coincide with the pitch content of the IR.

    Here is an example of Rooms! being used for a decidedly not reverb use. Sadly this is mono as my iPad is still on iOS 12.x.

    @Gravitas

    Heard this in the other thread.

    Plenty of scope for experimentation.

    I've haven't been in that room in my mind for a long time.

    Thank you for the inspiration.

  • espiegel123espiegel123

    Btw, I've added a page to the wiki

    https://wiki.audiob.us/covolution_reverb_and_irs

    There isn't much there but hopefully people will contribute to the page and fill it in.

  • rs2000rs2000

    @espiegel123 said:
    Btw, I've added a page to the wiki

    https://wiki.audiob.us/covolution_reverb_and_irs

    There isn't much there but hopefully people will contribute to the page and fill it in.

    Good work. Thank you. You could add the short essay about mono/stereo/true stereo from Liquidsonic, it's the most clear description I've seen yet.

    I would suggest a minor change:

    Convolution reverbs can be used to interesting effect when you use non-IR (impulse response) files instead of impulse responses. You can use it as a sort of spectral processor to impose the harmonics of one sound on another.

    I would add:
    Since convolution is basically the multiplication of the signal spectrum with the IR spectrum, convolution cannot add harmonics that aren't present in the source signal.

  • espiegel123espiegel123

    @rs2000 said:

    @espiegel123 said:
    Btw, I've added a page to the wiki

    https://wiki.audiob.us/covolution_reverb_and_irs

    There isn't much there but hopefully people will contribute to the page and fill it in.

    Good work. Thank you. You could add the short essay about mono/stereo/true stereo from Liquidsonic, it's the most clear description I've seen yet.

    I would suggest a minor change:

    Convolution reverbs can be used to interesting effect when you use non-IR (impulse response) files instead of impulse responses. You can use it as a sort of spectral processor to impose the harmonics of one sound on another.

    I would add:
    Since convolution is basically the multiplication of the signal spectrum with the IR spectrum, convolution cannot add harmonics that aren't present in the source signal.

    Yeah. I should have worded that better, but I wanted to get it up on and off the ground. I probably should have said that it does spectral filtering.

    You are welcome to make any changes you feel would be helpful. That is the great thing about a wiki. And all AB forum members are automatically set up with accounts so that they can edit.

  • rs2000rs2000

    @espiegel123 said:

    @rs2000 said:

    @espiegel123 said:
    Btw, I've added a page to the wiki

    https://wiki.audiob.us/covolution_reverb_and_irs

    There isn't much there but hopefully people will contribute to the page and fill it in.

    Good work. Thank you. You could add the short essay about mono/stereo/true stereo from Liquidsonic, it's the most clear description I've seen yet.

    I would suggest a minor change:

    Convolution reverbs can be used to interesting effect when you use non-IR (impulse response) files instead of impulse responses. You can use it as a sort of spectral processor to impose the harmonics of one sound on another.

    I would add:
    Since convolution is basically the multiplication of the signal spectrum with the IR spectrum, convolution cannot add harmonics that aren't present in the source signal.

    Yeah. I should have worded that better, but I wanted to get it up on and off the ground. I probably should have said that it does spectral filtering.

    You are welcome to make any changes you feel would be helpful. That is the great thing about a wiki. And all AB forum members are automatically set up with accounts so that they can edit.

    Done.

  • espiegel123espiegel123

    @rs2000 : Tx

  • GravitasGravitas

    @espiegel123 said:
    Btw, I've added a page to the wiki

    https://wiki.audiob.us/covolution_reverb_and_irs

    Awesome stuff.

    Above and beyond.

    and I didn't know this until now.

    "all AB forum members are automatically set up with accounts so that they can edit."...

    Good to know.

    Thank you.

  • richardyotrichardyot

    @espiegel123 said:

    @rcf said:

    @espiegel123 said:
    Btw, I am having fun using Rooms to do non-reverb convolution by using instruments and such as IRs. Great for drones and such. I'll post some examples in the coming days.

    I also use parallel instances of Rooms in AUM in the same way; ambient and noise heaven. I recently recorded some Koshi Wind Chimes, smeared the resulting audio with some granular processing, filtering and phasing, then mixed it half and half with a Blackhole reverb IR. Processing the audio in this way helps to mitigate the uncontrollable resonant peaks you would otherwise get when playing notes that coincide with the pitch content of the IR.

    Here is an example of Rooms! being used for a decidedly not reverb use. Sadly this is mono as my iPad is still on iOS 12.x.

    Very interesting - thanks for posting!

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